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Factors associated with development of Canine Infectious Respiratory Disease Complex (CIRDC) in dogs in 5 Canadian
Daniel J Joffe1, Roxana Lelewski1, J Scott Weese1
1Associate Veterinary Clinics, Calgary, Alberta (Joffe); Department of Population Medicine (Lelewski, Poljak), Department of Pathobiology (Weese), Ontario Veterinary College, University of Guelph, Guelph, Ontario; Blue Cross Animal Clinic, Sarnia, Ontario (Mcgill-Worsley); Vancouver Animal Emergency Clinic, Vancouver, British Columbia (Shankel); Westside Veterinary Hospital, Toronto, Ontario (Mendonca); Calgary North Veterinary Hospital, Calgary, Alberta (Sager); Ottawa Veterinary Hospital, Ottawa, Ontario (Smith).
Abstract:
This study investigated the association between presence of respiratory pathogens and development of Canine Infectious Respiratory Disease Complex (CIRDC) in dogs in 5 Canadian small animal clinics. In total, 86 dogs were tested using a commercial PCR respiratory panel; 64 dogs were considered as cases and 22 were control dogs matched by veterinary clinic. No control animals (0/22) were positive for canine parainfluenza virus (CPIV), whereas 27/64 (42%) CIRDC cases were positive. Furthermore, 81% of case dogs tested positive for Mycoplasma cynos, compared with 73% of control dogs. Canine respiratory corona virus (CRCoV) was detected in no control dogs compared with 9.4% of clinical dogs. No animals were positive for any influenza virus type A present in the diagnostic panel. Presence of CPIV was associated (P < 0.01) with the occurrence of CIRDC after adjustment for demographic factors and presence of CRCoV (P = 0.09).