Even healthy cows with no symptoms of disease can harbor harmful bacteria, according to Robert Tauxe, deputy director of the CDC's food-borne and bacterial diseases division.
美国疾病控制与预防中心食物与细菌疾病部副主任陶克斯(RobertTauxe)说，无病症的健康奶牛也可能携带有害菌。
Even healthy cows with no symptoms of disease can harbor harmful bacteria, according to Robert Tauxe, deputy director of the CDC's food-borne and bacterial diseases division.
美国疾病控制与预防中心食物与细菌疾病部副主任陶克斯(RobertTauxe)说，无病症的健康奶牛也可能携带有害菌。
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