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

When the variable demographic factors and single or multiple CIRDV detections were analyzed, the main population was male and puppy in both groups. The common respiratory problems in both groups were nasal discharge, cough and depression. However, there was no association between sex, age, vaccination status and respiratory signs for single or multiple CIRDV detections ( Table 3 ). The variable demographic factors were also compared with the clinical severity level, revealing that most CIRDV-infected puppies had a greater severity compared with the other age groups. There was a statistically significant association between the age of dogs and clinical severity level (P ¼ 0.012), with the exception of sex, vaccination status, type of affected dog and number of different CIRDVs detected ( Table 4 ). The respiratory score was compared with CIRD agents detected in both the CAI and HAI groups (Table 5) . Most CIRDV-positive dogs expressed a respiratory score of 3 or 4 in both the CAI and HAI groups, which accounted for 60.2% (80/133) and 61.8% (47/76) respectively. Moreover, double infection with CIV and CRCoV was predominantly detected in both groups with a statistical association (P ¼ 0.009, Table 5 ).