From a persistent sore throat that feels like razor blades to severe muscle aches, discover some unusual signs of the new ...

A new COVID-19 strain, NB.1.8.1—dubbed “Nimbus”—is quickly becoming one of the most common in the U.S., now accounting for 37% of cases, according to the CDC. First identified in China, the highly ...

A new COVID-19 variant marked by a painful “razor-blade throat” symptom is spreading rapidly in the United States. The strain ...

The FDA has expanded existing warnings on the two leading COVID-19 vaccines about a rare heart side effect mainly seen in young men.