Best mnemonic for Biological transmission

"P"ropagative--> the agent merely "P"ropogates(multiplies) in vector, but no change in form eg: "P"lague

"C"yclo"P"ropagative--> the agent "C"hanges in form and "P"ropagates (e.g Malaria parasite in mosquito) "CPM"

"C"yclo-"D"evelopmental--> Agent undergoes only "D"evelopment but no multiplication eg. "D"racunculiasis, microfilariasis