China tentatively returned to work Monday after an extended Lunar New Year shutdown precipitated by the coronavirus outbreak, but with deaths from the epidemic continuing to rise, much of the country remained at a standstill, and many were working from home. Meanwhile, an additional 65 people on board a quarantined cruise ship have tested positive for the virus.

Here’s what we know:

● An additional 65 people on board the Diamond Princess have tested positive for the new coronavirus, Japan’s Health Ministry says, bringing to 135 the number of people who are known to have been infected. Pressure is mounting to test everyone on the cruise ship.

China reports 1,016 dead and about 42,600 cases of coronavirus. On Monday alone, officials recorded 108 deaths in mainland China, the most in a single day. More than 7,000 of the affected patients were in critical condition, authorities said Monday. There were 42 confirmed cases in Hong Kong, 10 in Macao and 18 in Taiwan.

● Britain announced new measures allowing the mandatory quarantine of those infected after the coronavirus outbreak was designated a “serious and imminent” threat to British health. Four more cases were confirmed in Britain, doubling its total number to eight.

● New Chinese research says the virus can be transmitted by saliva, urine and stool, as well as the usual viral route of respiratory droplets. It generally takes three days from the time of infection for symptoms to manifest, and 15 percent of the infected contract severe pneumonia.

3:31 a.m.
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CDC confirms 13th coronavirus infection in the U.S.

A person under federal quarantine in California has tested positive for coronavirus, marking the 13th confirmed case of the disease in the United States, the Centers for Disease Control and Prevention said Monday.

The person was among several hundred Americans who were evacuated last week from Wuhan, China, the epicenter of the outbreak.

Anne Schuchat, principal deputy director at the Centers for Disease Control and Prevention, said Feb. 11 the cases were diagnosed in six states. (Reuters)

“CDC is conducting a thorough contact investigation of the person who has tested positive to determine contacts and to assess if those contacts had high risk exposures,” the CDC said in an emailed statement.

The person was being treated at the University of California San Diego Medical Center. A spokesperson for the hospital did not immediately respond to a request for comment.

3:00 a.m.
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Trump said coronavirus could ‘miraculously’ go away this spring. Diseases don’t work like that, experts say.

More than once now, President Trump has suggested that the coronavirus will weaken or go away once the winter months have passed and the weather warms up.

But experts said that’s impossible to predict at this stage.

Trump first raised the idea in a tweet last week, saying the Chinese government’s efforts to control the virus would succeed “as the weather starts to warm and the virus hopefully becomes weaker, and then gone.”

He made a similar prediction in a rally Monday, suggesting that the outbreak could subside “by April.”

“You know, in theory when it gets a little warmer, it miraculously goes away, that’s true,” he told an audience in New Hampshire.

Experts said that’s wishful thinking at best: While it’s true that respiratory viruses tend to follow seasonal patterns, there’s no telling what course the novel coronavirus will take.

“This virus can do anything it wants,” Allison McGeer, an infectious-disease epidemiologist at the University of Toronto, told The Washington Post last week. “That pattern of how it’s going to spread is completely unknown, but it is critical to what the burden is going to be to all of us.”

A variety of outcomes are possible, McGeer said. The virus could peak and then recede before returning later in the year. It could also take hold in the Southern Hemisphere.

“It could be just like another coronavirus, a bunch of colds,” she said. “It could be like a regular flu season. It’s possible it could be different and worse.”

Peter Hotez, dean of the National School of Tropical Medicine at Baylor College in Texas, told CNN that nobody yet knows enough about the coronavirus to say how it will behave.

“It would be reckless to assume that things will quiet down in spring and summer,” Hotez said. “We don’t really understand the basis of seasonality, and of course we know absolutely nothing about this particular virus.”

12:34 a.m.
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Coronavirus death toll passes 1,000, and more than 7,000 patients remain in critical condition

WASHINGTON — Chinese health officials announced Monday that 108 more people died from coronavirus, the most recorded in a single day, bringing the global death toll to 1,018.

Nearly all of the new deaths were recorded in Hubei province, the epicenter of the public health crisis. The outbreak has now claimed 1,016 lives in mainland China; one person died of the disease in Hong Kong and another in the Phillippines.

