WATERLOO, Iowa -- Daily reports of giant meat-processing plants closing because workers tested positive for the coronavirus have called into question whether slaughterhouses can remain virus-free.

IOWA CITY, Iowa (AP) — Tyson Foods suspended operations Wednesday at an Iowa plant that is critical to the nation’s pork supply but was blamed for fueling a massive coronavirus outbreak in the region.

Tyson Foods Inc. has announced plans to close a pork processing plant in Perry, Iowa, resulting in the elimination of more than 1,200 jobs. "After careful consideration, we have made the difficult ...