More than 1,000 employees at the pork plant in Iowa have been infected by the virus, and at least six have died. The company launched an independent investigation into the complaints last month.
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Laurel Wamsley is a reporter for NPR's News Desk. She reports breaking news for NPR's digital coverage, newscasts, and news magazines, as well as occasional features. She was also the lead reporter for NPR's coverage of the 2019 Women's World Cup in France.