(COLORADO) — Colorado State University (CSU) veterinary experts report that cases of canine respiratory disease have dropped from peak numbers in 2023, but the cause is still being investigated.
“The great news is that the number of cases being reported in Colorado has been dropping since our suspected peaks between August and December,” said Dr. Michael Lappin, an internal medicine specialist and director of the Center for Companion Animal Studies at CSU. “Why that trend is occurring is unknown but may be related to our pets spending less time in social situations that might include ill dogs during the winter months.”
CSU said 2023’s wave of canine respiratory disease was different from previous years as dogs experienced prolonged coughs for up to several weeks and there were more instances of what appeared to be secondary pneumonia. CSU’s Veterinary Teaching Hospital saw more than double the number of cases of canine pneumonia compared to the same three-month period in 2022.
According to CSU, experts have been working with partners across the state to investigate the origin of the elevated numbers. One of the efforts is to identify if any of the previous spikes were the result of one of ten known viruses or bacteria and if any of those pathogens have changed, or if there is a new cause.