The drug regulator has cleared Serum Institute to begin Phase III trials for a 2-in-1 covid-flu vaccine while simultaneously approving an Omicron-specific booster, marking a transition toward seasonal ...

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

There remains much we don’t know about long covid, including its origins. It’s a complex condition likely caused by more than one thing, including a dysfunctional immune response to the earliest covid ...

Maternal SARS-CoV-2 infection during pregnancy does not appear to increase the risk for neurodevelopmental delays in children through age 18 months.