COVID-19, the disease caused by a newly identified coronavirus first detected in China in December, has rapidly spread across the globe. The World Health Organization has now declared the outbreak a pandemic, saying it expects to see the number of cases and deaths climb higher. However, WHO also stressed that all countries can still take steps to get the pandemic under control.
Silicon Valley companies, including Apple, urged employees to work from home and instituted measures to help hourly workers affected by the policies. Around the globe, tech giants have been hit by supply chain issues in China. Social media networks, like Facebook and Twitter, have wrestled with the spread of misinformation and taken steps to mitigate the rise of conspiracy theories and panic.
We've created a timeline for the virus below, in reverse chronological order, and will update it with the latest developments each day.
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WHO declares outbreak a pandemic
The World Health Organization has officially declared the coronavirus outbreak a pandemic. Tedros Adhanom Ghebreyesus, WHO director-general, made the announcement Wednesday, saying that "pandemic is not a word to use lightly or carelessly."
E3 2020 canceled
Rumors have been swirling for weeks that the world's biggest video game trade show would be canceled. On Wednesday, the Entertainment Software Association, the group behind E3, called the event off. The ESA said it'll look into conducting an online showcase in place of E3 in June.
CES Asia 2020 postponed
CES Asia, the sibling of the world's biggest tech trade show, CES, was scheduled to take place June 10-12 in Shanghai but has been postponed by the organizing committee, the Consumer Technology Association. No new date was announced.
"Our decision reflects the concerns of our stakeholders including exhibitors, buyers, media and speakers. Given the evolving global concerns about and impact of the coronavirus (COVID-19), we feel this is the best decision for everyone involved, " the Consumer Technology Association said in a statement.
Making tax day less taxing
President Trump suggested on Monday that his administration might give wage earners a "very substantial relief" in the form of a payroll tax cut. Trump might also be looking to extend the April 15 deadline for US residents to file their federal taxes, The Wall Street Journal reported. A filing extension would effectively serve as "bridge loan" for individuals and businesses affected by the virus since they wouldn't face fines or interest penalties.
US cases hit 1,000
The US has reported over 1,000 cases of COVID-19. The increasing number of positive cases comes against a backdrop of increased scrutiny on the US response, after reports showed the federal government "missed chances" to contain the outbreak early.
Britain's health minister infected
Nadine Dorries, the British health minister, has confirmed she tested positive for the coronavirus. According to the BBC, Dorries self-isolated at home and had started tracing people she had contact with. The same day she began showing symptoms, she had attended an event at which British Prime Minister Boris Johnson also was present.
Dorries took to Twitter late on Tuesday to thank her followers for "many good wishes."
Australia bans travel to Italy, announces AU$2.4B package
Australian Prime Minister Scott Morrison held a press conference Wednesday morning local time, announcing that Australians will be banned from traveling to Italy as of 6 p.m. AEDT on March 11. Morrison also provided details on how a AU$2.4 billion ($1.6 billion) response package will be spent, including on establishing 100 pop-up fever clinics across the nation; providing free health sessions with doctors over FaceTime, Skype and WhatsApp video calls; and helping support aged care facilities. The government is still finalizing some of the measures, with Morrison saying the package is about "keeping Australians in jobs, and keeping business in business."
AU$30 million will be spent on research into vaccines and treatments. The Australian government said there's "no point" in being tested for COVID-19 right now even if you do feel sick unless you've traveled or been in contact with someone who is a confirmed case.
Meanwhile, another three cases were diagnosed in Melbourne Wednesday — all three patients had recently traveled from the US to Australia.
Massachusetts declared a state of emergency, with 51 new cases reported and a total of 92 in the state. And in Nevada, buffets across Las Vegas are shutting down starting Sunday, at hotels including the Aria, Bellagio, MGM Grand, Mandalay Bay, Mirage, Luxor and Excalibur.
Zuckerberg works to increase testing in the Bay Area
The Chan Zuckerberg Initiative, owned by Facebook CEO Mark Zuckerberg and his wife, Priscilla Chan, are working with Stanford University to "quadruple UCSF's COVID-19 testing and diagnostics capacities by funding the acquisition of two state-of-the-art FDA-approved clinical diagnostic machines."
