US and Chinese researchers team up for hunt into Covid origins
Scientists co-operate on search for Covid-19 origins despite charges Beijing is withholding data
US scientists are working with China to investigate the origin of coronavirus, despite criticism from the Trump administration that Beijing is failing to co-operate with outsiders to stem the disease.
Ian Lipkin, director of the Center for Infection and Immunity at the Mailman School of Public Health at Columbia University, said he was working with a team of Chinese researchers to determine whether coronavirus emerged in other parts of China before it was first discovered in Wuhan in December.
The effort relies on help from the Chinese Centers for Disease Control and Prevention.
“The China CDC is interested in learning as much as it can about the origins [of] these types of viruses,” Prof Lipkin, a virologist who worked on the 2003 Sars and 2012 Mers coronavirus outbreaks and advised on the 2011 pandemic film Contagion, told the Financial Times. “We share whatever we learn with the entire scientific community.”
Prof Lipkin, who has developed longstanding relationships with Chinese officials since he helped develop rapid testing for Sars in 2003, visited China earlier this year to discuss responses to Covid-19. He met premier Li Keqiang, and also received an award, his second from China.
Lu Jiahai, a professor at the Public Health School of Sun Yat-sen University in Guangzhou and Prof Lipkin’s research partner in China, told the FT that China CDC had helped him liaise with hospitals and local CDCs across the country. This was to access nationwide blood bank samples taken from pneumonia patients so the group could study whether coronavirus had been present in the population before it was detected in Wuhan.
“We are working across regions and departments to trace the origin of the virus,” he said, adding the study began in early February and may produce results later this year.
Prof Lu said the problem with existing research on coronavirus was that it depended overwhelmingly on cases reported by hospitals, but that some people may have been infected with the virus and later developed antibodies before anyone was aware of the disease.
“A critical part of our work, which we conducted with the help of Chinese CDC, is to test blood samples of pneumonia patients nationwide in December, November or even earlier,” he said. He added that it was “very important” to study earlier infection cases given indications between 30 to 50 per cent of virus carriers do not show symptoms.