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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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In cyclo-propagative transmission, the disease agent undergoes
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The correct answer is  Biological transmission of vector borne diseases: Cyclo-Propagative : The agent changes in both form and number, eg: Malaria parasite in mosquito Propagative : The agent merely multiplies in vector, but no change in form, eg: Plague bacilli in rat fleas Cyclo-Developmental : The disease agent undergoes only development but no multiplication, eg: Microfilaria in mosquito Ref : Park&;s Textbook of preventive and social medicine; 24th edition; Pg no: 98