A rash of coronavirus outbreaks at dozens of meatpacking plants across the nation is far more extensive than previously thought, according to an exclusive review of cases by USA TODAY and the Midwest Center for Investigative Reporting.

And it could get worse. More than 150 of America’s largest meat processing plants operate in counties where the rate of coronavirus infection is already among the nation’s highest, based on the media outlets’ analysis of slaughterhouse locations and county-level COVID-19 infection rates.

These facilities represent more than 1 in 3 of the nation’s biggest beef, pork and poultry processing plants. Rates of infection around these plants are higher than those of 75% of other U.S. counties, the analysis found.

And while experts say the industry has thus far maintained sufficient production despite infections in at least 2,200 workers at 48 plants, there are fears that the number of cases could continue to rise and that meatpacking plants will become the next disaster zones.