Purpose of sentinel surveillance is -: (A) To know total number of cases, (B) Health planning, (C) Prevention of disease, (D) To know natural history of disease
Answer is A. Ans. is 'a' i.e., To know total number of cases o The sentinel data is extrapolated to the entire population to estimate the disease prevalence in the total population. So, it helps in estimating the total amount of disease in a community.