元江县2018-2021年生猪O型口蹄疫免疫效果评价与分析

为了解元江县生猪O型口蹄疫（FMD O）疫苗免疫状况，并评估免疫效果，2018-2021年在全县10个乡镇的规模场和散养户中，随机采集生猪血清样品，采用ELISA方法进行免疫抗体检测。结果显示：不同年份FMD O免疫抗体合格率平均为64.94%；不同区域FMD O免疫抗体合格率平均为64.01%；不同养殖方式规模场FMD O的免疫抗体合格率（66.23%）与散养户（64.61%）相比，相差1.62个百分点，差异不显著（P＞0.05）。结果表明，近年来元江县生猪FMD O整体免疫效果不是很理想，出现免疫不达标的年份、区域及养殖方式，应引起高度重视，检测结果可为元江县生猪FMD O的潜在风险点控制、疫苗选择及防控提供参考。

Evaluation and Analysis of the Immune Effect of O type Foot and Mouth Disease in Pigs in Yuanjiang County from 2018 to 2021

This study aims to understand the immune status of pig foot and mouth disease O (FMD O) vaccine in Yuanjiang County and evaluate the immune effect. From 2018 to 2021, in large scale farms and free range farmers in 10 townships in the county, we randomly collected pig serum samples, and used ELISA method for immune antibody detection. The results showed that the average qualified rate of FMD O immune antibody in different years was 64.94%. The average qualified rate of FMD O immune antibody in different regions was 64.01%. There was a difference of 1.62 percentage points in the qualified rate of immune antibodies in FMD O farms with different farming methods (66.23%) and free range farmers (64.61%), and the difference was not significant (P> 0.05). The results showed that in recent years, the overall immune effect of FMD O in pigs in Yuanjiang County was not very satisfactory, and the year, region and breeding method that the immunity did not meet the standard appeared. It deserves great attention. The detection results can provide reference for potential risk point control, vaccine selection and prevention and control of pig FMD O in Yuanjiang County.