EU pledges 25 billion euros for coronavirus response
The European Union is setting up a 25 billion euro ($28 billion) investment fund to help address the financial crisis caused by the spread of COVID-19, Reuters said Tuesday. The European Parliament will be asked to finance the fund with 7.5 billion euros this week, European Commission President Ursula von der Leyen announced at a news conference.
Trump hasn't been tested for coronavirus
US President Donald Trump confirmed he hasn't been tested for COVID-19 because he's feeling "extremely good" and has no symptoms. During a press conference Tuesday afternoon, Vice President Mike Pence said he and Trump will continue shaking hands with people.
New York sets up containment zone
The state of New York has created a "containment zone" in the city of New Rochelle just north of Manhattan, Gov. Andrew Cuomo said. The zone falls within "a 1 mile radius around the site of the most cases in New Rochelle," Cuomo said on Twitter, adding that the city has the "biggest cluster of coronavirus cases in the state." In the zone, large gathering places, including schools and places of worship, will be closed from March 12 till March 25. The National Guard will deliver food to those living in the zone, and a temporary testing facility has been set up. The move comes as New York announced another 31 cases in the state, for a total of 173.
Selling overwhelmed the US stock market, triggering an automatic halt that paused trading for 15 minutes, amid fears over the virus' effect on the global economy. Sliding oil prices and a fall in Treasury yields contributed to the selling. Stocks rebounded when trading resumed, but then resumed sliding. The major indexes were off by more than 7% for the day. As measured by the S&P 500, stocks are down more than 15% since the beginning of the year, shortly after the new coronavirus was identified.
In Silicon Valley, companies urged employees to work from home to prevent the spread of the coronavirus. Santa Clara County, where many US tech giants are headquartered, and the San Francisco Bay Area more broadly, are the epicenter of the outbreak in California, the most populous state. Tech companies have said they'll continue paying hourly staff during the outbreak.
Trump and Pence announce guidelines, more tests, financial help
President Trump said he will be announcing "very substantial relief" on a payroll tax cut "that's a huge number," as well as giving help to hourly wage earners and small businesses. During a White House press conference March 9, Trump said he's been working with the airline, cruise ship and hotel industries because "we want people to travel to certain locations and not to other locations."
Also speaking during the conference, Pence said all travel from China into the US has been suspended, while there are travel advisories for portions of South Korea and Italy, with all passengers coming from those countries to be screened on arrival in the US. Pence said commercial labs have brought a test forward and are making it available. Also, all state labs have a test available.
Pence said the Grand Princess cruise ship has docked in Oakland, California, with the 21 infected people in isolation. His team was hoping to disembark California residents to Travis Air Force Base that day, and made arrangements with Canada and the UK to take their passengers back. Those passengers were to be transported directly to the tarmac and flown home on chartered planes.
Trump didn't respond to questions about whether he's been tested. Pence hasn't been tested, and said he will find out if Trump has. The guidance was to be released that evening on coronavirus.gov. The White House has also given additional guidelines to nursing homes around the country, with the virus now present in 35 states and the District of Columbia.
Italy shuts down entire country
Italy's population of 60 million is now under restrictions, with Prime Minister Giuseppe Conte banning public gatherings and travel except for work and emergencies.
Qantas slashes international flights
Australian airline Qantas announced a series of changes to its flights due to the coronavirus, including grounding eight of its largest aircraft, the A380, until September. It's also rerouting its Sydney-Singapore-London flights to go through Perth instead of Asia and delaying the launch of its new Brisbane-Chicago route. Its budget airline, Jetstar, has suspended flights to Bangkok (it suspended flights to Seoul last week) and reduced flights to Vietnam and Japan by almost half.
Seattle confirms three more deaths
King County, home to Seattle, confirmed 33 new cases of coronavirus and three more deaths, bringing total deaths in the county to 20 and in the state of Washington to 22.
Justice Department warns price gougers
The US Department of Justice warned that anyone found to be fixing prices or rigging bids of personal health protection equipment like gloves and face masks could face criminal prosecution.
FTC warns seven companies on cure and prevention claims
The US Federal Trade Commission and Food and Drug Administration sent warning letters to seven companies for advertising products that they falsely claim can cure or prevent coronavirus, including Silver Lozenges, herbal products, colloidal silver products, essential oils and frankincense.
