Giving women the tetanus, diphtheria and acellular pertussis vaccine during their second or third trimester of pregnancy could avert about 1,012 annual pediatric cases of whooping cough, or about one-third of cases, mostly in 1- and 2-month-olds, a study in the journal Pediatrics showed. Prenatal vaccination lowered rates of infant hospitalization and deaths by 38% and 49%, respectively. Researchers found that vaccinating mothers after they gave birth as well as other family members also helped reduce the number of pertussis cases.
Prenatal Tdap vaccination can reduce infant pertussis cases
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