The number of new infections in China grew by nearly 2,500, officials said, with 2,097 more people falling ill in Hubei.

China has confrmed more than 42,600 cases since the epidemic started. More than 7,000 people remained in critical condition in the hospital, officials said, and nearly 188,ooo were under medical supervision.

There were 42 confirmed cases in Hong Kong, 10 in Macao and 18 in Taiwan. Chinese officials also reported nearly 4,000 recoveries in the mainland.

11:29 p.m.
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The coronavirus is spreading rapidly. So is misinformation about it.

Meghan May, a university professor who researches emerging diseases, seemed an unlikely person to contribute to misinformation about the novel coronavirus. Yet last week, May shared a mea culpa on Twitter, owning up to unwittingly retweeting information that had origins in a Russian misinformation campaign.

The story that managed to evade her typically discerning sensors: a claim that a Chinese Internet company had accidentally released death toll and infection totals — ones that exceeded official estimates — before quickly scrubbing evidence of them online. If true, May said at the time, the numbers indicated that the outbreak in the Chinese city of Wuhan was far more severe than the public was warned about.

Since the first cases of a then-unidentified pneumonia were reported in late December, hoaxes, half-truths and flat-out lies have proliferated, mostly through social media. BuzzFeed News for several days kept a running list of misinformation, including wildly inaccurate reports that the death toll in China was 112,000 as of late January (reality: around 80 at the time); claims that Chinese people eating bats were the source of the outbreak (a viral photo of a woman biting a bat was not taken in China); and false suggestions that the virus was lab-engineered as a kind of bioweapon.

“I gave it some degree of credence because the artificial numbers would make the scale of the lockdown in Wuhan and the additional cities much more rational,” May told The Washington Post on Monday. “And I saw it shared by a person who is typically very credible.”

Parts of the false story seemed rooted in fact: There are signs that Beijing has silenced whistleblowers and underreported cases of infections. But the situation the story described never happened.

“It’s really insidious when you have this cloud of confusion around details,” May said.

8:00 p.m.
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Second government-chartered flight evacuating Canadians leaves Wuhan

TORONTO — A second government-chartered flight evacuating Canadians from the epicenter of the coronavirus outbreak in China has departed, Canadian foreign affairs minister Francois-Philippe Champagne said Monday.

The flight will stop in Vancouver to refuel before making its way to a Canadian military base in Trenton, Ontario, where its 185 passengers will join the 215 evacuees who arrived last week. All of them will spend 14 days in quarantine there.

Passengers completed health and immigration screenings at the airport in Wuhan. Anyone exhibiting symptoms of the virus would not have been allowed to board the aircraft, but it was not immediately clear if anyone was turned away.

Officials conduct regular health checks of those quarantined in Trenton. None of the travelers has been diagnosed with the virus.

Myriam Larouche, a Canadian graduate student, told the Canadian Broadcasting Corp. that she passes the time in quarantine by doing her homework and watching movies. The evacuees are also allowed outdoors to exercise, but must stay within a restricted area and avoid physical contact with each other.

7:08 p.m.
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A traveling British businessman appears to have spread the coronavirus in at least three countries

The story of a traveling British business executive who appears to have passed the coronavirus to Britons in at least three countries has prompted concerns over “superspreaders,” who could play an outsize role in transmitting the infection.

A British national, who has not been named, may have unwittingly spread the virus to at least 11 people in the course of his travels from Singapore to France to Switzerland to England, according to public health authorities and accounts in the British media. Infected Britons in England, France and Spain probably caught the virus from him.

The businessman, one of the first British nationals to test positive for the virus, works for the gas analysis company Servomex, according to the Guardian. He traveled to Singapore for work Jan. 20 and departed Jan. 22, the paper reported. He is thought to have contracted the virus while he was there.

6:51 p.m.
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China turns to disinfectant spray in attempt to fight the coronavirus

Emergency service workers in China are soaking cars, buildings and even airplanes with disinfecting spray in an attempt to eliminate the virus from the city of Wuhan, where the epidemic began.

