Sen. Chuck Schumer, the Senate minority leader, accused Health and Human Services Secretary Robert F. Kennedy Jr. of gutting ...

Some antibodies neutralize the virus effectively, while others bind only weakly. Pinpointing exactly which parts of a virus ...

Emergency vaccination programmes – rolled out in response to outbreaks of five major diseases – are believed to have reduced deaths by around 60% over a period of 23 years, according to a new study.A ...