<prompt> The most impoant function of sentinel surveillance is -To find the total amount of disease in a populationTo plan effective control measuresto determine the trend of disease in a populationTo notify disease  <response>: Ans. is a i.e., To find the total amount of disease in a population The sentinel data is extrapolated to the entire population to estimate the disease prevalence in the total population. o So, it helps in estimating the total amount of disease in a community. Advantages of sentinel surveillance i Repoing Bias is minimized ii Feed-back information is simplified 