What we’ve learned about Covid-19 since the pandemic

Here’s what we’ve learned – and how our understanding has evolved – since the earliest cases of the novel coronavirus were ...

Evolutionary history may help explain why some people develop more severe COVID-19 than others

Every time a virus invades a person, it collides with thousands of years of human history. A study led by researchers at the ...
KPBS

Animal spillover? Lab leak? What the science says about the origins of COVID-19

The release of Dr. Anthony Fauci's pandemic diaries has rekindled the debate over the origins of SARS-CoV-2. Here's how ...