- Data Covid-19 USA — In a review of recent studies and comparisons to other outbreaks, a group of virologists contends that there is more evidence to support a natural spillover from animals to humans.
- Data Covid-19 USA — Talk of ‘gain-of-function’ research, a muddy category at best, brings up deep questions about how scientists should study viruses and other pathogens.
Shi Zhengli, a top virologist, said in a rare interview that speculation about her lab in Wuhan was baseless. But China’s habitual secrecy makes her claims hard to validate.
A scientific mission to China proposed further study for a number of topics. Critics and the director of the W.H.O. have weighed in as well.
Far more work is needed to understand how the pandemic began, the report says, but it is not clear that Beijing will cooperate. “We may never find the true origins,” an expert said.
How the corona pandemic could even come about is the question that is currently worrying many researchers. One possible approach is now provided by a study in which climate change, habitats and pangolins play key […]