The H5N1 case is in a resident of Yakima County, Washington, who was exposed to infected dairy cows.
The mosquito-borne virus kills 2 older adults with underlying medical conditions in North Carolina, the state’s health department says.
The detections, along with the animals’ nutritional and cultural significance to Indigenous people, highlight the need for ongoing surveillance.
There have been 96 dairy herd detections in the US this year.
During surprise drills, facilities conducted symptom screening in 93% of cases but asked about exposure to avian flu in only 10%.
The agency also noted a new cattle detection in Texas.
In international news, Cambodia reported a human H5N1 case this week.
Minnesota is the nation’s hot spot for both commercial poultry and wild-bird detections.
H5N1 detections have increased in wild birds across the US.
In the past month, 8 commercial flocks and 6 backyard flocks have been infected with H5N1, affecting 360,000 birds.