California Battles Worst Whooping Cough Epidemic In Seven Decades

December 12, 2014 4:01 PM

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SAN DIEGO (AP) — California officials are battling the worst whooping cough epidemic to hit the state in seven decades as a recent rebound in cases raises questions about the effectiveness of the pertussis vaccine.

Doctors emphasize that the inoculation has led to fewer deaths than in the past and in instances where people do get sick, their illnesses aren't as severe. But California officials say the limited protection of the vaccine introduced in the 1990s has led to the rise in cases. Research has shown it ...

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