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
The best approach to prevent cholera epidemic in a community is 
Select and explain. 
A. Mass chemoprophylaxis with tetracycline, B. Vaccination of all individuals, C. Health education, D. Safe water and sanitation
C: Health education
Answer: C: Health education 
Explanation: • Pattenkoffer advocated for improving local sanitary conditions as ‘the best way to prevent or stop cholera epidemics.’
• Robert Koch believed that quarantine and disinfection can only prevent cholera.