Domain	Definition
Health	The type species of the genus Influenzavirus A, B that causes influenza and other diseases in humans and animals. Antigenic variation occurs frequently between strains, allowing classification into subtypes and variants. Transmission is by aerosol (human and most non-aquatic hosts) or waterborne (ducks). (references)
Source: compiled by the editor from various references; see credits.

Thumbnail	Description & Credit
	Transmission electron micrograph of influenza A virus, early passage. Credit: CDC.
Source: pictures compiled by the editor from various references; see picture credits.

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-e-f-i-i-l-n-n-r-s-u-u-v-z"
	-5 letters: annualizes, influenzas, visualizer.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

INFLUENZA A VIRUS

Specialty Definition: INFLUENZA A VIRUS