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In 1950 a whole-cell pertussis vaccine was in reported whooping cough mortality and morbidity. cough as a clinical problem and, in recent years, been performed. An outbreak of that between 81 and 93 per cent of children Were fully immunized by 13 mom suggest that, since its introduction, the whole-cell pertussis vaccine produced highly effective in controlling whooping cough. Hoivever, it was not introduced in Cape Town and was followed by a marked decline This resulted in reduced awareness of whooping no routine diagnostic tests for Borderelln pertussis have

187 per 100 000). In an investigation of 239 children hs of age. These findings in South Africa has been able to prevent a moderate scale outbreak, even in the presence of high vaccination levels.