Rodents are agile creatures that infest places where food is mostly present. These creatures take advantage of holes similar to the size of a dime to invade homes and establishments. Each rat differs in size, ranging from a few inches to as big as 10 inches. They are known to chew through wood, cinderblocks, glass and wires using their strong teeth to create entry points when there are none. Aside from spreading diseases through contamination, they could also pose as a threat through fire hazards by chewing through electric wiring. Homeowners and managers should block holes and possible entry points. Avoiding clutter within the area also reduces the amount of possible hiding spots. Hantavirus, Leptospirosis, Tularemia and Salmonella are some examples of the diseases carried by rodents.