The US Centers for Disease Control and Prevention warned of the "unusual or aggressive" behavior of rats in America more than two months after the human closure (due to the Corona epidemic), which affected rodents in cities that now found themselves unable to eat food from restaurants and garbage in Streets and other food sources.

In his report, published in the British newspaper, The Guardian, author Edward Hillmore said that during the past month, it was noted that rats that dive into garbage resort to eating their young in the wake of the closure of urban areas, according to the National Health Authority.

"The closures at the community level have reduced the food available to rodents, especially in dense commercial areas," the US centers said in the recently updated rodent control guidelines.

"Some authorities have indicated an increase in rodent activity that is searching for new sources of food. Environmental health and rodent control programs may see an increase in service requests for rodents and complaints of unusual or aggressive behavior," the author added.

Many noted the high level of rats aggression in New York, where it is reported increasing eating meat, her sex and young, at a time when the behavior of unusual rats in New Orleans is documented on a camera system.

"When I passed around the corner of the street, I found about 30 rats feeding on something in the middle of the street," Charles Marsala, tour guide on Bourbon Street, told CBS News.

The writer returned to say that complaints in Chicago included reports of rats invading residential buildings, as they seek to find new sources of food, at a time when some rodent experts expected increased aggression by urban rats.

"Many of these rats in our cities depend on their night food, that is restaurants, hotels, bars, donuts and everything we consume on the go," rodent expert Bobby Corrigan told the Washington Post.

American centers noted that disturbances in rodents are common during natural disasters, and added, "preventive measures include closing outlets of homes and companies, removing rubble and heavy plants, keeping garbage in tightly covered boxes, and removing pet food and birds from the yards."