Photo by Linda Harms via Shutterstock

The avian influenza appears to be winding down across the United States, following a precipitous drop off in reported cases since April. So far, zero commercial flocks and just seven backyard flocks have reported cases in July. 

Since the outbreak began in January 2022, more than 40 million birds across 201 counties have been killed, either by the virus itself or intentionally culled to prevent further spread of the highly pathogenic disease. Table egg layers, or domesticated chickens grown primarily to produce eggs for human consumption, represent 30 million of the total affected population.

Other affected groups include commercial chickens, turkeys, and ducks grown for meat sale, breeders, gamebirds, hobbyists’ flocks, petting zoo birds, and wild birds.

Stacker compiled statistics on the avian influenza in Oregon using data from the U.S. Department of Agriculture. The data is current as of July 24, 2022.

– Number of birds affected in Oregon: 930
— #24 most birds affected among all states
— 0.0% of all birds affected nationwide

Counties with the most birds affected in Oregon
#1. Lane: 450 birds affected (48.4% of all cases in Oregon)
#2. Deschutes: 260 (28.0%)
#3. Linn: 130 (14.0%)
#4. Polk: 90 (9.7%)

States with the most birds affected
#1. Iowa: 13.4 million
#2. Nebraska: 4.9 million
#3. Pennsylvania: 4.2 million
#4. Colorado: 3.6 million
#5. Wisconsin: 3.0 million


Stacker is a news organization that produces and distributes data journalism to the world’s news organizations. Founded in 2017, Stacker combines data analysis with rich editorial context, drawing on authoritative sources and subject matter experts to drive storytelling. This article has been republished pursuant to a CC BY-NC 4.0 License.