The unusual cases of pneumonia began to appear in midwinter, in China. The cause, researchers would later learn, was a coronavirus new to science. By March, the infection began to spread to other ...

Viruses are ancient. They have been infecting animals, our ancestors included, for hundreds of millions of years before the first humans ever showed up. And the legacy of those primordial infections ...

Scientists present evidence of a newly discovered tick-borne virus that can infect humans and potentially invade the brain, in some cases. When you purchase through links on our site, we may earn an ...