In confirming the state's findings, the USDA now reports 197 outbreaks in dairy cows from 14 states.
Earlier this year, animal health officials warned that the reassortant is spreading in the Greater Mekong subregion.
Officials await results from testing on samples from 3 farms in California's Central Valley. The state is the nation's largest milk producer.
Multilingual teams were crucial for rapid response and testing, which also found COVID among symptomatic cullers.
The detection brings the number of affected dairy herds in Michigan to 28.
Cambodia, where an older H5N1 clade circulates in poultry, has now reported 18 human cases since early 2023.
Testing of 167 samples from 27 states included different cheeses, including aged varieties made from raw milk, butter, ice cream, and milk.
Like two recent 2.3.4.4b viruses, the subtype from the Texas patient is of moderate risk for both future emergence and public health impact.
One patient had conjunctivitis in one eye, and the other had longer-lasting flulike symptoms.
In related developments, Colorado's governor recently extended an emergency declaration that frees up more resources to battle the outbreaks.
