<prompt> Carries are impoant in all the following except ?PolioTyphoidMeaslesDiphtheria  <response>: Ans. is c i.e., Measles o Though incubatory carrier state occurs in measles, it is not so impoant. The only source of infection is a case of measles. Carriers are not known to occur. - Park o In all other three disease, carrier state is impoant in transmission of infection. 