Q Which of the following is characteristic of a single exposure common vehicle outbreak?
A. Frequent secondary cases
B. Severity increases with increasing age
C. Explosive
D. Cases occur continuously beyond the longest incubation period
Explanation
Ans : c. Explosive
Single exposure common vehicle outbreak : Also known as Point Source Epidemic, where exposure to disease agent is brief and essentially simultaneous
– Epidemic Curve rises and falls rapidly, with no secondary waves
– Explosive: Clustering of cases within a narrow interval of time
– All cases develop within one incubation period of disease
( Ref : Park 22nd /ed p62 )
A. Frequent secondary cases B. Severity increases with increasing age C. Explosive D. Cases occur continuously beyond the longest incubation period Explanation
Ans : c. Explosive
Single exposure common vehicle outbreak : Also known as Point Source Epidemic, where exposure to disease agent is brief and essentially simultaneous
– Epidemic Curve rises and falls rapidly, with no secondary waves
– Explosive: Clustering of cases within a narrow interval of time
– All cases develop within one incubation period of disease
( Ref : Park 22nd /ed p62 )