More than 640 COVID-19 cases are linked to the Sioux Falls plant of the meat packing giant Smithfield Foods in South Dakota, The New York Times reported on Wednesday. The plant, with a total of 3,700 employees, is the largest single-source cases in the U.S., said the report. Smithfield Foods announced on Wednesday the closure of two more meat processing plants in Missouri and Wisconsin after a massive coronavirus outbreak closed the South Dakota factory.

　　纽约时报15日报道，美国史密斯菲尔德食品公司(Smithfield Foods)在南达科他州苏瀑市 (Sioux Falls)的猪肉加工厂已经成为美国最大的单一源头疫情爆发点，至少有640例新冠病例与该工厂有关，已经有一名工人死亡。仅这一地导致的确诊病例就占到南达科他州的44%。该工厂是美国最大的猪肉加工厂之一，占美国猪肉产量的4%至5%，总共有3700名员工。

　　史密斯菲尔德公司15日还宣布，由于有员工新冠病毒检测呈阳性，还将分别关闭威斯康星州和密苏里州的两座肉制品加工厂。