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    Did COVID-19 leak from a lab?

    Live
    science

    The debate over SARS-CoV-2 origins — natural zoonotic spillover vs. Wuhan Institute of Virology lab leak.

    Scope: COVID-19 pandemic origins, virology research

    Current Prediction

    Current Prediction
    75%
    Conf88%
    Vel
    fast

    Evolution

    Probability
    Confidence

    Current Assessment

    The origin of SARS-CoV-2 remains a subject of intense debate, primarily revolving around two main hypotheses: natural zoonotic spillover from an animal host or a lab leak from the Wuhan Institute of Virology (WIV). While early consensus leaned towards natural origin, subsequent investigations and new information have led to a re-evaluation, with both theories still considered plausible by various scientific and intelligence communities. The lack of a definitive intermediate host for a natural spillover and the WIV's research on bat coronaviruses near the pandemic's epicenter fuel the lab leak hypothesis.