WASHINGTON -- People with certain health conditions that make them moderately or severely immunocompromised may get a fourth mRNA COVID-19 shot, according to updated guidelines from the US Centers for ...

More than a year after its promised deadline to investors, drugmaker puts alarming results in federal government's "virtual ...

Researchers at University of Tsukuba have demonstrated that during Japan's COVID-19 booster vaccination campaign, online ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...

Real-world effectiveness with the recommended single dose of respiratory syncytial virus (RSV) vaccination dipped in older ...

The effectiveness of a single respiratory syncytial virus (RSV) vaccine dose declined among older adults, potentially suggesting the need for booster shots among this demographic. That is according to ...

The Food and Drug Administration today authorized both Pfizer and Moderna to give a second booster dose of their COVID-19 vaccines to individuals aged 50 and older and to those who are ...

SAN JOSE, Calif. -- San Jose Mayor Sam Liccardo announced a proposal Tuesday to require city employees to get a COVID-19 booster vaccination as a condition of employment. The proposal would also apply ...

Most US teens have received a dose of the meningococcal vaccine, yet uptake of the first dose and completion of the booster ...