In patients with COVID-19, preexisting immunity and Omicron infection were associated with reduced disease severity and upper respiratory symptom presentation.

Key Takeaways Updated COVID-19 vaccines have been effective against new coronavirus variantsThe vaccines lowered risk of ...

Investigators concluded that individuals with comorbidities experienced higher risks of severe COVID-19 outcomes during the ...

A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about ...

Vermont has the second lowest state fatality rate in the US (148.2 per 100K; Hawaii 113.6/100K). Mississippi (465.8/100K) and ...

A new multi-state study led by the Centers for Disease Control and Prevention's (CDC) VISION Network—including Regenstrief ...

Recent vaccination announcements have led to some confusion. Four physicians weigh in on who should get vaccinated and when ...

Here’s how one of the well-laid plans of Health and Human Services Secretary Robert F. Kennedy Jr. went blooey.

The COVID vaccines aren’t approved for infants younger than ... spontaneous abortion, seizures and hospitalization. Other than pain at the injection site, fainting and other transitory conditions ...

Alberta's decision to reduce access to publicly funded COVID-19 vaccines so far appears to set the province on a different ...

Following discharge for COVID-19 hospitalization, county-level social deprivation does not affect long-term cardiovascular risk.