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ANSWER 1

  1. False. In a classic case the illness begins with the catarrhal stage, which is the most contagious. This consists of non-specific symptoms such as coryza, conjunctival irritation and (slight) cough. After 7–10 days, the paroxysmal phase begins with the characteristic cough—a series of rapid forced expirations followed by a whoop. Fever is rare.1

  2. True. The disease is most severe and life threatening in this age group, …

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