<p>Globally, around 24.1 million pertussis cases and 160,700 deaths from pertussis were reported in children less than five years of age in 2014. The African region contributed the leading proportion with 7.8 million (33%) cases and 92,500 (58%) deaths. The aim of this investigation was done to verify the existence of an outbreak and to identify factors contributed for the occurrence of pertussis outbreak</p>