Diagnosis and treatment of mixed infection of porcine reproductive and sespiratory syndrome virus and bacteria
Piglets from a pig farm in Yiyang City,Hunan Province showed fever,shortness of breath and cough.The pathological changes of inguinal lymph node enlargement and pulmonary edema were found.In order to confirm the disease in the pig farm as soon as possible and take effective control measures,the lung,liver,kidney and mesenteric lymph nodes of the infected pigs were collected,and the qPCR detection,isolation culture identification and drug susceptibility test of porcine reproductive and sespiratory syndrome virus(PRRSV),porcine circovirus type 2(PCV2),Proteus mirabilis,Enterococcus faecalis and Escherichia coli were carried out.The results showed that PRRSV was positive by qPCR and PCV2 was negative.The isolation and identification of pathogenic bacteria and the results of drug susceptibility test showed that three pathogenic bacteria,Proteus mirabilis,Enterococcus faecalis and Escherichia coli were isolated;all three strains were sensitive to polymyxin B,furazolidone and vancomycin.The test results of this case showed that piglets are infected with PRRSV after the secondary infection of a variety of bacteria caused disease,the first drug for prevention and control was polymyxin B,furazolidone or vancomycin,pig farms should strengthen vaccine immunization work.This study provided a theoretical basis for the prevention and control of bacterial respiratory tract infection of piglets in this farm.
万方数据
维普
