“Zombie” COVID-19 fragments linger for some, causing severe disease outcomes, new research reveals A new finding could be the reason why some people have long COVID or die from SARS-CoV-2 ...

Health workers fight Ebola in Congo despite threats of violence 02:27. Eleven people have died in Rwanda from the highly contagious Marburg virus, and 36 cases have been confirmed, the country's ...

Here's what to know about the virus' symptoms and how it spreads. This strain of the virus is known to be more severe, but it’s behaving differently from its usual patterns.