目前在集约化养殖场的猪群中经常出现病毒病和细菌病的混合感染,严重影响中国养猪业的发展.2011年9月,广东某个千头母猪场的猪群大量发病,表现为高热、咳嗽、食欲下降、皮肤发绀、关节肿大等临床症状.通过流行病学调查、剖检、细菌分离鉴定、药敏试验、PCR和RT-PCR等实验室检测最终确诊为高致病性猪繁殖与呼吸综合征、猪圆环病毒病和副猪嗜血杆菌病的混合感染,在此基础上提出和实施了该病的防控方案.%Currently, multi-infections of bacterial and viral diseases affected China's pig industry seriously. In September 2011, large number of pigs from a pig farm of Yangjiang City, Guangdong Province had incidence and manifestations as hyper-thermia, cough, decreased appetite, skin cyanosis, joint swelling and other clinic symptoms. Based on the epidemiological investigation and laboratory diagnosis on disease samples, the multi-infections with highly pathogenic PRRS virus, porcine circo-virus type 2, and Haemophilus parasuis were diagnosed by bacterial isolation, PCR, RT-PCR.etc, and corresponsive methods were applied to control this outbreak.
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