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

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

Toxoplasma, face mites and pinworm live in most human bodies without symptoms. A biologist explains what each one reveals ...

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