Social & Preventive Medicine While investigating an epidemic, search for more cases is continued till what period ? A Twice the incubation period of the disease since occurrence of the last case B Thrice the incubation period of the disease since occurrence of the case C The longest incubation period for the disease D Incubation period for the disease plus two standard deviations 💡 Explanation While investigating an epidemic, search for more cases is continued till what period ? ✓ Correct Answer: A. Twice the incubation period of the disease since occurrence of the last case