NASA worker reportedly infected
The NASA Ames Research Center in Silicon Valley in California is reportedly asking employees to work from home until further notice after one tested positive for COVID-19. The facility works on advanced computing, aerosciences and astrobiology. NASA didn't immediately respond to a request for comment.
In the US, coronavirus cases hit 500, with the worldwide case numbers topping 100,000. A full breakdown can be found using the Johns Hopkins case tracking tool.
Sen. Ted Cruz in isolation
US Sen. Ted Cruz released a statement Sunday detailing his interaction with a person who tested positive for COVID-19. Given the esposure, Cruz said he has decided to remain at his home in Texas for 14 days. The interaction occurred at the Conservative Political Action Conference approximately 10 days earlier. According to his statement, Cruz feels "fine and healthy."
US State Department: 'Avoid cruise ships'
The US State Department is advising travelers to forgo cruise ship travel, particularly those with underlying health conditions. In an update to its travel site March 8, the department said the "CDC notes increased risk of infection of COVID-19 in a cruise ship environment."
The warning came as the Grand Princess cruise ship, which departed from San Francisco on a trip to Hawaii, was scheduled to dock in Oakland, California, on Monday. At least 21 passengers were confirmed as COVID-19 positive, including 19 members of the staff. The ship itself contained approximately 3,500 people and was to undergo a 14-day quarantine when it docked March 9. Passengers wouldn't be required to stay on the vessel but would be moved to military bases around the country, according to CBS News.
The Italian government signed a decree ordering millions of people into lockdown across the northern part of the country. The order put the northern region of Lombardy, as well as 14 other regions, under travel restrictions, CNN reported. The lockdown quarantined tens of millions of citizens. Italy's outbreak is the worst outside Asia and the worst in Europe, with over 7,000 cases and 300 deaths.
March 7: In the US, New York Gov. Cuomo declared a state of emergency and announced that the number of cases in the state had risen to 76. Elsewhere, Washington DC Mayor Muriel Bowser reported the US capital's first infection, and Florida and Georgia both reported new coronavirus cases, a day after the Florida Department of Health announced the first deaths on the East Coast.
Also near DC, the American Conservative Union said an attendee at last week's CPAC event had tested positive for the coronavirus, CNN reported. Trump and Pence were among those at the conference. The White House told CNN that "at this time there is no indication that either President Trump or Vice President Pence met with or were in close proximity to the attendee." That person was receiving medical care in New Jersey. And Amtrak said its Acela nonstop train service between New York and Washington would be suspended from March 10 to May 26.
In the western US, Arizona, California and Oregon reported new cases, and an employee at a downtown Seattle Starbucks was diagnosed with COVID-19. The employee was quarantined at home, Starbucks told USA Today. "We quickly activated our protocols, immediately closing the store and initiating a deep clean overnight, following all recommended guidelines from the City of Seattle and King County public health authorities," the company told the news service in a statement. It's the first US coronavirus case reported by Starbucks, according to USA Today. Earlier in the week, Redmond, Washington-based Microsoft said two of its employees had been diagnosed with COVID-19.
The head of Italy's co-governing Democratic Party, Nicola Zingaretti, said in a tweet that he'd been diagnosed with COVID-19, adding that he's fine but has to remain at home. He said on Facebook that his family was following protocols and that local health officials were contacting people he'd been in contact with, CNN reported. Also in Italy, a US Navy sailor in Naples tested positive for coronavirus, the first recorded COVID-19 case for an American service member in Europe, the Navy Times reported.
In Iran, a member of parliament, 55-year-old Fatemeh Rahbar, died from the coronavirus, Bloomberg reported. Rahbar was the second lawmaker in Iran killed by the coronavirus and one of several politicians and government officials who'd succumbed during the outbreak, The Times of Israel reported.
On the social media front, Facebook said it's temporarily banning face mask ads to help curb the exploitation of fears around the coronavirus.
March 6: Coronavirus cases reached the 100,000 milestone globally, while Trump signed an emergency funding package, and the South by Southwest festival got canceled. The US also saw the first coronavirus deaths on the East Coast, with the Florida Department of Health announcing that two people had died from COVID-19.
Global cases hit a milestone
Confirmed global cases of COVID-19 have now topped 100,000, according to a tracker developed at Johns Hopkins University. The tracker pulls data from the Centers for Disease Control and Prevention, the World Health Organization and other local and international health authorities.
