<prompt> Which of the following carriers received source of infection from other carriers is called -Incubatory carrierConvulescent carrierHealthy carrierChronic carrier  <response>: Incubatory carriers They are potential patients. Since then incubation period of cholera is sho1-5 days ,incubatory carriage is of sho duration. Park;s textbook of preventive and social medicine,K.Park,23rd edition,page no:230 p 