The coronavirus pandemic has upended life across the globe. Health care systems scramble to control the virus and governments are instituting strict social distancing measures to try to flatten the curve. The situation is constantly evolving as COVID-19, the disease caused by the coronavirus, rapidly spreads. 

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CNET has been tracking the outbreak since it was first traced to a novel coronavirus in early January. We have compiled answers to basic questions, ways to protect yourself and others, where you can and can't go in lockdown and advice for staying healthy and entertained during long periods at home. 

Here are the latest developments in the coronavirus outbreak each day. 

Coronavirus updates

March 31

White House warns of heavy possible death toll in US

As many as 100,000 to 240,000 Americans could die from the coronavirus pandemic even with measures like social distancing, a model presented by the White House showed on Tuesday. But the model, from the Institute for Health Metrics and Evaluation, is based on data from Italy, New York and New Jersey that have suffered serious outbreaks and isn't necessarily what will happen elsewhere. "Models are only as good as the assumptions you put into them. As we get more data, you put it in, and that might change," said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases.

The direr possible projections would come if there are major outbreaks in big cities like Houston, Dallas, Chicago and Los Angeles, said Dr. Deborah Birx, the White House coronavirus task force coordinator. "I don't believe that's going to happen," she said, basing her view on early favorable developments in cities like Seattle and Los Angeles. Even in Italy, "they're beginning to turn the corner in terms of new cases."

Even with social distancing showing some positive results, though, the officials and President Donald Trump warned that COVID-19 cases and deaths will continue to rise. "This is going to be a very bad two or three weeks," President Donald Trump said.

The federal government has nearly 10,000 ventilators, a key piece of medical equipment to treat the respiratory problems caused by COVID-19, but is withholding most of them now. Trump said. The government has sent 400 to Michigan, 300 to New Jersey, 150 to Louisiana, 50 to Connecticut, Vice President Mike Pense said. Another 450 each are being sent now to New York and Illinois.

US deaths outnumber China's

The US, Italy, Spain and France all have more deaths than China, according to tracking numbers from John Hopkins University and Medicine Coronavirus Resource Center. As of 2:00 p.m. PT on March 31, Italy is sitting at 12,428 deaths; Spain at 8,269 deaths; the US at 3,606 deaths; France at 3,532 deaths; and China at 3,309 deaths.

Apple reportedly planning to pay hourly contractors

Apple has committed to paying its hourly contract workers, according to the Wall Street Journal. This reportedly includes janitors, bus drivers and other campus workers whose jobs have been suspended due to the spread of COVID-19.

CNN anchor Chris Cuomo tests positive 

Chris Cuomo, CNN anchor and brother of New York Gov. Andrew Cuomo announced that he's been diagnosed with COVID-19 and is quarantined and working from his home basement. "I will do my shows from here," he wrote in a statement. "We will all beat this by being smart and tough and united." Andrew Cuomo has been a highly visible figure in the crisis and Chris Cuomo has covered the pandemic extensively on his daily news show, Cuomo Prime Time. 

PC sales double as people work from home

PC sales have doubled compared to this time last year, according to data from analyst firm NPD Group. Computer monitor sales are up twofold, mice and keyboard sales have grown by 10% and notebook sales are also up 10%. "Even as we are all stuck in our homes, sheltering in place or under quarantine, work demands continue," Stephen Baker, VP and industry advisor of NPD's Technology and Mobile, said. "The shift to working from home has also breathed new life into categories that were in decline, such as web cameras."

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March 30

States extend lockdown orders

With the federal social distancing guidelines extended through the end of April, several states and counties have announced longer lockdowns for residents.

1. Virginia extended its lockdown to June 10.
2. Maryland issued lockdown orders that go into effect at 8 p.m. ET Monday.
3. Florida: Four counties in Southeast Florida are on lockdown until mid-May.
4. California: The San Francisco Bay Area has extended its lockdown, originally meant to end April 7, to at least May 1.
5. Pennsylvania: 26 counties are now on lockdown until April 30.
6. Washington DC extended its lockdown for an indefinite period, enforceable by a fine of up to $5,000 and imprisonment of up to 90 days.

EPA: Don't flush wipes

In an effort to prevent clogging plumbing during the coronavirus, the US Environmental Protection Agency is urging people to only flush toilet paper. "Preventable toilet and sewer backups can pose a threat to human health and present an extra challenge to our water utilities," EPA said. "Flushing anything other than toilet paper, including disinfecting wipes, can damage internal plumbing, local sewer systems and septic systems."

US crosses testing milestone

The US has tested 1 million samples for the coronavirus and has ramped up its testing capacity to 100,000 samples a day, US President Donald Trump said at the White House's daily briefing. The administration also said that the US has developed 20 different emergency testing options and that tomorrow Abbott Laboratories will begin shipping a rapid test that can return a positive result in as quickly as five minutes. 

