bird flu
noun
: avian influenza
specifically
: severe often fatal influenza A caused by strains of a subtype (H5N1) of the causative orthomyxovirus (Alphainfluenzavirus influenzae) that have produced epidemics in domestic birds especially in Asia with sporadic associated human infections
Examples of bird flu in a Sentence
Recent Examples on the Web
In recent years, bird flu outbreaks have caused significant economic losses across the country.
—
Stephen Underwood, Hartford Courant, 7 Mar. 2026
Wisconsin saw its first bird flu detection in a dairy herd in Dodge County in December.
—Madeline Heim, jsonline.com, 6 Mar. 2026
The Texas Parks & Wildlife Department issued a wildlife health alert as avian influenza, or bird flu, continues spreading among wild birds in parts of the Panhandle.
—Faith Bugenhagen, Austin American Statesman, 27 Feb. 2026
For example, the slide in egg prices is largely a result of easing impacts from a bird flu outbreak.
—Alex Harring, CNBC, 26 Feb. 2026
See All Example Sentences for bird flu
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Stephen Underwood, Hartford Courant, 7 Mar. 2026
Wisconsin saw its first bird flu detection in a dairy herd in Dodge County in December.
—Madeline Heim, jsonline.com, 6 Mar. 2026
The Texas Parks & Wildlife Department issued a wildlife health alert as avian influenza, or bird flu, continues spreading among wild birds in parts of the Panhandle.
—Faith Bugenhagen, Austin American Statesman, 27 Feb. 2026
For example, the slide in egg prices is largely a result of easing impacts from a bird flu outbreak.
—Alex Harring, CNBC, 26 Feb. 2026
See All Example Sentences for bird flu
Cite this Entry
“Bird flu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bird%20flu. Accessed 13 Mar. 2026.
Copy CitationMedical Definition
bird flu
noun
: avian influenza
specifically
: severe often fatal influenza A caused by strains of a subtype (H5N1) of the causative orthomyxovirus (Alphainfluenzavirus influenzae) that have produced epidemics in domestic birds especially in Asia with sporadic associated human infections
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