Re-emergence of diphtheria and pertussis: Implications for Nigeria

► The global incidence of pertussis and diphtheria has increased significantly. ► Infant cases linked to adult and adolescent sources. ► Nigeria has limited surveillance and diagnostic capacity for both diseases and diphtheria antitoxin is not accessible. ► DPT 3 coverage is low. The potential for epidemics exists. ► Strengthening of routine immunization and the possible introduction of booster doses are required.