智通财经APP获悉，周二，正业生物(ZYBT.US)大跌逾44%，报7.86美元。据了解，正业生物是一家动物疫苗制造商，主营业务包括动物疫苗的研发、制造、销售和技术服务。公司共有包括细胞悬浮培养和基因工程疫苗等14条GMP生产线，产品涵盖猪、禽、牛羊、宠物四类动物疫苗，40多个产品文号，80多个规格产品。除国内市场以外，公司多个禽用疫苗产品出口埃及、巴基斯坦、越南等国家。
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