The latest H5N1 confirmations in pet cats come from Kansas, Pennsylvania, Iowa, and Illinois.
The source of the girl's virus might have been raw poultry, according to media reports.
Cats in multiple states got sick after eating the food, which was undergoing testing in the wake of a recall.
None of the samples were positive for H5N1 antibodies, but some showed earlier infection from human seasonal flu strains and swine flu strains.
The detection came less than a month after the state began its bulk milk sampling program.
The ratings aren't intended as a detailed threat assessment and don't indicate which pathogen is most likely to trigger the next pandemic, but instead are a guide for research investment.
Cambodia's human cases, many involving people who had contact with sick poultry, have been on rise since 2023.
Mastitis was the ewe's only symptom, and tests on milk were positive for H5N1 avian flu virus.
In other updates, the CDC said serology testing ruled out human-to-human spread in a California child's illness earlier this year.
One of the two assessment programs targets wildlife incursions, and both are part of a larger effort to battle avian flu on poultry farms.
