Genetic Study Retraces Covid’s Origins in Bats

As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got its start, like a previous one, in the wildlife trade.

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Trump Executive Order Restricts ‘Gain of Function’ Research on Pathogens

Scientists have long debated the merits and risks of tinkering with viruses and bacteria, which the president claims caused the coronavirus pandemic.

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C.I.A. Now Favors Lab Leak Theory to Explain Covid’s Origins

A new analysis that began under the Biden administration is released by the C.I.A.’s new director, John Ratcliffe, who wants the agency to get “off the sidelines” in the debate.

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