Three condors were found dead from confirmed H5N1 infections, and five others showed symptoms, including neurological problems.
The cat likely contracted the virus from eating meat from exposed waterfowl. In global developments, the virus spread to the southern tip of South America, putting it within range of Antarctica.
The patient's home was near where H5N1 deaths in wild birds and sea lions had recently occurred.
The dog became ill after playing with a dead goose.
Investigators are working to determine the Chilean man's H5N1 exposure, and in Senegal, H5N1 has now infected a poultry flock.
Officials haven't said how the man was exposed to the virus, which had recently appeared in Chile's wild birds, poultry, and even some sea mammals.
Two of the outbreaks involved upland game bird farms, and another struck a live-bird market in New York's Queens County.
The illness is China's third involving H3N8 since 2022.
The detection involves a skunk found in Carter County, east of Amarillo.
In other avian flu developments, British officials report H5N1 detections in captive South America bush dogs and the US confirms more infections in poultry and mammals.