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March 29

Federal guidelines extended to April 30

President Trump has extended federal guidelines advising social distancing to the end of next month. The guidelines ask Americans who are older or have underlying health conditions to stay home, as well as anyone who is sick. The guidelines were released on March 16 and were originally expected to last 15 days.

Last week, Trump had said he would like to see people attending services on Easter, which falls on April 12. At a press conference announcing the extension of the guidelines, Trump said his comments about packing churches for the holiday were "an aspiration." Based on current models, he added, ending the guidelines now could lead to a situation where death numbers go down and then spike up again. "We don't want that to happen," Trump said.

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, endorsed the extended guidelines based on new models showing that 100,000 to 200,000 Americans could die of coronavirus. 

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March 28

No New York area 'quarantine'

Early in the day, Trump said he might impose a short, "enforceable" travel quarantine on the New York metropolitan region, including parts of New Jersey and Connecticut, to restrict travel out of the area. But New York Gov. Andrew Cuomo said he hadn't had any conversations with Trump about such a move.

Later Saturday, the US Centers for Disease Control and Prevention instead issued a domestic travel advisory, urging residents of New York, New Jersey and Connecticut not to travel for 14 days. This unusual move led Trump to tweet that a "quarantine will not be necessary."

Separately, Cuomo said the death toll in the state had reached 728, with the total number of cases climbing above 52,000. New York City itself has over 29,000 cases, with more than 500 deaths as of Saturday morning, officials said. Cuomo also tweeted that New York would move its presidential primary to June 23. It was originally set for April 28.

Tragic new milestones

Two days ago, the US reached 1,000 deaths due to coronavirus. On Saturday, that figure crossed 2,000. And a baby in Chicago became the first infant in the US to die from coronavirus, according to CNN.

In Italy, the number of deaths passed 10,000.

Ireland says stay at home

In Europe, Ireland joined the list of countries issuing lockdown orders. "You can buy food and attend medical appointments and even get out for some exercise but you are being asked to do as little as you possibly can," reads a notice on a government website.

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March 27

5-minute virus test gets OK from FDA

Under an emergency-use authorization, the US Food and Drug Administration approved a coronavirus test that can offer results within minutes. "You can get a positive result in five minutes and a negative result in 13 minutes. You can walk into a clinic and literally get results while you are there," an executive at Abbott Laboratories, which developed the test, told Reuters. Abbott said it plans to begin distributing the test next week and will increase manufacturing to 50,000 tests per day, the news agency reported. A week ago, the FDA approved a coronavirus test with a detection time of about 45 minutes.

US hits 100,000 cases

After surpassing China on Thursday, the US now has more than 100,000 COVID-19 cases. According to tracking numbers from Johns Hopkins University, the US is sitting at around 101,657 cases as of 3:30 p.m. PT. Italy has overtaken China in the last 24 hours, at 86,498 cases compared with China's 81,897.

Deaths in the US have topped 1,500, while deaths in Italy are at more than 9,000 and in China are almost 3,200. China is re-closing all of its theaters nationwide, according to Deadline.

Trump signs up GM and Boeing

Trump invoked the Defense Production Act to force General Motors to make ventilators, he said during a coronavirus task force briefing. It came after Trump tweeted earlier Friday that GM must "start making ventilators now." After signing agreements with other private companies, Trump said there'll be 100,000 more ventilators in the next 100 days -- and said any excess units will be given globally to countries that need them most.

Boeing is also pitching in, and will make thousands of plastic face shields each week and supply three planes to carry supplies, Trump said.

US House passes $2 trillion stimulus package

The House of Representatives approved a $2 trillion relief bill meant to respond to economic fallout from the coronavirus pandemic. The bill expands unemployment insurance, provides direct payments to many Americans and includes hundreds of billions of dollars in loans for businesses and for local and state governments. 

The bill was passed with bipartisan support by a voice vote. Trump signed the relief bill later Friday.

UK Prime Minister Boris Johnson tests positive

UK Prime Minister Boris Johnson has tested positive for coronavirus, his office announced. The 55-year-old has been displaying mild symptoms since Thursday, but will remain in charge of the government's handling of the crisis, his office stated.

"I am now self-isolating, but I will continue to lead the government's response via video-conference as we fight this virus," Johnson said in a tweet, which included his video tribute to the UK's National Health Service. 

Within hours, UK Health Secretary Matt Hancock announced his positive test.

