<prompt> You are conducting a study on a new type of infectious disease and find that the case fatality rate is high. It means that:The disease is highly infectiveThe disease has a sho incubation periodThe disease is caused by a virulent organismAll the above  <response>: Case fatality rate Total number of deaths due to a paicular diseaseTotal number of cases of the same disease It is a measure of the killing power of a disease and is closely related to the virulence. Ref: Park, Edition 21, Page - 54. 