The trove of documents includes two previously unpublished grant proposals that were funded by the National Institute of Allergy and Infectious Diseases, as well as project updates relating to the EcoHealth Alliance’s research, which has been scrutinized amid increased interest in the origins of the pandemic…

One of the grants, titled “Understanding the Risk of Bat Coronavirus Emergence,” outlines an ambitious effort led by EcoHealth Alliance president Peter Daszak to screen thousands of bat samples for novel coronaviruses. The research also involved screening people who work with live animals. The documents contain several critical details about the research in Wuhan, including the fact that key experimental work with humanized mice was conducted at a biosafety level 3 lab at Wuhan University Center for Animal Experiment — and not at the Wuhan Institute of Virology, as was previously assumed. The documents raise additional questions about the theory that the pandemic may have begun in a lab accident, an idea that Daszak has aggressively dismissed…

Alina Chan, a molecular biologist at the Broad Institute, said the documents show that the EcoHealth Alliance has reason to take the lab leak theory seriously. “In this proposal, they actually point out that they know how risky this work is. They keep talking about people potentially getting bitten — and they kept records of everyone who got bitten,” Chan said. “Does EcoHealth have those records? And if not, how can they possibly rule out a research-related accident?”