This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
Which of the following is the drug of choice for chemoprophylaxis of cholera - 
Select and explain. 
A. Tetracycline, B. Doxycycline, C. Furazolidone, D. Cotrimoxazole
A: Tetracycline
Answer: A: Tetracycline 
Explanation: Ans. is 'a' i.e., Tetracycline o Tetracycline is the drug of choice for chemoprophylaxis.InfectionChemoprophylaxis (DOC) InfectionChemoprophylaxis (DOC)o Cholera-TetracyclineMeningococci-Rifampicin (sulfadiazineo Plague-Tetracycline -if strain is sensitive)o P.carinii-CotrimoxazoleDiphtheria-Erythromycino Whooping cough-ErythromycinBacterial conjuctivits-Erythromycin ointmento Toxoplasmosis-CotrimoxazoleTB-INHo Influenza-AmantadineMAC-Ciarithromycin/Azithromycino Rickettsia-TetracyclinesMalaria-Chloroquineo Bird flu-Oseltamivir - o Gonorrhoes/syphilis-Procaine penicillin -