Organism multiplying and developing in the hosts is called as: (A) Cyclopropagative, (B) Cyclodevelopmental, (C) Developmental, (D) All
Answer is A. Ans. a (Cyclopropagative).(Ref. Park, PSM, 17th/pg.543)BIOLOGIC TRANSMISSIONTypeDefinitionE-g.PropagativeDisease agent undergoes no cyclical change, but multiplies in the body of the vector,Plague bacillus (rat flea)Cyclo-propagativeDisease agent undergoes cyclical change and multiplies in the body of the vector.Malarial parasite (Anopheline mosquito)Cyclo-developmentalDisease agent undergoes cyclical change, but does not multiply in the body of the vector,Filarial parasite (culex mosquito),Guineaworm (cyclops)