Kayina, Vincent Prevalence and factors associated with pertussis among children ag ed 2 months to 12 years with persistent cough at Mulago National Refer ral Hospital / Vincent Kayina. - Kampala : Makerere University, 2014. - xiv, 59 leaves: ill; 30 cm. Thesis ( MMed, Paediatrics and Child Health) - Makerere University, 2014. Includes bibliographical references (p.30 -5 ). Subjects--Topical Terms: Whooping Cough.