Fortunately, in recent years most American eggproducers have started to vaccinate their flocks.
幸运的是,美国最大的蛋品生产商近年来已经开始对鸡群接种。
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These "specialty eggs", as they are known in the industry, are sold at a premium, which means eggproducers, sellers, and grocery chains all want to find ways to sell more.