Highly pathogenic avian influenza continued its destruction of U.S. commercial and backyard flocks in the final days of 2022. The latest tally from the USDA’s Animal and Plant Health Inspection Service had five outbreaks confirmed last week in four states: Kansas, Michigan, Tennessee and Washington.
The largest recent outbreaks involve two commercial broiler breeder producers in Tennessee’s Weakley County, and affected a total of 62,600 birds between them. Confirmed HPAI detections in 2022 include 306 commercial and 411 backyard flocks in 47 states, affecting 57.82 million birds, the federal agency said Wednesday in its last update.
According to APHIS, commercial and backyard flocks in just three states — Hawaii, Louisiana and West Virginia — have been spared amidst the deadliest HPAI outbreak in U.S. history. The last major HPAI outbreak in the U.S. occurred in 2015, when 50.5 million chickens and turkeys perished.
The ongoing scourge of HPAI is a global issue, with Japan and the Czech Republic among the nations reporting massive culling efforts in recent weeks. Outbreaks were also reported in Mexico and Canada during the month of December.
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