US citizen, 60, died of virus, while Japan says citizen who died had symptoms of virus

A US national in China has become the first foreigner confirmed to have died from the new coronavirus, while a Japanese man also died after experiencing symptoms consistent with the disease, authorities have said.

Officials announced the death toll had risen to 724, with 86 more people dying in mainland China – the highest one-day jump so far. The toll is nearing the 774 killed worldwide during the 2002-03 Sars epidemic.

Quick guide What are coronavirus symptoms and should I go to a doctor? Show Hide What is Covid-19? Covid-19 is caused by a member of the coronavirus family that has never been encountered before. Like other coronaviruses, it has come from animals. The World Health Organization (WHO) has declared it a pandemic. What are the symptoms this coronavirus causes? According to the WHO, the most common symptoms of Covid-19 are fever, tiredness and a dry cough. Some patients may also have a runny nose, sore throat, nasal congestion and aches and pains or diarrhoea. Some people report losing their sense of taste and/or smell. About 80% of people who get Covid-19 experience a mild case – about as serious as a regular cold – and recover without needing any special treatment. About one in six people, the WHO says, become seriously ill. The elderly and people with underlying medical problems like high blood pressure, heart problems or diabetes, or chronic respiratory conditions, are at a greater risk of serious illness from Covid-19. In the UK, the National health Service (NHS) has identified the specific symptoms to look for as experiencing either: a high temperature - you feel hot to touch on your chest or back

a new continuous cough - this means you’ve started coughing repeatedly As this is viral pneumonia, antibiotics are of no use. The antiviral drugs we have against flu will not work, and there is currently no vaccine. Recovery depends on the strength of the immune system. Should I go to the doctor if I have a cough? Medical advice varies around the world - with many countries imposing travel bans and lockdowns to try and prevent the spread of the virus. In many place people are being told to stay at home rather than visit a doctor of hospital in person. Check with your local authorities. In the UK, NHS advice is that anyone with symptoms should stay at home for at least 7 days. If you live with other people, they should stay at home for at least 14 days, to avoid spreading the infection outside the home.

The 60-year-old US citizen diagnosed with coronavirus died on 6 February at Jinyintan hospital in Wuhan, the centre of the virus outbreak, a US embassy spokesman in Beijing said. “We offer our sincerest condolences to the family on their loss,” the spokesman said. “Out of respect for the family’s privacy, we have no further comment.”

A Japanese man taken to hospital with pneumonia in Wuhan died after suffering flu-like symptoms consistent with the coronavirus, Japan’s foreign ministry said. The man in his 60s was suspected of having been infected with the coronavirus but due to difficulties in diagnosing the disease the cause of death was given as viral pneumonia, the ministry said, citing Chinese medical authorities.

China's ghost cities: fear of coronavirus leaves streets deserted Read more

As of midday on Thursday, 17 foreigners were being quarantined and treated for the disease in China, according to government figures. No updated figures were immediately available on Saturday.

The only reported fatalities outside the mainland have been a Chinese man in the Philippines and a 39-year-old man in Hong Kong.

Nearly 35,000 people have been infected by the new strain, which is believed to have emerged in a Wuhan market selling wild animals before spreading across China.

Facebook Twitter Pinterest Medical staff work in the isolated intensive care unit in a hospital in Wuhan. Photograph: Yuan Zheng/EPA

The government has locked down cities that are home to tens of millions of people, among whom anger is rising over its handling of the crisis, especially after a whistleblowing doctor fell victim to the virus.

The Chinese vice-premier, Sun Chunlan, visited quarantined Wuhan and instructed officials to take a “wartime” approach as they implement drastic measures, including combing the city for feverish residents.

Hundreds of cases have emerged in nearly 30 other countries as scientists race to find treatments and a vaccine.

Hong Kong has begun enforcing a two-week quarantine for anyone arriving from mainland China, under threat of both fines and jail terms. Most people will be able to be quarantined at home or in hotels but they will face daily phone calls and spot checks.

Hong Kong has 25 confirmed cases and one death. The city lost 299 people during the Sars outbreak and a deep distrust persists of authorities in Beijing who initially covered up the outbreak. Hong Kong officials hope the new measures will virtually halt the flow of people across the border while allowing the city to remain stocked with food and goods from the mainland.

In the last week Hong Kong has been hit by a wave of panic-buying with supermarket shelves frequently emptied of staple goods such as toilet paper, hand sanitiser, rice and pasta. The government has blamed unfounded rumours of shortages.

Facebook Twitter Pinterest The cruise ship SuperStar Aquarius returns to its home port in Taiwan after passengers were denied entry in Naha, Japan. Photograph: David Chang/EPA

Other governments have hardened their defences, with several countries banning arrivals from China and advising their citizens to avoid travelling there. Major airlines have suspended flights to and from China.

Asian cruise ships have become a focal point as dozens of cases have been confirmed on a vessel off Japan’s coast.

Sixty-four people onboard the Diamond Princess docked in the Japanese port of Yokohama have tested positive and other passengers have been asked to stay inside their cabins to prevent new infections. Another cruise ship carrying a passenger suspected of infection will not be allowed to dock in southern Japan, the government said. In Hong Kong, 3,600 people were confined onboard the World Dream, with eight former passengers testing positive for the virus.

On the mainland, the death on Friday of a Wuhan doctor who was reprimanded by police after he sent warning messages about the virus in December sparked a rare outpouring of grief and anger on social media.

Li Wenliang, an ophthalmologist who contracted the disease while treating a patient, was eulogised as a “hero” and people railed against “fat officials” and demanded “freedom of speech”. Videos shared on Weibo showed a small group of people blowing whistles in front of a floral tribute to Li at Wuhan Central hospital where he died.

The government expressed its condolences and ordered an investigation.

Chinese scientists claimed they may have found the animal source of the outbreak, based on genetic analysis, though their results have yet to be published.

The coronavirus is thought to have originated in bats but passed through an intermediate host before infecting humans. The researchers have identified a coronavirus in pangolins that is 99% similar to the one causing the current outbreak.

The US health department is working with the pharmaceutical firm Regeneron to develop a treatment using a class of drug that has boosted survival rates among Ebola patients. Two weeks ago Chinese doctors confirmed they had been giving anti-HIV drugs to coronavirus patients in Beijing, based on a 2004 study published after the Sars outbreak that showed “favourable” responses. Scientists around the world are also working to develop a vaccine, which experts say could take months.