Rats can bite when they feel cornered or pressured. This may happen when you put your hand inside of a rat cage or come across one in the wild. They're more common than they used to be. This is partly because more people are keeping them as pets.

What happens if a rat bites you?

The common symptoms of a rat bite are pain, redness, swelling around the bite and, if secondary infection occurs, a weeping, pus-filled wound. Other rat bite symptoms may include those associated with bacterial infections known as streptobacillary rat bite fever and spirillary rat bite fever.

Are field rats dangerous?

Some of the diseases that can be spread from rats to people are bubonic and pneumonic plague, murine typhus, salmonella, leptospirosis, Hantavirus, and tularemia.