An H5N1 outbreak at a small commercial farm

led to 15,000 egg-laying hens being killed

in Iowa in April 2022.

Each icon

represents

100 hens

But at a large factory farm in Ohio a flock of

6.5m hens was killed in December 2024 after

the virus was detected.

Each icon

represents

2,000 hens

An H5N1 outbreak at a small commercial farm led to

15,000 egg-laying hens being killed in Iowa in April 2022.

Each icon

represents

100 hens

But at a large factory farm in Ohio a flock of 6.5m hens

was killed in December 2024 after the virus was detected.

Each icon

represents

2,000 hens

An H5N1 outbreak at a small commercial farm led to

15,000 egg-laying hens being killed in Iowa in April 2022.

Each icon

represents

100 hens

But at a large factory farm in Ohio a flock of 6.5m hens

was killed in December 2024 after the virus was detected.

Each icon

represents

2,000 hens

An H5N1 outbreak at a small commercial farm led to

15,000 egg-laying hens being killed in Iowa in April 2022.

Each icon

represents

100 hens

But at a large factory farm in Ohio a flock of 6.5m hens

was killed in December 2024 after the virus was detected.

Each icon

represents

1,000 hens

An H5N1 outbreak at a small commercial farm led to

15,000 egg-laying hens being killed in Iowa in April 2022.

Each icon

represents

100 hens

But at a large factory farm in Ohio a flock of 6.5m hens

was killed in December 2024 after the virus was detected.

Each icon

represents

1,000 hens