Pertussis immunization in the global pertussis initiative international region: recommended strategies and implementation considerations.


Despite widespread immunization programs in most countries, pertussis disease continues to be a threat to public health. In particular, there has been a resurgence of pertussis disease in older children, adolescents and adults, creating a reservoir of infection, which poses a significant threat to infants who are either unimmunized or incompletely immunized… (More)


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