As of early December, cases of canine infectious respiratory disease complex (CIRDC) have been seen by veterinarians in multiple states. The exact number remains unknown as requirements for veterinarians to report CIRDC to their state animal health officials are highly variable. Further hampering reporting is that several bacteria and viruses can contribute to CIRDC, and that, by the time a dog does get tested, if the causative agent is a virus, it may have already passed the point of being detectable.
So, while nationwide numbers are not known, Colorado, New Hampshire, and Oregon officials are working with state and federal veterinary diagnostic laboratories to determine the underlying cause or causes.
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