Trump signs $4 billion emergency funding package
Trump signed an emergency funding package, later tweeting that he spoke to California Gov. Gavin Newsom "about the cruise ship quarantined off the California coast." Trump said test kits had been delivered for the cruise ship.
South by Southwest gets canceled
Austin, Texas-based SXSW joined a growing list of events to pull the plug amid coronavirus concerns. The event drew 417,4000 attendees in 2019. "Based on the recommendation of our public health official and director of public health and after consultation with our city manager, I've gone ahead and declared a local disaster. And along with that issued an order that cancels SXSW this year," Austin Mayor Steve Adler said in a press conference, later calling the cancelation "unfortunate." The cancellation followed multiple dropouts from companies and artists slated to appear at SXSW.
Deaths on the East Coast
The East Coast of the US saw its first coronavirus deaths, with the Florida Department of Health announcing that two people had died from COVID-19. Both victims had traveled internationally, the department said.
Pennsylvania, Indiana, Minnesota, Kentucky, Hawaii confirm first cases
Pennsylvania Gov. Tom Wolf confirmed that two people in the state had presumptive positive test results for the coronavirus. One of them, an adult from Wayne County who recently traveled to a country with an outbreak, was at home in isolation. The other, an adult from Delaware County who recently traveled to an area in the US where the coronavirus is spreading, was also at home in isolation.
Indiana health officials confirmed the first presumptive positive case of coronavirus. The adult patient, a Marion County resident, had recently returned from a conference in Boston. Officials said he's now in isolation and in stable condition, according to officials. An investigation was underway. Indiana Gov. Eric Holcomb declared a public emergency to ensure additional funding.
Minnesota also confirmed its first case: an "older adult" in Ramsey County who traveled on a cruise ship with a known coronavirus case. The patient developed symptoms Feb. 25 and sought health care March 5, and was in quarantine at home while recovering.
Kentucky Gov. Andy Beshear confirmed the first case in Lexington and declared a state of emergency. There have been 10 tests, with nine coming back negative, he said in a press conference. Beshear gave no details about the sick person, except that he or she was in a medical facility. Kentucky repurposed the poison control hotline for COVID-19 calls (800-222-1222).
Hawaii also confirmed its first case. The patient was likely exposed while aboard the Grand Princess cruise ship, with the Hawaii Department of Health saying it doesn't think the patient came into close contact with anyone who was ill. There's so far no evidence of community spread in Hawaii.
Kansas was investigating two potential cases. The Kansas Department of Health and Environment said 11 people previously been tested for COVID-19 but received negative results.
Passengers stranded on Grand Princess cruise
More than 2,000 passengers remain stranded onboard a cruise ship off the coast of Northern California, CNET sister site CBS San Francisco reported. Pence said 46 people were swabbed, with 21 testing positive for the coronavirus — 19 crew members and two passengers. The ship was banned from docking in San Francisco but would be brought into a "noncommercial port" where all passengers and crew would be tested for the coronavirus, Pence said at a press conference.
The ship's previous voyage from San Francisco to Mexico Feb. 11-21 so far resulted in one death and five diagnoses. Former passenger Margie Hartle told CBS that passengers weren't tested before getting off the ship and that many were coughing during the bus ride back to Sacramento. "We were ground zero and you have 2,500 people walking out right now in Sacramento, up in the foothills, whatever, that might be carriers," she said.
March 5: Tennessee Gov. Bill Lee announced the first case of COVID-19 in Williamson County. A 44-year-old man tested positive on Wednesday and was quarantined at home. He had returned from Boston on a nonstop flight before falling ill, according to a report.
Maryland Gov. Larry Hogan said three people in the state have tested positive for the coronavirus. All three cases were in Montgomery County, and the patients were in quarantine at their homes. All three people, a couple in their 70s and an unrelated woman in her 50s, contracted the virus during overseas travel. Hogan declared a state of emergency to ramp up the state's response.
Google, Microsoft, Amazon tell some employees to work from home
Some companies with offices in Seattle were telling employees to work from home when possible. A Google spokesperson confirmed the move after talking with local health officials. Microsoft published a post Wednesday saying that all Puget Sound and San Francisco Bay Area employees who can work from home should do so through March 25. New York Gov. Cuomo said the state is increasing its coronavirus testing capacity after approval to partner with more labs. Starbucks won't let you fill your own cup anymore due to virus-spreading concerns, but it will continue to honor the 10-cent discount for those who do bring in their own cups.
