Point shource epidemic is -
Short term fluctuation
Periodic fluctuation
Long term fluctuation
Secular trend
Ans. is 'a' i.e., Short term fluctuation * Point source (single exposure) epidemic is short term fluctuation.* There are three kinds of time trends or fluctuations in disease occurenceA. Short term fluctuations - epidemics.B. Secular trends or long term fluctuations.C. Periodic fluctuation.
Epidemiology