PLAINWELL, Mich. — Sixty workers at a beef plant have tested positive for the coronavirus.

The group of workers at JBS in Plainwell tested positive between March 24 and April 19, according to Lindsay Maunz, public information officer at the Allegan County Health Department, today, citing data from the Michigan Disease Surveillance System.

"We have been working closely with the JBS Plainwell human resources team and have an ongoing investigation," Maunz said.

"We went on-site to review their social distancing, screening and environmental hygiene practices on Monday, April 13."

Maunz said Allegan County has 10 of the 60 COVID-19 cases "employed at JBS."

She added that the health department is working with other health jurisdictions to "communicate all positive COVID-19 cases and their close contacts."

On April 13, JBS announced it is temporarily closing its facility in Greeley, Colorado to "support the fight against coronavirus."

Later, on April 20, JBS also said it is indefinitely closing its pork plant in Worthington, Minnesota.

JBS said then it is focusing on "keeping the virus out of its facilities" to "protect the health and safety of its workforce."