@peter If you search the Aphis databases, you'll see that New Mexico has a large number of documented infections in wild birds and mammals, many of which are dog contacting. Dog scavenges a bird, gets in a tousle with a skunk, raccoon, etc. those are all ways for it to get infected (to say nothing of raw pet food). NM has also had at least some documented trouble in their poultry and dairy industries this last year. For all we know, they drank some raw milk, ate undercooked eggs, etc.