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Source: http://articles.chicagotribune.com/...10_1_acellular-vaccine-dtap-pertussis-vaccine
Whooping cough vaccine protection wanes
March 11, 2013|Genevra Pittman | Reuters
NEW YORK (Reuters Health) - Protection against whooping cough starts to weaken a few years after preschool children get their final diphtheria, tetanus and pertussis (DTaP) shot, a new study confirms.
The Centers for Disease Control and Prevention (CDC) recommends a booster shot at age 11 or 12. But researchers found that slightly younger kids may be at risk of developing whooping cough before then, as their original immunity declines...
Whooping cough vaccine protection wanes
March 11, 2013|Genevra Pittman | Reuters
NEW YORK (Reuters Health) - Protection against whooping cough starts to weaken a few years after preschool children get their final diphtheria, tetanus and pertussis (DTaP) shot, a new study confirms.
The Centers for Disease Control and Prevention (CDC) recommends a booster shot at age 11 or 12. But researchers found that slightly younger kids may be at risk of developing whooping cough before then, as their original immunity declines...