Impact of vaccination on epidemiology of diphtheria and pertussis
Whooping cough and diphtheria are vaccine preventable diseases.Diphtheria, due to Corynebacterium diphtheriae or Corynebactium ulcerans, two Gram positive bacteria, is a serious upper respiratory tract disease with high morbidity and mortality rates.Vaccination, via an acellular vaccine composed only of purified, detoxified diphtheria toxin, has si