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Topic: epidemic

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July 19, 2012 at 11:21 AM

Pertussis vaccines may wear off sooner than thought, officials say

From Staff Reporter Kibkabe Araya: A rise in whooping cough cases among teens suggests that the pertussis vaccine may be wearing off sooner than expected, officials from the Centers for Disease  Control and Prevention said Thursday. After Washington state declared an epidemic in April, the CDC sent investigators here to learn the reason for the spike in cases. The investigation revealed a surprising…

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