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玉林市规模场重组禽流感病毒(H5+H7)三价灭活疫苗免疫效果评估 被引量:7

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摘要 为了解玉林市2020年上半年规模禽场重组禽流感病毒(AIV)(H5+H7)三价灭活疫苗(H5N1 Re-11株+Re-12株,H7N9 Re-2株)的免疫效果以及该疫苗不同厂家的田间免疫效果,本研究采用血凝(HA)和血凝抑制(HI)方法对玉林市2020年上半年7个县(市、区)21家规模化禽场采集的1260份血清进行了H5和H7亚型高致病性禽流感病毒(HPAIV)抗体检测。结果显示,玉林市规模鸡场和规模鸭场使用该疫苗免疫,H5亚型HPAIV免疫抗体合格率在免疫后21天分别为99.05%和100%,在免疫后42天分别为99.29%和100%;H7亚型HPAIV免疫抗体合格率在免疫后21天分别为99.29%和99.52%,在免疫后42天分别为99%和100%。3个不同疫苗厂家的疫苗免疫后21天,规模鸡场和规模鸭场的抗体合格率分别为100%和100%,98.33%和99.17%,100%和98.33%;免疫后42天,规模鸡场和规模鸭场抗体合格率均为100%。本结果表明,玉林市2020年上半年规模禽场H5和H7亚型HPAIV免疫抗体合格率均高于国家规定的70%标准,免疫效果较好,同时3个不同疫苗厂家的疫苗田间免疫效果均较好。
出处 《广西畜牧兽医》 2021年第3期137-140,共4页 Guangxi Journal of Animal Husbandry & Veterinary Medicine
基金 玉林市科技攻关项目(玉市科201934023)。
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