Question

vector contact involves contact with __________. a. an infected surface b. contaminated water c. an infected organism d. a carrier organism

Explanation:

Vector contact is a mode of disease transmission. A vector is an organism that can carry and transmit pathogens. For example, mosquitoes can be vectors for diseases like malaria. When we talk about vector contact, it specifically involves contact with a carrier organism (the vector) that can pass on the pathogen. An infected surface (A) is more related to fomite - borne transmission. Contaminated water (B) is water - borne transmission. An infected organism (C) could be a direct host - to - host contact in some cases (like in some animal - to - animal or human - to - human direct contacts), but vector contact is about the carrier (vector) organism.

Answer:

D. a carrier organism