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March 26

Trump pushes new guidance as US tops global cases

The US now has the most coronavirus cases globally at around 82,400, surpassing China's 81,700. Trump called it "a tribute to our testing." The president said he spoke with the governors of all 50 states and US territories on his idea to classify counties as either low, medium and high risk in an effort to update guidance on social distancing. "Our country has to go back to work," he said during a White House coronavirus task force briefing.

Trump also spoke to G20 world leaders, including Germany, Australia, Russia, China, Japan, India and Saudi Arabia, as well as organizations like the UN, European Commission, WHO, World Bank and the IMO, to discuss how each are dealing with the pandemic.

Initial jobless claims surpass anything in US history

Initial jobless claims in the US hit nearly 3.3 million for the week ending March 21, according to the US Department of Labor. 

"In the week ending March 21, the advance figure for seasonally adjusted initial claims was 3,283,000, an increase of 3,001,000 from the previous week's revised level," the Labor Department said. "This marks the highest level of seasonally adjusted initial claims in the history of the seasonally adjusted series. The previous high was 695,000 in October of 1982."

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US crosses 1,000 deaths

The number of COVID-19 deaths in the US has reached 1,046, the Johns Hopkins University tracking site reported Thursday morning, and the number of cases has surpassed 69,000.

Worldwide, the number of deaths has hit 21,100 and the number of cases has topped 463,000.

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March 25

US Senate passes $2 trillion stimulus package

The Senate passed a sweeping $2 trillion aid package 96-0 on Wednesday night. Four senators were absent because they have either tested positive for coronavirus or are self-isolating. The House may pass the legislation this week on a voice vote, allowing representatives to remain away from the Capitol as fears of infection rise. According to CBS News, the package includes:

1. Direct payments of $1,200 to most adults making up to $75,000, or $2,400 for couples making up to $150,000. Each dependent child increases the amount by $500. The amount decreases for individuals with incomes above $75,000, and payments cut off for those above $99,000.
2. Expanded unemployment benefits that boost the maximum benefit by $600 per week and provide laid-off workers their full pay for four months. Eligibility is extended to independent contractors and the self-employed.
3. $130 billion for hospitals.
4. Hundreds of billions of dollars in loans for businesses and for local and state governments. 

Apple donates millions more masks worldwide

Apple CEO Tim Cook provided an update on the tech giant's efforts to help the world through COVID-19, saying Apple has now "sourced, procured and is donating 10 million masks to the medical community in the United States." This is in addition to "millions more" donated to the hardest hit European regions. "Our ops teams are helping to find and purchase masks from our supply chain in coordination with governments around the world," Cook tweeted.

Meanwhile, Elon Musk's SpaceX is making hand sanitizer and face shields, according to a report by CNBC.

1M Californians have filed for unemployment

1 million Californians have filed for unemployment in the last 12 days, Gov. Gavin Newsom said. He added California has now distributed 24.5 million N95 masks, and has ordered 100 million new masks. Newsom also secured commitments from Wells Fargo, Citi, JPMorgan and US Bank to waive mortgage payments for the next 90 days for people impacted by the coronavirus. Bank of America only agreed to a 30-day period.

Prince Charles tests positive, self-isolates in Scotland

Prince Charles, the 71-year-old heir to the British throne, has tested positive for coronavirus, according to a spokesperson for the royal family. He's been "displaying mild symptoms" of COVID-19 but is otherwise in good health and working from home, his office said in a statement.

His wife, Camilla, has tested negative, and the couple is self-isolating at home in Scotland.

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"It is not possible to ascertain from whom the Prince caught the virus owing to the high number of engagements he carried out in his public role during recent weeks," his office said.

Charles last saw his mother, Queen Elizabeth II, on March 12, the BBC reported, but the 93-year-old British monarch "remains in good health."

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March 24

Senate, White House agree on $2 trillion stimulus package

US senators and the White House reached a deal to deliver a nearly $2 trillion stimulus package, according to The New York Times. The stimulus bill is the largest in US history and is expected to provide financial aid to individuals as well as struggling businesses. A Senate vote is expected Wednesday.

"Ladies and gentlemen, we are done. We have a deal," said Eric Ueland, White House legislative affairs director, at approximately 10 p.m. PT Tuesday. 

The legislation, according to The Washington Post, will send many American adults $1,200 and children around $500. It will also boost small businesses with a $367 billion loan program, and hospitals are set to receive $150 billion in funding.

India in total lockdown

The Indian prime minister, Narendra Modi, ordered the entire country -- 1.3 billion people in total -- to stay home for 21 days starting March 25. The extreme measures were announced late Tuesday, with Modi stating that "the only option is social distancing, to remain away from each other. There is no way out to escape from coronavirus besides this."

Worldwide cases are approaching 420,000, but India has so far reported just over 500 cases, with 10 deaths. 

