Fig. 2

Epi curve of pertussis cases by date of onset of cough in Tork and Warkaye villages/kebeles, Mekdela district, South Wollo zone, Amhara, Ethiopia, from July 7th 2015 to October 25th 2015
Epi curve of pertussis cases by date of onset of cough in Tork and Warkaye villages/kebeles, Mekdela district, South Wollo zone, Amhara, Ethiopia, from July 7th 2015 to October 25th 2015