The first step in the investigation of an epidemic is which of the following?: (A) Verification of diagnosis, (B) Confirmation of the epidemic, (C) Defining the population at risk, (D) Formulation of hypothesis
Answer is A. Verification of diagnosis is always the first step and writing repo is the last step of an epidemic investigation. Ref: Park's textbook of Preventive and Social Medicine, 21stedition, page-119