Whooping Cough Vaccine Wanes Over Time, Kaiser Permanente Vaccine Study Center Reveals
t’s news that’s certain to ignite debates over vaccines again: researchers say that the childhood immunization against whooping cough fades substantially over time, leaving even fully vaccinated children vulnerable to infection. Weakened protection may be a major contributor to the current outbreak of whooping cough, or pertussis, in the U.S. — the largest in decades — the new study suggests.