San Francisco confirms two cases of unknown origin
Mayor London Breed of San Francisco has confirmed two "community-spread" cases of COVID-19 in the city, meaning the patients weren't known to have traveled or had contact with an infected person. During a press conference, Breed said a man in his 90s with an underlying health condition was in serious condition, and a woman in her 40s was in fair condition. The patients were unrelated and were being cared for in isolation at separate hospitals in the city.
Pelosi signs $8.5 billion emergency response package
House Speaker Nancy Pelosi signed a bipartisan US emergency response package, which covers issues across employment insurance, food, telehealth, small businesses and schooling. It'll help states and local governments with the costs they incur, and also help fund vaccine research. It was headed to President Trump's desk for final signature.
IBM's supercomputer is on the case
IBM's Summit supercomputer, one of the most powerful in the world, was joining the fight against COVID-19. Simulations can examine the virus faster than growing the microorganism in labs, IBM said. Jeremy Smith, governor's chair at the University of Tennessee and director of the UT/ORNL Center for Molecular Biophysics, said the team was "very hopeful" the findings would help inform studies to find a treatment.
"Using Summit, researchers were able to simulate 8,000 compounds in a matter of days to model which could impact that infection process by binding to the virus's spike, and have identified 77 small-molecule compounds, such as medications and natural compounds, that have shown the potential to impair COVID-19's ability to dock with and infect host cells," IBM said in a blog post, adding that this would've taken months on a normal computer.
March 4: One death in California was attributed to COVID-19, while New York City began cracking down on price gouging and Australia reported its second fatality.
Contagion movie rose on iTunes
Steven Soderbergh's decade-old story of how humans might respond to a deadly airborne virus hit the top 10 rentals.
Apple out of SXSW
Apple canceled appearances at SXSW 2020, joining other huge tech brands like Facebook, TikTok, Amazon and Twitter in skipping this year's festival because of coronavirus concerns.
First fatality in California, state of emergency declared
On Wednesday, Placer County Public Health in Northern California announced the first death in the state. The victim was an elderly adult with underlying health conditions, who tested positive on Tuesday after likely contracting the disease during a Princess Cruise from Feb. 11-21 between San Francisco and Mexico. The patient was put in isolation at Kaiser Permanente Roseville.
"The state is working with federal officials to follow up on contact tracing of individuals that may have been exposed," California Gov. Newsom said in a statement. "This case demonstrates the need for continued local, state and federal partnership to identify and slow the spread of this virus." During a press conference in Sacramento, Newsom then declared a state of emergency for California.
Washington also reported its 10th coronavirus death, while the virus was spreading further in New York. President Trump tweeted late Wednesday that Congress had voted to provide $8 billion in funding to help the COVID-19 response.
Pence says 1.5 million more test kits coming
During a coronavirus conference, Vice President Pence said 1.5 million test kits were going out that day to hospitals. In addition, every state health lab and university lab could now conduct a coronavirus test. The goal was to get to a place where all doctors and clinics have access to tests, which he said would be possible "within a number of weeks."
Second Australian fatality reported in Sydney
A second COVID-19 death was confirmed in Australia. A 95-year-old resident of the Dorothy Henderson Lodge at Macquarie Park, an aged care facility just north of Sydney, was diagnosed with the coronavirus after dying. The first Australian coronavirus fatality occurred March 1 in Western Australia after a 78-year-old man returned from the Diamond Princess cruise ship.
The number of cases had risen to 22 in New South Wales, the state's department of health said. The new cases included an female resident in her 70s at the same Macquarie Park facility; a female doctor from Liverpool Hospital; a female in her 30s from the Northern Beaches; a man in his 50s from Cronulla; and a woman in her 60s believed to have returned from the Philippines on March 3.
New York City to fine stores that jack up prices on supplies
New York City tweeted it would begin issuing fines "to any store found price gouging supplies." (Residents can call 311 to report price gouging.) Sen. Ed Markey on Wednesday sent a warning letter to Amazon CEO Jeff Bezos, asking him not to allow price gouging on the online retailer, while Washington Attorney General Bob Ferguson also warned stores against jacking up prices, saying "we are taking formal investigative actions."
