US plants hope to maintain production despite virus threat

This May 20, 2020, photo provided by Smithfield Foods shows some of the measures the company says it has taken to limit the spread of the coronavirus inside its plants. Workers inside its Sioux Falls, South Dakota, pork processing plant wear protective gear and are separated by plastic partitions as they carve up meat. (Photo courtesy Smithfield Foods via AP)

OMAHA, Neb. — U.S. factories have been cranking out goods during much of the pandemic at rates that are remarkably close to normal. However, manufacturers are concerned they might not be able to keep pace until most of the country is vaccinated because the coronavirus continues to surge in areas where many plants are based.