Cross-sectional investigation and risk factor analysis of community-acquired and hospital-associated canine viral infectious respiratory disease complex

Piewbang, Chutchai; Rungsipipat, Anudep; Poovorawan, Yong; Techangamsuwan, Somporn

A total of 209 dogs with respiratory illness were included in the study. A nasal swab (NS) and an oropharyngeal swab (OS) were obtained from each dog. These dogs with respiratory illness were obtained from the animal hospitals and private clinics located at Central (n ¼ 127), Eastern (n ¼ 21), Southern (n ¼ 49), and Western (n ¼ 12) regions of Thailand. Any dog with respiratory problems associated with underlying cardiopulmonary disease, functional or anatomical airway disease and neoplasia, based on physical examination and radiographic investigation, or any dog with a history of vaccination within 2 weeks before showing respiratory clinical signs, was excluded from the study. The history of respiratory clinical presentation at hospital or clinic for at least 72 h after being admitted was recorded and used to categorize the dogs into the CAI and HAI dog groups. The CAI group was comprised of dogs with respiratory illness at first presentation at a hospital or a clinic and with no history of hospital or clinic admission within last 3 months, while the HAI group was comprised of likewise symptomatic dogs that showed respiratory problems within 72 h after admission to a hospital or clinic.