Apple donates 9 million masks

Vice President Mike Pence said 9 million masks have now been donated by Apple. The remarks came during a White House briefing Tuesday afternoon, where Trump added that coming soon to hospitals around the nation are medical supplies including 8 million respirators, 14 million masks, 2.4 million face shields, 1.9 million surgical gowns, 13.5 million gloves and more than 4,000 ventilators. 

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said randomized tests are being done on a number of drugs, which are "queueing up to go to clinical trial." 

Trump hopes to have US open by Easter

During a town hall hosted by Fox News on Tuesday, President Trump said he would love to have the US "opened up and raring to go by Easter," which is on April 12. The president added that people will still have to practice social distancing, but reiterated that the cure cannot be worse than the problem. 

"I gave it two weeks and we'll assess at that time," said Trump, referencing his 15-day timeline to slow the spread. "But we have to open this country up." 

Speaking further on the Easter plan during the White House briefing Tuesday afternoon, Trump conceded that some sections of the country may have to be opened one at a time.

Tokyo 2020 Olympics postponed

The Olympic Games, originally set for this summer in Tokyo, have been postponed due to the coronavirus. In a joint statement Tuesday, the International Olympic Committee and Tokyo 2020 Organizing Committee said the decision was made to protect athletes and everyone else involved in the sporting event. 

The Games will be rescheduled to a date beyond 2020, but no later than summer 2021, said the IOC. The Olympic flame will remain in Japan, and event leaders say they hope it will serve as a "light at the end of the tunnel" for the world. 

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March 23

Trump says US will be open for business 'soon'

During a White House briefing, President Trump said the US "wasn't built to be shut down," and he is hoping local data can be used to advise areas of when they can "cautiously" resume normal activities. "America will be open for business a lot sooner than three or four months," the president said. "We cannot let the cure be worse than the problem itself."

Dr. Deborah Birx, White House coronavirus task force coordinator, said self-collected nasal swabbing is going to be made available later this week at clinics and drive-through sites. Birx added around 250,000 people have been tested in the last week.

Trump is also pushing an anti-malaria drug to be used in coronavirus tests, saying distribution of the drug, hydroxychloroquine, will begin tomorrow in New York City. It follows NY Gov. Andrew Cuomo announcing Sunday the state will begin drug trials using 70,000 doses of Hydroxychloroquine, 10,000 doses of Zithromax and 750,000 doses of Chloroquine on Tuesday.

Also during the press conference, Attorney General William Barr said people hoarding essential medical supplies like face masks and hand sanitizer will "hear a knock at the door." New laws prohibit both hoarding and price gouging.

The UK is on lockdown

British Prime Minister Boris Johnson has announced a lockdown for the UK starting Monday night, with gatherings of more than two people banned unless they're from the same household, and all non-essential stores and most public places closing. People are allowed to leave home only for essential shopping, medical needs, one form of exercise per day and travel to and from work only when absolutely necessary.

"From this evening, I must give the British people a very simple instruction: You must stay at home," Johnson said. Visiting friends and family from other households is banned. Police have been given the power to enforce the new rules, including through fines and dispersing gatherings.

Five Florida spring breakers test positive

Five University of Tampa students have tested positive after traveling for spring break, the college tweeted. It comes after spring breakers in Florida were criticized last week for going ahead with their vacation plans and massing together at beaches despite social distancing guidelines and potential risk of contracting COVID-19.

Amazon to begin delivering test kits

Amazon will be delivering and picking up coronavirus test kits in Seattle, with the program part of the Seattle Coronavirus Assessment Network (SCAN) backed by the Gates Foundation. If a person tests positive after the test kit is analyzed, they will be contacted by a health care worker. "Responding to the rapidly evolving COVID-19 crisis must be a community effort and requires support from both the private and public sectors," Kristen Helton, director of Amazon Care, said. "We ... are eager to leverage Amazon Care's infrastructure and logistics capabilities to support this local effort."

US surgeon general warns things will get worse

Dr. Jerome Adams, the US surgeon general, warned Monday that the coronavirus outbreak in the US will get worse before it gets better. "We really need everyone to understand this is serious, to lean into what they can do to flatten the curve," Adams told CBS This Morning. He added that it will be awhile before "life gets back to normal" and stressed that Americans must take steps "right now" to help stop the spread. 

Congressman with coronavirus hospitalized

Utah Rep. Ben McAdams, who tested positive for COVID-19 last week, was hospitalized on Friday after experiencing a "severe shortness of breath." McAdams said Sunday that  he's feeling better and expects to be released once doctors determine it's appropriate. In his message, the Democratic congressman also urged people to follow advice from the CDC and Utah Department of Health to stop the spread of the virus.