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Virus likely to keep coming back each year, say top Chinese scientists

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    Bloomberg

Beijing, China   /   Tue, April 28, 2020   /   11:25 am
Virus likely to keep coming back each year, say top Chinese scientists Travellers in protective suits are seen at Wuhan Tianhe International Airport after the lockdown was lifted in Wuhan, the capital of Hubei province and China's epicentre of the novel coronavirus disease (COVID-19) outbreak, April 10, 2020. (REUTERS/Aly Song )

China’s top scientists said the novel coronavirus will not be eradicated, joining a growing consensus around the world that the pathogen will likely return in waves like the flu. It is unlikely for the new virus to disappear the way its close cousin the SARS virus did 17 years ago, as it infects some people without causing obvious symptoms like fever. This group of asymptomatic carriers makes it hard to fully contain transmission as they can spread the virus undetected, a group of Chinese virus and medical researchers told reporters in Beijing at a briefing on Monday.

With SARS, those infected became seriously ill. Once they were quarantined from others, the virus stopped spreading. In contrast, China is still finding dozens of asymptomatic cases of the coronavirus every day despite bringing its epidemic under control. “This is very likely to be an epidemic that co-exists with humans for a long time, becomes seasonal and is sustained within human bodies,” said Jin Qi, director of the Institute of Pathogen Biology at China’s top medial research institute, the Chinese Academy of Medical Sciences.

A consensus is forming among top researchers and governments worldwide that the virus is unlikely to be eradicated, despite costly lockdowns that have brought much of the global economy to a halt. Some public health experts are calling for the virus to be allowed to spread in a controlled way through younger populations like India’s, while countries like Sweden have opted out of strict lockdowns.

Anthony Fauci, the director of US National Institute of Allergy and Infectious Diseases, said last month that Covid-19, the disease caused by the virus, could become a seasonal ailment as evidenced by cases now showing up in countries across the southern hemisphere belatedly as they enter their winter seasons.

Over 3 million have been sickened and over 210,000 killed in the global pandemic.

While some including US President Donald Trump have expressed hope that the virus’s spread will slow as the temperature in northern hemisphere countries rises in the summer, Chinese experts on Monday said that they found no evidence for this. “The virus is heat sensitive, but that’s when it’s exposed to 56 degrees Celsius for 30 minutes and the weather is never going to get that hot,” said Wang Guiqiang, head of the infectious diseases department of Peking University First Hospital. “So globally, even during the summer, the chance of cases going down significantly is small.”