Biological transmission

Definition

Biological transmission is the process by which a pathogen is transmitted from an infected host to a new host via a biological vector, like mosquitoes or ticks. The pathogen undergoes development or multiplication within the vector before being transmitted.

5 Must Know Facts For Your Next Test

1. Vectors such as mosquitoes and ticks are crucial in biological transmission.
2. Pathogens often undergo part of their life cycle within the vector.
3. Malaria is an example of a disease spread through biological transmission by Anopheles mosquitoes.
4. Control of vector populations can significantly reduce the incidence of diseases spread through biological transmission.
5. Biological transmission involves complex interactions between the pathogen, vector, and host.

Review Questions

Related terms

Vector:

An organism that transmits pathogens from one host to another.

Mechanical Transmission: Transmission of pathogens via physical contact without involving development within the transmitting organism.

Reservoir Host: A primary host that harbors the pathogen with minimal effect on its own health and serves as a source for infection to other species.