Omicron: How worried should we be? Omicron symptoms: Is a runny nose a cold or Covid? Vaccines help teach the body how to ...

A third dose of COVID-19 vaccine offered essential workers some protection from developing long COVID during Omicron variant ...

A total of 438 confirmed and probable cases of meningococcal disease were reported in 2023, the most US cases reported since ...

Booster doses of the original monovalent COVID-19 vaccine are associated with lower incidence of symptoms in health care personnel 6 weeks postinfection.