Low-Dose Polio Vaccine Effective

A new study showed that giving just one-fifth the usual dose of the polio vaccine may protect babies against the virus nearly as well as a full dose, as long as it is injected just beneath the skin, according to a recent study.

CDC Recommends Universal Flu Vaccination

The Centers for Disease Control and Prevention has issued a comprehensive update on seasonal flu vaccination, which includes the new universal recommendation for everyone except infants younger than 6 months old.

MMRV Vaccine Increases Fever and Seizure Risk

A recent study shows measles-mumps-rubella-varicella (MMRV) vaccination is associated with an increased risk of fever and seizure in young children, above that already associated with measles-containing vaccines.

New, Safer Smallpox Vaccine Stockpiled

The U.S. government has begun to stockpile a new version of the smallpox vaccine that is designed to close a gap that left millions vulnerable to a bioterror attack.