TED Vancouver conference reportedly delayed
TED2020 Uncharted, a conference slated to take place April 20-24 in Vancouver, has reportedly been delayed. TED was considering postponing until July or doing "an expanded and ambitious digital experience," a spokesperson told CNET in an email.
NASA and the US Air Force to reportedly test working from home
Due to fears about the spread of the coronavirus, NASA and the US Air Force were set to test teleworking, according to a Politico report that cited a NASA spokesperson and an Air Force memo. The US Air Force said it's required to test its telework capacity once a year, which it typically does during snow days. NASA said it's "taking various actions" to be prepared for the spread of the coronavirus, including making Friday an agencywide work-from-home day.
March 3: Two deaths in the Seattle area in the week beginning Feb. 24 were attributed to COVID-19, state health officials revealed, according to The New York Times. That brought the death toll in Washington state to nine. Seven new cases were announced in the state, bringing the total number of infections to 21.
In an emailed statement, the company said: "TikTok has decided not to participate in SXSW this year. While we think the risk is relatively low, we are erring on the side of caution as we prioritize safety for our team, creators, partners, artists, and brands. We are looking at a variety of alternative ways to bring parts of the previously scheduled experience to audiences in creative new forms."
Tokyo 2020 in doubt
Japan Olympic minister Seiko Hashimoto suggested the 2020 Tokyo Olympics could be postponed.
"The IOC has the right to cancel the games only if they are not held during 2020," Hashimoto reportedly told parliament. "This can be interpreted to mean the games can be postponed as long as they are held during the calendar year."
The International Olympic Committee has doubled down on efforts to ensure the games go ahead as planned. The opening ceremony is scheduled for July 24. The Paralympics are scheduled to run from Aug. 25.
Google cancels I/O
The biggest event on search giant Google's calendar each year is I/O, a developers conference held in the San Francisco Bay Area. The I/O 2020 conference was scheduled to begin May 12, but Google has decided not to go ahead with the conference this year. Attendees will get a full refund, the company said in an email.
"Due to concerns around the coronavirus (COVID-19), and in accordance with health guidance from the CDC, WHO, and other health authorities, we have decided to cancel the physical Google I/O event at Shoreline Amphitheater," Google said in a statement.
March 2: Confirmation of another four deaths in the US, all in Washington state.
German automaker BMW placed 150 employees under at-home quarantine, according to a report by Automotive News Europe. Germany at that point had reported around 160 cases of the disease.
SXSW sees two big names drop out
Twitter announced it's pulling out of SXSW, citing coronavirus concerns. A blog post from Twitter noted that the company is adjusting its travel policy. "On February 29, we informed our people and started notifying partners that we are suspending all non-critical business travel and events," the blog post said.
Twitter's attendance would have included a keynote address from CEO Jack Dorsey, as well as a larger presence from the company. In past years, Twitter has hosted speakers and events at its "Twitter House."
Google Cloud, a platform that runs a suite of services on the search giant's cloud, made its biggest event of the year, Google Cloud Next, digital-only. Scheduled for April in San Francisco, the event would now take place digitally, with "streamed keynotes, breakout sessions, interactive learning and digital "ask an expert" sessions with Google teams," according to a blog post.
Coronavirus virus gets an official name: SARS-CoV-2
A paper, published in the journal Nature Microbiology by the Coronaviridae Study Group, officially designated the coronavirus that causes the disease "SARS-CoV-2." In a slightly confusing move, the authors suggest it should be considered distinct from the virus that caused the SARS outbreak in 2002 and 2003 — but the virus is closely related to the coronavirus responsible for that outbreak.
The latest data shows that over half of all patients have recovered, with a total of 45,605 COVID-19 cases resolved. It's unclear whether recovered individuals can be infected a second time.
March 1: A second US death was confirmed in Washington state, in the same facility as the first fatality. New York state confirms its first positive case.
In France, the Louvre, the world's largest art museum, closed, as a secondary outbreak in Italy continued to spread through the northern region. Around 9.6 million people visited the museum in 2019.
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Feb. 29: Thefirst fatality in the US from the coronavirus was confirmed by the Washington State Department of Health. The man was in his 50s with an underlying health condition, state health officials said.
Washington Gov. Jay Inslee said Saturday that the state was working to keep its citizens safe, and he declared a state of emergency.
