<prompt> Which of the following does not show an incubatory carrier state?PolioDiphtheriaMeaslesCholera  <response>: Incubatory carriers Can transmit the agent during the incubation period before clinical illness begins. Eg:Measles, Mumps, Polio, Peussis, Influenza, Diphtheria and Hepatitis B In cholera, convalescent carriers are seen. 