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搜狐全球医讯 | 美FDA:20%杂货店牛奶抽检禽流感测试阳性

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作者 | 周亦川

编辑 | 袁月

近期美国多个州报告奶牛被高致病性禽流感感染。美国FDA发布公告称,约20%的杂货店抽检牛奶样品核酸检测阳性。这么一来牛奶还敢喝吗?

据《今日美国》等多家媒体报道,FDA和美国农业部的回应是,牛奶杀菌过程可靠,且患病奶牛的奶已销毁,市售产品可以安全饮用。

美国要求牛奶经巴氏消毒法处理才能销售,生牛奶即使存在细菌病毒,处理后对人类没有危害,然而加热失活的病毒碎片还会残留并被检测到。至于病毒碎片还有没有毒性,还需要进一步证实。此前研究称,含禽流感病毒的鸡蛋经巴氏消毒后很安全。

当然,生牛奶不安全。FDA建议,有流感症状或有密切接触史奶牛的生牛奶,不应饮用或制成奶酪等其他奶制品;所有奶牛运输前需做禽流感检测,呈阳性的奶牛必须隔离30天,转移前再做检测。

来源 / pixabay

禽流感会在人类中爆发吗?目前已有数十人接受了检测,尚没发现对人有高威胁性的变异体,,还没有通过食物或人与人间传播的案例。

专家警告,不能对禽流感传人掉以轻心。禽类和牛可将猪感染,而猪的病毒受体和人很像。如果病毒在猪群中大规模爆发,很可能进化出适合人类传播的变异体。

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