It identified 334,000 cases of COVID-19 related to workers at United States meat-packing facilities.
It found higher rates of the disease in counties hosting the plants and said the estimated infection rates are likely conservative because the study looked at infection rates within a county and did not account for cases that might have been contracted at a meatpacking plant, but spread to other counties.
The study says that resulted in more than $11 billion in economic damage.
The study also said its tally of the toll generated by COVID-19 is greater than previous reports and estimates.
