2024-2025 winter avian influenza surge
2024–2025: a documented market event that overlapped the wholesale price windows of 5 tracked ingredients — co-occurrence in time, never an asserted cause.
What happened
The ongoing H5N1 clade 2.3.4.4b HPAI outbreak intensified over the winter of 2024-2025. USDA APHIS reported roughly 18.25 million birds affected in December 2024 and about 23.3 million in January 2025, with commercial egg-layer depopulations concentrated in Ohio, Indiana, and Missouri; the national table-egg layer flock fell to about 291 million at the end of February 2025 from a typical level near 320-325 million. Cumulatively, USDA reported the 2022-present outbreak had affected more than 166 million birds through late February 2025, including more than 130 million commercial egg layers and over 18 million turkeys.
Documented account from our open, cited registry (sources below). Shown as context beside the price record — co-occurrence in time, never an asserted cause.
Affected ingredients
Why these ingredients were exposed
Each affected ingredient's public supply structure — where it comes from and how much it leans on imports. Context that makes the co-occurrence with a documented event legible, never its cause.
- EggsDomestically sourced comes almost entirely from domestic production, with little import buffer. Its exposure runs through domestic production structure, not import origins — a domestic event overlaps its price window.
- Whole turkeyDomestically sourced comes almost entirely from domestic production, with little import buffer. Its exposure runs through domestic production structure, not import origins — a domestic event overlaps its price window.
- Whole chickenDomestically sourced comes almost entirely from domestic production, with little import buffer. Its exposure runs through domestic production structure, not import origins — a domestic event overlaps its price window.
- Chicken breast (boneless)Domestically sourced comes almost entirely from domestic production, with little import buffer. Its exposure runs through domestic production structure, not import origins — a domestic event overlaps its price window.
- Chicken thighDomestically sourced comes almost entirely from domestic production, with little import buffer. Its exposure runs through domestic production structure, not import origins — a domestic event overlaps its price window.
It explains why an ingredient sits in the path of a documented event — not that the event caused any price move. Co-occurrence in time, never a cause.
The detected moves that overlapped
Each figure is a wholesale reference against its own ±26-week normal — a market move, never a delivered price.
Whole turkey — Feb 2025: the wholesale reference ran −21% below its ±26-week normal, held 28 days.
Co-occurrence in time, not a cause.Eggs — Feb 2025: the wholesale reference ran +127% above its ±26-week normal, held 42 days.
Co-occurrence in time, not a cause.Whole chicken — May 2025: the wholesale reference ran −27% below its ±26-week normal, held 98 days.
Co-occurrence in time, not a cause.
What moved together
Co-occurrence, not cause
Eggs
In Eggs's 4 notable moves, these ingredients ran the same direction in the same weeks:
Whole turkey
In Whole turkey's 1 notable moves, these ingredients ran the same direction in the same weeks:
Whole chicken
In Whole chicken's 3 notable moves, these ingredients ran the same direction in the same weeks:
Chicken breast
In Chicken breast's 6 notable moves, these ingredients ran the same direction in the same weeks:
Chicken thigh
In Chicken thigh's 5 notable moves, these ingredients ran the same direction in the same weeks:
Moving in the same weeks is not one thing causing another — many of these share a growing region, a shipping lane, or an aisle. It is a directed, bounded count: in K of an ingredient's own notable moves, another ran the same way.
Sources
3 sources
- Update on Highly Pathogenic Avian Influenza, March 13, 2025 — U.S. Farm Credit Administration (FCA)
- HPAI roundup: 2025 off to bad start for US layer industry — WATT Global Media (WATTPoultry)
- The Highly Pathogenic Avian Influenza (HPAI) Outbreak in Poultry, 2022-Present — Congressional Research Service (Congress.gov)
Documented events come from our open, cited registry (CC‑BY). Price moves are detected from public history (USDA/BLS/FRED) and shown as co-occurring context, never asserted as the cause. How events are picked.