This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Antibiotic treatment of choice for treating cholera in an adult is a single dose of: 
Select and explain. 
A. Tetracycline, B. Co-trimoxazole, C. Doxycycline, D. Furazolidone
C: Doxycycline
Answer: C: Doxycycline 
Explanation: Doxycycline - antibiotic of choice for adults only single dose suffices. TMP-SMX - antibiotic of choice for children. Furazolidone - antibiotic of choice for pregnant women. Ref: Park's Textbook Of Preventive And Social Medicine By K. Park, 19th Edition, Page 193; Park's Textbook Of Preventive And Social Medicine By K. Park, 18th Edition, Page 181