Social & Preventive Medicine The area is declared free of epidemic: A Till last secondary case recovers B No new case repoed for the incubation period of disease since the last case C No new case repoed for twice the incubation period of disease since the last case D No new case repoed for six months since the last case 💡 Explanation The area is declared free of epidemic: ✓ Correct Answer: C. No new case repoed for twice the incubation period of disease since the last case