Which of the following is an example of a vehicle (fomite) in indirect transmission?

• A. Infected Person
• B. Airborne Droplet
• C. Fomite (inanimate object)
• D. Mosquito Bite

Answer: (C)

Indirect transmission via a vehicle happens when a non-living object becomes contaminated with pathogens and transfers them to someone else. The best example is an inanimate object that carries the microbes—a fomite. When a person touches a contaminated surface and then touches their mouth, nose, or eyes, or handles food or objects that others touch, infection can spread.

The other options don’t fit this idea: an infected person is a source of infection, not a non-living vehicle; droplets expelled from an infected person can reach someone else directly rather than via a surface; and a mosquito bite involves a living vector, not an object carrying pathogens.