Mechanical vector

Definition

A mechanical vector is an organism that transmits pathogens from one host to another without being infected itself. It often involves the physical transfer of infectious agents on the vector's body surface.

5 Must Know Facts For Your Next Test

1. The most common examples of mechanical vectors are flies and cockroaches.
2. Mechanical vectors do not undergo any part of the pathogen's life cycle.
3. They can transmit bacteria, viruses, and other pathogens by physical contact or through contaminated surfaces.
4. Unlike biological vectors, mechanical vectors do not play a role in the development or multiplication of the pathogen.
5. Preventative measures include sanitation and controlling vector populations.

Review Questions

• What is the primary difference between a mechanical vector and a biological vector?
• Name two common insects that act as mechanical vectors.
• How do mechanical vectors transmit pathogens to new hosts?

Related terms

Biological Vector: An organism that transmits pathogens and within which some portion of the pathogen's life cycle occurs.

Fomite: An inanimate object that can be contaminated with infectious agents and facilitate their transmission.

Pathogen: A microorganism that can cause disease in its host.