WASHINGTON -- The surgeon general is warning Americans about the "urgent threat of health misinformation" amid the government's current push to boost stalling vaccination rates. Dr. Vivek Murthy's ...

A novel nasal booster approach may help close the gap between systemic vaccination and infection-blocking mucosal immunity, offering fresh insight into next-generation COVID vaccine strategies. Study: ...

Updated mRNA-1273 vaccine was effective against severe COVID-19 outcomes in older and high-risk adults during the 2024-2025 season.

A fourth dose of an mRNA COVID-19 vaccine could increase antibodies and provide more protection from the virus, according to a new study from Israel. Researchers released new preliminary data Monday ...

Pfizer on Friday committed to supply up to 40 million doses of its COVID-19 vaccine this year to a World Health Organization-backed effort to get affordable shots to poor and middle-income countries.