Last month, rodents were seen resorting to open warfare, cannibalism and eating their young in the wake of shutdowns to restaurants and other food sources that they rely on.

“Community-wide closures have led to a decrease in food available to rodents, especially in dense commercial areas,” the CDC said in recently updated rodent-control guidelines.

“Some jurisdictions have reported an increase in rodent activity as rodents search for new sources of food.

Environmental health and rodent control programs may see an increase in service requests related to rodents and reports of unusual or aggressive rodent behavior.”.