SAN FRANCISCO -- It's possible the amount of sleep you're getting and the stress you're under could impact your COVID vaccine, meaning the strength and durability of the vaccine may have more to do ...

Stanford researchers develop breakthrough nasal spray vaccine that could potentially protect against a variety of infections, ...

Vaccines have traditionally worked by teaching the immune system to recognize a specific virus or bacterium—in effect, ...

Updated 2024-2025 COVID-19 vaccines significantly reduced the risk for hospitalization and severe outcomes despite the emergence of new viral lineages.

NEW YORK -- Two encouraging studies suggest that people who recovered from COVID-19 had immune responses to the virus long after antibodies faded, even up to one year later. The findings may help put ...

Emergency Care Reduction: The study of the 2024–2025 vaccine showed a 29.3% effectiveness (95% confidence interval [CI], 19.1 to 39.2) against Covid-19–related ED visits, preventing approximately 18.3 ...

Most people have put the COVID-19 pandemic behind them. Infections, vaccinations, or a combination of both have bolstered people's immunity, and while new variants continue to pop up, getting sick ...

Detailed immune profiling in long-term care populations reveals that SARS-CoV-2 vaccines and infections drive powerful virus-specific responses while leaving lifelong common cold immunity largely ...

COVID-19 can cause a long list of health issues, including flu symptoms, respiratory problems and even organ damage, according to medical experts — but a new study suggests that the virus could have a ...