Regarding point source epidemic, false statement (s) is/are:: (A) Rapid rise & fall, (B) Only infection disease can cause, (C) Explosive, (D) Cases occur even after incubation period
Answer is B. Common source single exposure epidemics Disease agent is brief and essentially simultaneous, resultant cases all develop within one weak of the incubation period. (refer pg no:64 park text 23rd edition)