SARS-CoV-2 has been evolving the ability to evade the immune system about twice as fast as the fastest-evolving flu virus. It averages more than a dozen significant changes every year.

Five years after the World Health Organization declared a global pandemic, there has been progress — and backsliding in the ...

All the latest breaking news on United States. Browse ibtimes archives of photos, videos and articles on United States.

COVID-19 vaccination in early pregnancy (≤20 weeks of gestation) is not associated with increased prevalence of major ...

The lack of available medications in the United States for COVID post-exposure prophylaxis leaves household members in close contact with someone who is infected vulnerable to developing COVID ...

Five years after the World Health Organization declared a global pandemic, there has been progress — and backsliding in the ...

But what if you could avoid getting COVID-19 altogether? That’s the potential promise of a new study on a drug made by ...

A Democratic member of Congress has emerged as a vocal defender of the status quo at the National Institutes of ...

A study led by the University of Texas Health Science Center at San Antonio found women had a 31% greater risk of developing ...

In pediatric patients aged 6 months to 5 years, the VE of mRNA-1273 against symptomatic infection was modest after a single dose and strong after a second dose.

The CDC has issued interim effectiveness estimates for the 2024-2025 seasonal influenza and 2024-2025 COVID-19 vaccines.

New findings add weight to the theory that COVID-19 originated at the Wuhan Institute of Virology. Experts point to lax ...