In recent days, media outlets linked to the ruling Communist Party have released videos showing the sprayers at work.

In one video posted Monday to the Twitter account of the People’s Daily, workers in face masks wielding spray guns walk down Wuhan’s narrow, empty streets as they trigger the devices, unleashing white clouds behind them. They appear to be spraying the substance indiscriminately, soaking cars and buildings as they go.

The footage also shows trucks flashing their headlights as huge amounts of the disinfectant spew out of tubes attached to the vehicles.

It’s unclear how effective the method is, especially considering that the entire region is under a travel lockdown and many people are not venturing outside.

Caitlin Rivers, an assistant professor in the health security program at the Johns Hopkins Center for Health Security, said it’s unusual to use any type of spray campaign to try to prevent the spread of a viral respiratory infection.

“I have never seen that be used except for mosquito control, in which case that is warranted,” she said.

Thus far, experts think the coronavirus is largely transmitted by close person-to-person contact and respiratory droplets. “Some coronaviruses can persist on surfaces, but I usually don’t think of a street as a surface I worry about,” Rivers said.

6:00 p.m.
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President Trump says Xi told him heat kills viruses

President Trump said Monday that Chinese President Xi Jinping reassured him that the cases of coronavirus are likely to dwindle during warmer months.

“He feels very confident, he feels very confident,” Trump said. “And he feels that, again as I mentioned, by April, or during the month of April, the heat generally speaking kills this kind of virus. So that would be a good thing.”

President Trump said Feb. 10 that China's President Xi Jinping told him that by April, the spread of the coronavirus would improve due to warmer weather. (The Washington Post)

Trump made the remarks during a meeting with governors at the White House. He had spoken with China’s leader on the phone Friday.

5:54 p.m.
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Coronavirus will ‘undoubtedly’ affect Canadian economy, minister says

TORONTO — The coronavirus will “undoubtedly” have a “real” impact on the Canadian economy, the country’s finance minister said Monday.

Delivering a keynote address at a meeting of the Economic Club of Canada in Alberta, Bill Morneau said that the virus is likely to disrupt supply chains and hit Canada’s tourism sector. He also noted that oil prices have fallen 15 percent since the outbreak began because of a decrease in demand and fewer flights traveling to and from China.

“The virus is undoubtedly going to have an economic impact” across the country, Morneau said, adding that he expects it to be a topic of conversation when central bankers and finance ministers from the Group of 20 countries meet in Saudi Arabia later this month.

Last week, Carolyn Wilkins, the senior deputy governor for the Bank of Canada, said the central bank was trying to better understand the potential economic risks posed by the coronavirus. She said much would depend on how long the epidemic lasts.

“It’s never a good time to have an outbreak like this,” she said. “But when the global economy is feeling a little fragile [and] we’ve got mixed data in Canada, it’s certainly not great timing.”

There have been seven confirmed cases of the coronavirus in Canada.

5:36 p.m.
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Hong Kong evacuates apartment building after two cases in units 10 stories apart

Hong Kong’s Center for Health Protection announced early Tuesday that it would be evacuating some residents of an apartment building after two people were diagnosed with coronavirus, despite living in apartments 10 stories apart.

The evacuation will take place in the Hong Mei House in the Cheung Hong Estate in Tsing Yi, public broadcaster RTHK reported, and only those who live in apartments with the number 7 on each floor will be evacuated.

Officials said that engineers from Hong Kong’s housing department would investigate the sewage system in the building to see whether it could have been the source of the virus’s spread.

During the 2003 SARS outbreak, more than 300 people were infected in the Amoy Gardens apartment complex in Kowloon, Hong Kong, eventually leading to a quarantine of the apartment complex. Officials later said that the outbreak had spread through bathroom drainpipes.

5:16 p.m.
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Coronavirus could delay delivery of Russian S-400 air defense missile system to China

MOSCOW — Russia’s arms export agency Rosoboronexport warned Monday that its exports of the S-400 long-range air defense missile system to China could be delayed by the coronavirus.

Government officials earlier indicated that a delivery of the S-400 system to China would take place in July.

