A group of 18 scientists stated Thursday in a letter published in the journal Science that there is not enough evidence to decide whether a natural origin or an accidental laboratory leak caused the Covid-19 pandemic.
NYT
Another Group of Scientists Calls for Further Inquiry Into Origins of the Coronavirus
Researchers urge an open mind, saying lack of evidence leaves theories of natural spillover and laboratory leak both viable.
The new letter argued for a new and more rigorous investigation of virus origins that would involve a broader range of experts and safeguard against conflicts of interest.
NYT