<prompt> Antibiotic treatment of choice for treating cholera in an adult is a single dose of -TetracyclineContrimoxazoleDoxycyclineFurazolidone  <response>: - a single oral dose of doxycycline 300mg for adults and 6mgkg for children under 15 years has been proved effective for chemoprophylaxis for cholera. Reference : Parks textbook of preventive and social medicine, 23rd edition, pg no:233 p 