Whooping Cough Study May Offer Clue on Surge 87% Vaccinated Involved In Whooping Cough Outbreak Acellular pertussis vaccines fail to prevent infection and transmission 91% Fully Vaccinated Involved in Pertussis Outbreak Pertussis Whooping Cough TDap Vaccine Inserts How Vaccine Shedding […] ↓ Read the rest of this entry…