A study published last week suggests that, if vaccine uptake continues to decline, measles will soon be endemic again in the ...

While the Salk vaccine mostly eliminated polio in Virginia, a surprise outbreak led to a new push for immunization in ...

Salk’s polio vaccine (TIME, Mar. 29) seeped down to the grass roots. Said the school’s principal, Sid Clark: “The children understand that something pretty important is being done.

Officials say Pakistan has launched a weeklong second nationwide vaccination campaign to protect 45 million children from ...