N'ọtụtụ mba, mbelata n'iji ọgwụ mgbochi ụfọdụ eme ihe sochiri mmụba n'ọrịa na ọnwụ nke ọrịa ndị ahụ. Dabere na Centers for Disease Control and Prevention, ọ dị mkpa ka a nọgide na-enwe oke mkpuchi ọgwụ mgbochi iji gbochie nlọghachi nke ọrịa ndị a kpochapụrụ. Pertussis ka bụ nnukwu nsogbu ahụike na mba ndị na-emepe emepe, ebe a na-emeghị ịgba ọgwụ mgbochi ọtụtụ; Òtù Ahụ Ike Ụwa na-eme atụmatụ na ọ kpatara ọnwụ 294,000 na 2002. Ajụjụ: Ọnwụ ole ka pertussis kwuru na 2002?
Mmadụ 294,000