# Highly Pathogenic Avian Influenza A(H7N9) Virus, Tennessee, USA, March 2017

> Highly pathogenic H7N9 avian influenza was detected at two Tennessee poultry farms in March 2017, according to a study published in Emerging Infectious Diseases. The research found multiple introductions of low-pathogenicity virus that mutated before spreading between farms.

- Date: 2017-09-07 · published 2017-09-07T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/68837-highly-pathogenic-avian-influenza-a-h7n9-virus-tennessee-usa-march-2017
- Commodities: [Lean Hogs](https://feedsoft.ai/c/HOGS.md), [Chicken](https://feedsoft.ai/c/CHICKEN.md), [Soybean Meal](https://feedsoft.ai/c/SBM.md)

## Why it matters

This is a retrospective account of a past outbreak, so it adds little new supply information; it only reinforces the need for ongoing surveillance in US poultry.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| HOGS | 2025-06-09 | [Fact checking highly pathogenic avian influenza (HPAI)](https://feedsoft.ai/events/15996-fact-checking-highly-pathogenic-avian-influenza-hpai.md) | +2.5% | +5.9% |
| HOGS | 2024-04-10 | [Get the Facts Straight on Highly Pathogenic Avian Influenza - Bovine Vet](https://feedsoft.ai/events/16102-get-the-facts-straight-on-highly-pathogenic-avian-influenza-bovine-vet.md) | +3.7% | +2.9% |
| HOGS | 2026-03-15 | [The so-called "three major livestock infectious diseases" such as highly pathogenic avian influenza .. - MK](https://feedsoft.ai/events/15926-the-so-called-three-major-livestock-infectious-diseases-such-as-highly.md) | -1.0% | -2.2% |
| HOGS | 2024-02-20 | [Highly Pathogenic Avian Influenza (HPAI) - Camden County Center \| N.C. Cooperative Extension](https://feedsoft.ai/events/16120-highly-pathogenic-avian-influenza-hpai-camden-county-center-n-c-cooperative.md) | +2.4% | +3.7% |
| HOGS | 2026-02-08 | [Ahead of the Lunar New Year holiday, African swine fever (ASF), highly pathogenic avian influenza (A.. - MK](https://feedsoft.ai/events/15931-ahead-of-the-lunar-new-year-holiday-african-swine-fever-asf-highly-pathogenic.md) | -0.2% | +6.9% |
| SBM | 2022-02-08 | [Highly pathogenic avian influenza returns to US flocks](https://feedsoft.ai/events/24-highly-pathogenic-avian-influenza-returns-to-us-flocks.md) | -1.4% | +3.8% |
| SBM | 2025-06-09 | [Fact checking highly pathogenic avian influenza (HPAI)](https://feedsoft.ai/events/15996-fact-checking-highly-pathogenic-avian-influenza-hpai.md) | -1.2% | -9.3% |
| SBM | 2024-04-10 | [Get the Facts Straight on Highly Pathogenic Avian Influenza - Bovine Vet](https://feedsoft.ai/events/16102-get-the-facts-straight-on-highly-pathogenic-avian-influenza-bovine-vet.md) | +0.6% | +11.7% |

## Sources

- doi.org: https://doi.org/10.3201/eid2311.171013

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.