US Surgeon General Jerome Adams tweeted advice for the public to stop buying face masks, suggesting they're not effective at preventing transmission. This echoed advice from the CDC, which "does not recommend" healthy people wear a face mask to protect themselves from any respiratory disease.
Feb. 28: The Game Developers Conference, a huge gathering of video game developers that takes place in San Francisco every year, was postponed. The event was scheduled to take place March 16-20 but big-name developers like Epic, Facebook/Oculus, Blizzard and Microsoft more decided to pull out.
"After close consultation with our partners in the game development industry and community around the world, we've made the difficult decision to postpone the Game Developers Conference this March," the organizers said in a statement. "Having spent the past year preparing for the show with our advisory boards, speakers, exhibitors, and event partners, we're genuinely upset and disappointed not to be able to host you at this time."
The GDC didn't provide a new date for the event, saying only that "we fully intend to host a GDC event later in the summer."
Feb. 27: Coronavirus concerns prompted cancellation of Facebook's F8 developers conference, the biggest event for the social media giant. The event was scheduled for May 5-6.
"This was a tough call to make — F8 is an incredibly important event for Facebook and it's one of our favorite ways to celebrate all of you from around the world — but we need to prioritize the health and safety of our developer partners, employees and everyone who helps put F8 on," Konstantinos Papamiltiadis, Facebook's director of developer platforms and programs, said in a statement.
Instead of F8, Facebook said it's planning to bring developers together through locally hosted events, videos and livestreamed content.
Feb. 26: In a press conference, President Trump said the risk to Americans remains low. "The No. 1 priority from our standpoint is the health and safety of the American people," he said. He noted that of the original 15 US cases, one remained in hospital and was "pretty sick," with 14 others either fully recovered or in recovery. He also announced that Vice President Pence would coordinate the response to the virus.
The CDC confirmed local transmission of the virus had occurred in the US. This means the virus was able to spread from person-to-person in the US, rather than being imported by a traveler.
Coronavirus in pictures: Scenes from around the world 39 Photos
Feb. 25: A top Olympics official suggested the 2020 Tokyo Olympic games, scheduled to begin July 24, could be canceled, with a decision to be made by the end of May.
Feb. 23: A number of high-profile events were canceled in Italy, including Serie A football matches and one of the world's biggest fashion shows in Milan. The Venice Carnival, a world-famous masquerade, was also cut short. Tens of thousands of Italians were put into lockdown after a third death was recorded in the country.
Feb. 21: Italy reported the first person-to-person transmission of the virus and the total number of COVID-19 infections had risen to six. The cases were clustered in Italy's Lombardy region, in the north. A day later, Feb. 22, Italy reported its first two deaths.
Feb. 20: South Korea reported its first death from the coronavirus.
Feb. 19: Iran's first confirmed cases of COVID-19 were reported and, on the same day, its first two deaths.
One of the biggest video game conferences, PAX East, which takes place in Boston, saw a few cancellations. Sony, which manufactures the PlayStation and was scheduled to show off the highly anticipated title The Last of Us Part II, decided not to attend because of coronavirus concerns.
In a breakthrough, researchers working with the coronavirus created the first 3D map of a special protein that allows the coronavirus to get into human cells. Using state-of-the-art microscopy, the team at the University of Texas at Austin showed the virus is able to bind to human cells stronger than the SARS coronavirus but also noted the spike proteins can be targeted in the creation of a vaccine or treatment.
A vaccine, however, is still at least 18 months away.
"Work is starting to resume around the country, but we are experiencing a slower return to normal conditions than we had anticipated," Apple said in a statement. "As a result, we do not expect to meet the revenue guidance we provided for the March quarter."
Shigeru Omi, the chief director of the Japan Community Health Care Organization, suggested the Olympics could be disrupted or even canceled, depending on how the virus continues to spread and evolve over the next few months.
"Whether the virus is under control by the time of the Olympics is anyone's guess," he said.
Feb. 14: The US National Institute of Allergy and Infectious Diseasesreleased new images of the virus for the first time. NIAID's Rocky Mountain Laboratories in Montana used specialized equipment, scanning and transmission electron microscopes, to capture the digitally colorized close-ups.
Feb. 12: Mobile World Congress, the world's largest trade show for the mobile industry, was canceled by the show's organizer, the GSMA. The cancellation came after numerous big names including LG, Nvidia, Nokia, Vodafone, Amazon and Facebook announced they would be pulling out.
