Zoonoses

Definition

Zoonoses are infectious diseases that are transmitted between animals and humans. These diseases can be caused by viruses, bacteria, parasites, or fungi.

5 Must Know Facts For Your Next Test

1. Viruses responsible for zoonoses can include highly pathogenic agents like rabies and Ebola.
2. Zoonotic viruses often require vectors such as mosquitoes or ticks for transmission to humans.
3. Approximately 60% of emerging infectious diseases in humans are zoonotic in origin.
4. The study of zoonoses is crucial for understanding and preventing pandemics.
5. Animal reservoirs play a critical role in the maintenance and spread of zoonotic viruses.

Review Questions

• What percentage of emerging infectious diseases in humans are zoonotic?
• Name two viral diseases that are considered zoonoses.
• Why is the study of animal reservoirs important in the context of zoonoses?

Related terms

Vector: An organism that transmits a pathogen from one host to another.

Reservoir Host: An animal species that harbors a pathogen without suffering serious illness, acting as a source of infection.

Emerging Infectious Disease: A disease that has recently increased in incidence or geographic range.