为做好河南省小反刍兽疫防控工作，全面掌握小反刍兽疫免疫抗体水平及病毒感染状况，按照2020年河南省动物疫病专项监测方案要求，在全省开展了小反刍兽疫专项监测。在群内采用随机采样原则，对全省所有种羊场以及较大规模羊场（存栏量≥3 000只）进行调查，共监测60个养殖场，采集血清学样品1 817份，病原学样品1 718份，使用竞争ELISA、荧光RT-PCR分别检测小反刍兽疫免疫抗体水平及病毒核酸。结果显示：小反刍兽疫平均免疫抗体合格率为73.80%，其中商品场免疫抗体水平优于种羊场；不同企业生产的小反刍兽活疫苗免疫抗体合格率均高于70%的农业农村部最低标准；不同区域羊场免疫抗体水平有所差异，免疫2次及以上的羊场免疫抗体水平优于只免疫1次的；所有样品小反刍兽疫病毒核酸检测均为阴性。结果表明，河南省近期发生小反刍兽疫疫情的风险较低，防控成效较好。
In order to further improve the efforts for prevention and control of peste des petits ruminants（PPR）in Henan Province，and to learn the level of immune antibodies against PPR and status of infection，a special monitoring for PPR was conducted across the province according to the requirements of Anhui Special Monitoring Plan of Animal Diseases. All breeding farms and large-scale farms（with inventory≥3 000）were investigated across the province，involving 60 farms. Random sampling principle was used in the investigated farms，and 1 817 serum samples and 1 718 pathogenic samples were collected. The level of immune antibodies and viral nucleic acids of PPR virus were detected respectively by competitive ELISA and fluorescence RT-PCR. The results showed that the average qualified rate of immune antibodies against PPR was 73.80%，and better in commercial farms compared to breeding farms；all the qualified rates of PPR vaccines produced by various enterprises were higher than 70% that was defined by Ministry of Agriculture and Rural Affairs as a minimum standard；the level of immune was different in the farms in different regions，and better in the farms where vaccination was conducted twice or above compared to those for one time；and all the samples were negative for PPR virus as tested. In short，the risk of PPR occurrence was relatively low due to achievements in prevention and control of the disease.