“We’re working out these scenarios just in case. I don’t rule out that certain delays in implementing all of our contracts may arise,” Rosoboronexport chief Alexander Mikheyev said, according to Interfax.

He said the agency had contracts with China for delivery and for training its personnel.

Russian health authorities are monitoring more than 20,000 people in Russia for signs of the virus, including 6,000 Chinese citizens. Two cases of the virus have been found so far.

Russia’s Federal Anti-Monopoly Service warned Monday of “economic looting” by retailers seeking to take advantage of the crisis, with a sharp increase in the cost of medical masks across Russia.

“The vast increase in retail prices for medical masks in 68 regions of the Russian Federation has all the indications of ‘economic looting’ during a period of increased demand,” the FAS said in a statement.

Russian President Vladimir Putin said last week that pharmacies that price-gouged on medicines and medical masks should have their licenses canceled.

4:53 p.m.
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Scientists hope an antiviral drug being tested in China could help patients

U.S. officials confirmed last week that physicians in Wuhan, China, have begun testing an experimental drug called remdesivir on coronavirus patients.

The drug, made by Gilead Sciences, was successfully used on the first U.S. patient, a 35-year-old man in Snohomish County, Wash. He recovered, but a single case can’t determine the extent to which the drug may have contributed.

Scientists are hopeful that the drug will work. Although remdesivir failed an ebola clinical trial, it has shown promise in laboratory tests against other coronaviruses, including severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS).

Timothy Sheahan, an assistant professor of epidemiology at the Gillings School of Global Public Health at the University of North Carolina at Chapel Hill, said that instead of developing a new drug for each emerging virus, the hope is that remdesivir could be broadly useful and work against multiple coronaviruses — one drug that could work against multiple bugs.

“I think starting a clinical trial is essential for determining if this drug will work” against the coronavirus, Sheahan said.

One of the clinical studies will test remdesivir on infected patients who are in the hospital but do not have severe symptoms. The other will test it on people with severe infections, who are on supplemental oxygen or have other complications.

Gilead is providing the drug to Chinese researchers at no charge, according to spokeswoman Sonia Choi.

4:41 p.m.
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Manufacturing in China remains slow

China’s manufacturing industry, which leads the world in terms of output, continues to be hobbled by the coronavirus epidemic. The full impact cannot be measured.

Smartphone sales in China may dip by 50 percent in the first quarter, in part because manufacturing has not fully resumed, Reuters reported.

The slowdown is having ripple effects. Automaker Nissan said Monday it would temporarily halt production at a plant in Japan over shortages of parts in the supply chain from China.

A Tesla factory in Shanghai is set to resume production, Reuters reported, but many key manufacturing facilities remain closed.

China has blocked the reopening of Foxconn plants, which supply Apple and other international technology giants, over coronavirus concerns, the Nikkei Asian Review reported. Some production may soon resume with a skeleton workforce, a source told Reuters.

3:49 p.m.
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Advance team of WHO experts arrives in China

An advance team of World Health Organization experts has arrived in China to help lay the groundwork for a larger team, officials from the body said Monday.

The team is led by Bruce Aylward, a Canadian physician and epidemiologist, who previously worked on the WHO’s response to the 2014 ebola outbreak in West Africa.

“Bruce and his colleagues will be working with their Chinese counterparts to make sure we have the right expertise on the team to answer the right questions,” Tedros Adhanom Ghebreyesus, the WHO director general, told reporters at a daily news conference.

Officials from the WHO declined to be drawn into specifics about what Aylward’s team would be doing in China, describing the members as medical professionals who would be given a large degree of autonomy to coordinate with local counterparts.

“The team is there first and foremost to learn,” said Michael Ryan, executive director of the WHO health emergencies program.

Tedros had made a trip to Beijing for preliminary talks with President Xi Jinping and Chinese officials in late January, during which it was agreed that an international mission would be sent, but subsequent deliberations over its format lasted weeks.

Some public health experts have criticized the Chinese government for initially misleading the world about the threat posed by the outbreak.

“We were deceived,” Lawrence Gostin, a professor of global health law at Georgetown University who also provides technical assistance to the WHO, told The Washington Post.