2016年3月份,豫南某猪场半个月内陆续发生后备猪、保育猪以发烧、喘气为主要特征的疾病,发病首先从后备猪开始,陆续转到保育舍,两阶段猪群发病率均达70%,死亡率在6%左右,通过病理剖检、分子生物学诊断、细菌分离鉴定,最后确诊为猪繁殖与呼吸综合征(PRRS)与链球菌病混合感染。 March 2016, a pig farm in southern Henan, one after another occurred within a month after the backup pigs, pigs with fever, gasp as the main characteristics of the disease, the disease began with pigs back, one after another to nursery, two-stage herd incidence Up to 70%, and the death rate was about 6%. Through pathological examination, molecular biology diagnosis and bacterial isolation and identification, the final diagnosis was the combination of PRRS and streptococcal infection.