Moderna’s Omicron-adapted COVID-19 vaccines appear to reduce the risk of hospitalization and death in adults who are not pregnant or have a weakened immune system, according to a rapid review ...

The first known meta-analysis of how SARS-CoV-2 variant type and time since infection influence long-COVID symptoms ties Omicron to brain fog and paresthesia (numbness and tingling), while earlier ...

NEW YORK (WABC) -- New COVID-19 cases are declining or stable in all 50 states, prompting several northeast states, some among the hardest hit, to announce plans to lift mask mandates in schools. But ...

Immunocompromised status remains a significant risk factor for in-hospital mortality in COVID-19, particularly among patients with pneumonia.

People hospitalized with Covid-19 have doubled since early May as the even more transmissible omicron BA.5 subvariant has caused another wave of infection across the country, U.S. health officials ...