In cyclo-propagative transmission, the disease agent undergoes
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
Only development
Only multiplication
Change in form and numbers
No change
Communicable diseases