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Whooping cough vaccine may lose its punch

Whooping cough vaccine may lose its punch

http://www.king5.com/health/childrens-healthlink/Whooping-cough-vaccine-may-lose-its-punch-173192331.html

Source: KING 5 TV

Dr. Wendy Sue Swanson discusses the effectiveness of the final pertussis booster, given from age 4 to 6. A recent study published in the New England Journal of Medicine found the effectiveness of the booster wanes. "What it looks like is that each and every year after the immunization is given, the protection, in a large group of patients, actually decreases," said Dr. Swanson.