We don't know with 100% certainty where SARS-CoV-2 first came from or how it first infected humans. But not all options are equally likely.
A new bill introduced into the US Senate claims to make us safer. Instead, it would destroy all virology research, and for no real cause.
SARS-CoV-2 first emerged in humans in 2019. Despite much noise generated by lab leak proponents, the evidence indicates a natural origin.
