WASHINGTON — Additional highly pathogenic avian influenza (HPAI) cases continue to pop up around the United States.

On Sept. 29, a commercial turkey operation in Dunn County, Wis., saw 79,500 birds affected by the virus. Another location in Wisconsin, Racine County, also had 10,000 birds affected at a commercial duck operation.  

Pennsylvania also saw its largest HPAI confirmation since June at a commercial turkey operation in York County, which affected 25,200 birds.

The virus affected three turkey flocks containing 63,600 birds in Sanpete County, Utah. Two days earlier on Sept. 27, two flocks at 127,200 and 36,700 were also connected to HPAI, according to the Animal and Plant Health Inspection Service (APHIS) of the US Department of Agriculture.

Colorado Governor Jared Polis signed an executive order declaring a disaster emergency for the state following the latest outbreak in Weld County that affected 1.1 million birds at the end of September.

In April, Polis made a similar declaration following an HPAI spike. 

The latest numbers from the APHIS on Oct. 3 show that 484 commercial and backyard flocks have been discovered with HPAI in 40 states. To date, the virus has affected 46.75 million birds.