WHO experts: "Window is closing" on study into origins of COVID-19

In an essay in the journal Nature, experts studying the origins of COVID-19 for the World Health Organization (WHO) warned that the study has stalled and that the "window of opportunity" is closing to trace the virus' origins.

Why it matters: According to the scientists, "any [further] delay will render some of the studies biologically impossible," hampering understanding of the origins of COVID-19.

Understanding the origins of COVID-19 and how it spread can help prevent future pandemics.