About 1 in 4 American adults got a covid vaccine shot during the 2024-25 virus season, a fraction health care experts warn could be smaller this year as millions wrestle with conflicting advice from ...

Year-to-year effectiveness fluctuates based on how well vaccines match circulating strains, ranging from 20% to 30% in ...

Vaccine effectiveness against COVID-19 infection dropped from 91% to 66% once the delta variant accounted for the majority of circulating virus, according to a study published Tuesday by the U.S.

The fall COVID-19 vaccine season is starting slowly for Pfizer, with U.S. sales of its Comirnaty shots sinking 25% after ...

Stratus and Nimbus have similar symptoms to previous variants including a fever, cough and runny nose, but the Nimbus variant ...

COVID-19 viral activity was high in the United States during the first week of September, according to fresh data from the Centers for Disease Control and Prevention. Some regions of the United States ...

Several states have issued their own guidance about COVID-19 vaccines since the FDA released its 2025-2026 formula approvals on Aug. 27, significantly restricting who can access the vaccines for the ...

The US Centers for Disease Control and Prevention signed off on a recommendation that patients must consult a health care provider to get a Covid-19 vaccine, although they don’t necessarily need a ...

Nassau and Suffolk residents trail the statewide averages for both COVID-19 and influenza vaccines, according to new state ...

Russia's state statistics service on Monday reported 162,429 deaths related to COVID-19 in Russia last year, a tally that is ...

The Canadian dollar strengthened against its U.S. counterpart on Monday as promising results from a COVID-19 vaccine trial ...