Chinese health authorities reported a jump in the number of cases and deaths in Hubei, the epicenter of the outbreak. Over 13,300 new cases were recorded in Hubei alone, an increase of 700% over the previous day. Chinese authorities had adopted a new clinical method for confirming cases, which saw them add "clinically diagnosed cases" to the count, potentially helping patients receive treatment sooner, according to CNN.
Feb. 11: The WHO officially named the disease caused by the novel coronavirus "COVID-19" (for coronavirus disease 2019.) That made things a little confusing, because the virus itself is not named COVID-19, but SARS-CoV-2.
Feb. 9: The outbreak reached a grim milestone: 811 deaths — more than the 2002-2003 SARS epidemic, which killed around 800 people.
Feb. 8: The first US citizen died from COVID-19 in Wuhan.
Feb. 7: Li Wenliang, the Chinese doctor who originally sounded the alarm about a spate of mysterious SARS-like illnesses in his WeChat group, died. He was 34.
Feb. 4: The Diamond Princess returned to port but Japanese health authorities were invited onboard to check the crew for signs of the coronavirus. It had 2,666 guests and 1,045 crew on board.
Feb. 2: The first death outside China was reported in the Philippines. A 44-year-old man from Wuhan with preexisting health conditions developed severe pneumonia and died at a hospital in Manila.
Feb. 1: A passenger who stayed aboard the Diamond Princess cruise from Yokohama, Japan, and disembarked in Hong Kong was confirmed to have the coronavirus. The ship was scheduled to return to port Feb. 4.
Jan. 30: The WHO declared a public health emergency of international concern. Tedros Adhanom Ghebreyesus, the director general of the WHO, said the organization was working with national and international public health partners to get the outbreak under control. It also issued recommendations to prevent the spread of the virus and ensure a "measured and evidence-based response."
Jan. 28: 100 deaths were recorded in China, with most of them coming from Hubei province, the epicenter of the outbreak.
Jan. 24: Major attractions began closing down, including Disney Parks in Shanghai and Hong Kong.
Jan. 23: China began to lock down cities including Wuhan, the epicenter of the outbreak. Public transport was suspended, as were flights and trains out of the city. The travel restrictions were extended to four other cities (Huanggang, Ezhou, Chibi and Zhijiang) later that day, and constraints were announced in eight more cities on Jan. 24. Beijing canceled Lunar New Year plans, which were to begin Jan. 25.
Jan. 20: The first human-to-human transmission was reported by a Chinese expert on infectious diseases after two individuals caught the disease from family members and 14 health workers were infected by patients. This was a significant development in the spread of the virus and suggested cases could be much higher.
Jan. 16: Japan saw its first case of the virus, a man who had traveled to Wuhan.
Jan. 13: The first case outside China was reported by the WHO. A woman who had traveled from Wuhan to Thailand tested positive for the novel coronavirus.
Jan. 11: The first death was reported. A 61-year-old male with an underlying health condition who had visited the seafood market died from heart failure on Jan. 9.
Jan. 10: The genetic sequence of the isolated coronavirus was shared for the first time. In total, four sequences of the virus were shared by various Chinese research institutes. A team investigating the virus eventually published their research in the New England Journal of Medicine on Jan. 24.
Jan. 7: A novel coronavirus was identified from patients and given a placeholder name: 2019-nCoV.
Jan. 1: China shut down the Huanan Wholesale Seafood Market in Wuhan, which was linked to a number of patients with the disease.
Dec. 31: China alerted the WHO of a spate of illnesses in Wuhan, China. The central city lies some 650 miles south of Beijing and is home to more than 11 million people.
Dec. 30: Dr. Li Wenliang, a doctor at Wuhan Central Hospital, warned colleagues from his medical school via WeChat about a cluster of patients being treated for viral pneumonia, linking it to the SARS coronavirus. Investigations would later rule out that virus, which had caused an outbreak in 2002-2003.
Wenliang was reprimanded by Chinese authorities for speaking out about the mysterious illnesses he had seen at his hospital and was forced to sign a statement saying he was spreading rumors.
Dec. 1: The first patient experienced symptoms of the mysterious pneumonia-like illness now known as COVID-19. No epidemiological link was established between this case and later instances of the disease.