The difference between contamination and infection is that in infection-
Infectious agent is on body surface or on nonhuman objects
Infectious agent is in the body of human
Ahropods on the body surface
None
Ans. is 'b' i.e., Infectious agent is in the body of human o Infection --> Infectious agent in the body. o Contamination ---> Infectious agent on body surface or on objects. o Infestation --> Ahropods on body surface.