Correct or improve the translati

Correct or improve the translation of the following English sentences.原文：The European Commission announced that a total of 15 EU states, plus Switzerland and Hong Kong, are now known to have received egg products contaminated by an insecticide.译文：欧盟委员会宣布，现在共有15个欧盟国家以及瑞士和中国香港被知道进口了受杀虫剂污染的鸡蛋产品。改译：
【正确答案】：

欧盟委员会宣布，现在已知共有15个欧盟国家以及瑞士和中国香港进口了受杀虫剂污染的鸡蛋产品。