Six Idaho Dairy Farms Have the Avian Flu. Here’s What You Need to Know

May 21, 2024

By Monica Esquivel

The Idaho State Department of Agriculture confirmed on Friday avian flu had been detected in a dairy operation for the first time in Minidoka County.

Last week, two farms in Jerome County also tested positive. The first three cases were detected in early April in Cassia County after a farm there received cows from an affected dairy in Texas.

State Veterinarian Dr. Scott Leibsle said about 10 to 20% of cows in affected facilities have tested positive and the economic impact to farmers has been significant.

“What you're seeing is, is a drop in milk production and a drop in feed intake for about that period of time. And then once the symptoms resolve and once the cattle recover, for the most part they're able to return to production,” Dr. Leibsle said.

He said while a large number of cattle have gotten sick, few cases have been fatal and most recover in 10 to 15 days. Poultry cases, however, are lethal and present a greater economic loss.

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Video: Post-Weaning E. coli Control - Dr. Rodrigo Paiva

In this episode of The Swine it Podcast Show Canada, Dr. Rodrigo Paiva, DVM and PhD candidate at Iowa State University, explains how post weaning colibacillosis has changed in recent years and why pathogenic Escherichia coli has become more important in swine production. He discusses virulence factors, diagnosis, whole genome sequencing, biosecurity, and practical strategies to reduce disease risk while improving herd health. Listen now on all major platforms!

"Pathogenic E. coli now behaves like a robust, well-equipped truck carrying multiple tools for post-weaning disease."

Meet the guest: Dr. Rodrigo Paiva / rodrigo-paiva-09364355 is a veterinarian and PhD candidate at Iowa State University specializing in swine health, veterinary epidemiology, and post weaning colibacillosis. After several years working in commercial swine production in Brazil, his research has focused on understanding pathogenic Escherichia coli and improving disease prevention in modern production systems. Listen to Dr. Rodrigo Paiva on The Swine it Podcast Show Canada, available on all major platforms.