Farms.com Home   Ag Industry News

U.S. Swine Herd Reaches Four Years TGEV Free

Jul 01, 2025
By Farms.com

No Positive TGEV Cases Reported Since March 2021 in U.S.

The U.S. swine herd has achieved a major milestone in animal health, completing four full years without a single reported case of Transmissible Gastroenteritis Virus (TGEV).

The last confirmed positive RT-PCR case was recorded on March 22, 2021, in Iowa, as per data from the Swine Disease Reporting System (SDRS).

TGEV, a viral disease affecting pigs, especially piglets under two weeks of age, is highly contagious. Symptoms include vomiting and diarrhea.

The virus, part of the Coronaviridae family, can be fatal for young pigs, though older pigs tend to recover more easily.

Since 2021, more than 500,000 PCR tests have been conducted across 47 states, covering all farm types and age groups. These consistent and widespread testing efforts have played a vital role in maintaining the disease-free status.

The Swine Disease Reporting System compiles data from six leading veterinary diagnostic labs to track swine enteric coronaviruses, including TGEV.

Regular monitoring, good hygiene practices, and strong farm biosecurity have contributed to this success.

The achievement signals major progress in the industry’s disease management, protecting both animal welfare and farm productivity. Continuous surveillance remains essential to prevent the re-emergence of this virus in the future.

Read the full story at National Hog Farmer.


Trending Video

Genomic Technologies and Public Trust - Dr. Ellen Goddard

Video: Genomic Technologies and Public Trust - Dr. Ellen Goddard


In this episode of The Swine it Podcast Show Canada, Dr. Ellen Goddard, Professor Emerita at the University of Alberta, discusses public acceptance of genomic technologies in pork production. She explains why disease resistance is viewed positively, how labeling affects trust, why farmers remain highly credible messengers, and how communication can shape consumer confidence around gene editing. Listen now on all major platforms!

"Not providing information is a choice that can affect long-term public trust."

Meet the guest: Dr. Ellen Goddard / ellen-goddard-11541138 is Professor Emerita at the University of Alberta and an agricultural economist. Her work focuses on consumer behavior, trust, livestock sectors, and public attitudes toward food technologies. She also specializes in economic modeling for pork, beef, and dairy systems. Learn more from Dr. Ellen Goddard on the Swine in Canada Podcast Show, available on all major platforms.