Fig. 2From: Pertussis outbreak investigation of Mekdela district, South Wollo zone, Amhara region, North-West EthiopiaEpi 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 2015Back to article page