<prompt> A village affected with epidemic of cholera, what is the lsl step which should to be taken in the village to decrease the chances of death from cholera:Safe water supply sanitationCholera vaccination to all individualsPrimary ChemoprophylaxisTreat everyone in the village with tetracycline  <response>: Ans. a Safe water supply sanitationRef K. Park 23rded. 232-33 Cholera is an acute diarrheal disease caused by Vibrio cholerae. I.P.-1-2 days First step in epidemic of cholera: Verification of diagnosis First line treatment of choice: water and electrolyte replacement. In the given question, safe water supply and sanitation should be the 1st step to decrease mortality from cholera.Also know Stool appearance of cholera: Rice watery stool Chemoprophylaxis of cholera: Tetracycline 500mg BID for 5 days. Drug of choice for cholera: Adults: Doxycycline 300 mg stat. Children: Cotrimoxazole 5mgkg BID for 3 days Pregnant female: Furazolidone 100mg QID for 3 days. 