Investigation and Analysis of Epidemiological Characteristics of Canine Respiratory Tract Infection
[Objective]The aim of this study was to understand the composition and infection characteristics of the pathogen spectrum of respiratory tract infections in dogs.[Method]This study selected 400 cases of canine nasal and oropharyngeal swab samples with clinical respiratory symptoms from animal diagnosis and treatment institutions in 18 provinces of China in 2022.The nucleic acid of 6 kinds of dog respiratory pathogens were detected by constant temperature nucleic acid amplification chip,and the characteristics of their different prevalence among different genders,different seasons,different ages,different regions and different breeds were analyzed.[Result]The total detection rate of canine respiratory tract pathogen nucleic acid in 400 samples was 97.25％,and the detection rate of Canine parainfluenza virus(CPIV)was the highest 35.00％,followed by Mycoplasma canis(M.canis,31.00％),Canine respiratory coronavirus(CRCoV,28.50％),Canine distemper virus(CDV,18.50％),Brodetella bronchiseptica(B.b,10.50％),and Canine influenza virus(CIV,1.50％).There were 92 cases of mixed infection,and the mixed infection rate was 23.00％,among which 77 cases were double infection,accounting for 83.70％of the mixed infection cases.CPIV+M.canis,CRCoV+CPIV and CRCoV+M.canis were more common,the positive rates were 4.75％,4.25％and 3.75％,respectively.There were 12 cases of triple inf ection,accounting for 13.04％of mixed infection cases,2 cases of quadruple infection,accounting for 2.17％of mixed infection cases,and 1 case of quintuple infection,accounting for 1.08％of mixed infection cases.According to Pearson chi-square test,there were significant differences in CDV among different ages(P＜0.05).There were no significant differences among the other five respiratory pathogens in different sexes,different ages,different regions and different varieties(P＞0.05).[Conclusion]The results showed that the composition of canine respiratory tract pathogen spectrum was complex,mainly composed of CPIV,M.canis,CRCoV,CDV and B.b,and it was easy to mixed infection,which could be infected all year around,especially in autumn and winter.Systematic and continuous research should be carried out to provide scientific basis for the accurate prevention and control of canine respiratory tract diseases.
万方数据
维普
