<prompt> Measures involved in sentinel surveillance include all of the following except:-Identifying missing cases in notification of diseasesIdentifying new cases of infectionIdentifying old and new casesIdentifying cases free of disability  <response>: Sentinel surveillance: It is a method for identifying the missing cases thereby supplementing the notified cases. It is extrapolated to entire population, to estimate disease prevalence in total population. It minimizes repoing bias simplifies feedback of information to the providers. 