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M
Nation / Place

Midwest

US region of 10 states, significant in poultry and dairy disease outbreaks.

Last refreshed: 12 May 2026

Timeline for Midwest

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Common Questions
Which states are in the US Midwest?
The Midwest comprises Indiana, Illinois, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.Source: geographic reference
Why is the Midwest important for animal disease surveillance?
The Midwest is the agricultural heartland with major dairy and poultry industries, making it central to detecting and monitoring zoonotic disease outbreaks.Source: epidemiological analysis
What animal diseases have affected the Midwest?
The 2015 H5N2 avian influenza in poultry and ongoing H5N1 transmission in dairy herds have made the region critical to US disease surveillance.Source: outbreak history

Background

US region of 10 states (Indiana, Illinois, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin). Agricultural heartland with major dairy and poultry industries. Central to H5N2 poultry (2015) and H5N1 dairy outbreaks.