Region Incubation Period Period of communicability Modes of Transmission Sign and Symptoms Control Measures &/or Public Health Response Reference
Whole Body 6-20 days, usually 9-10 days Early stages of 21 days after ouset of euplosine congling spells in untreated patients or 5 days after imitation of treatment with appropriate antibiotics. Person to person by direct contact with discharges from resperalory mucons membranes of infected person probably by airborne droplet spread. Early mild upper respiratory symptoness with cough; usually progresses with 1-2 weeks to senere euplosine coughing spells after with whoop and followed by womtting. Most senere during first year of life. Exclude from school, daycare workplace until 5 days after imitiation of appropriate antibiotic therepy or for 21 days after cough ouset if intreated. Prophylactic antibiltic treatment of all house hold contacts. Confirm by nasopharyngeal cu Christie,AB(1980) Infections diseases: Epidemiology and clinical practice ,3rt ed, Churchill Livingstone .Gray James A (1981) , Medicine International,3,112.