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Is 'Improved' Vaccine Causing Whooping Cough Outbreaks?

Current shot may be less effective than earlier one, experts suggest

Vaccination rates among older children and adolescents are high, but the rate for adults is only about 7 percent, he said.

More information

For more information on whooping cough, visit the U.S. Centers for Disease Control and Prevention.

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Tags:

respiratory problems,

vaccines,

children's health,

CDC