Alternate host

Pronunciation
/AL-ter-nate HOST/
Category
Entomology
Singular
Alternate host
Plural
Alternate hosts

Definition

A secondary host organism that harbors a parasite or pathogen, especially when it is not the primary or usual host.

Etymology

From Latin 'alternus', meaning 'other' or 'alternate'.

Example

The mosquito Aedes aegypti is an alternate host for the dengue virus.

Related Terms

Usage Notes

Alternate hosts can play a significant role in the spread of diseases and parasites.