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USDA Says H5 Avian Flu Detection in Wisconsin Dairy Herd is New Spillover Event

By Chris Dall

The US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) confirmed last week that the recent detection of highly pathogenic avian influenza (HPAI) in a Wisconsin dairy herd represents a new spillover event from wildlife.

In a December 19 update, APHIS said whole-genome sequencing confirmed that the virus detected in a Wisconsin dairy herd on December 14 is H5N1 clade 2.3.4.4b genotype D1.1, which was implicated in two spillover events in dairy herds in Nevada and Arizona earlier this year. The Wisconsin spillover event is considered separate from those two previous spillovers, APHIS said. No additional infected dairy herds have been detected.

Source : umn.edu

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PRRS continues to be one of the biggest challenges facing pork producers, but each outbreak can also provide valuable information about herd recovery, losses and the management decisions that follow.In this episode, Dr. Ana Paula Serafini Poeta Silva, a research scientist at Iowa State University, discusses the PRRS Outbreak Management Program, or POMP, and what researchers have learned from a database containing information from more than 700 breeding-herd outbreaks. She explains how POMP uses data from individual outbreaks to establish benchmarks producers can use to better understand what to expect during recovery, including potential losses and the time it may take for a herd to return to baseline production. The conversation also explores how PRRS management has evolved, including the role of live virus inoculation and modified-live vaccines.