Pneumonic Plague in a Dog and Widespread Potential Human Exposure in a Veterinary Hospital, United States

Paula A. Schaffer; Stephanie A. Brault; Connor Hershkowitz; Lauren Harris; Kristy Dowers; Jennifer House; Tawfik A. Aboellail; Paul S. Morley; Joshua B. Daniels


Emerging Infectious Diseases. 2019;25(4):800-803. 

In This Article

Abstract and Introduction


In December 2017, a dog that had pneumonic plague was brought to a veterinary teaching hospital in northern Colorado, USA. Several factors, including signalment, season, imaging, and laboratory findings, contributed to delayed diagnosis and resulted in potential exposure of ≥116 persons and 46 concurrently hospitalized animals to Yersinia pestis.


Plague is rare in dogs, even in areas to which Yersinia pestis is endemic.[1,2] We describe a case of canine pneumonic plague that resulted in ≥116 potential human exposures.