Cyclo propagative means:: (A) Only development, (B) Only multiplication, (C) No development and no multiplication, (D) M ul ti plication and development
Answer is D. Ref: Park 'Textbook of Preventive and Social Medicine', 22nd edition.Explanation:Biological transmission PropagativeOnly multiplication, eg - plague bacilli in flea, dengue virus in mosquitoCyclo developmentalOnly development eg- filariai parasite in mosquitoCylco propagativeMultiplication and development eg. malarial parasite in mosquito* Cylco - development cycle* Propagative - multiplication