<prompt> Tetracycline is used in prophylaxis of which of the following diseases?CholeraBrucellosisLeptospirosisMeningitis  <response>: Tetracycline is the drug of choice for chemoprophylaxis of cholera. Ref: Preventive and Social Medicine, by K.Park, 19th edition, Page 106, 193, 194, 141, 142; Harrisons Internal Medicine, 16th edition, Page 917, 991. 