Did COVID-19 start from a “lab leak”?

Uncertainty and Misinformation

A: We don’t know for sure where SARS-CoV-2 came from, but most evidence to date supports the natural “spillover” explanation (e.g. the virus jumped from animals to humans). There may never be a “smoking gun” for SARS-CoV-2 origins. Pandemic preparedness efforts should focus on preventing both natural and man-made spillovers of pathogens. It’s 3+ years