Rodent Control

Tri-County Health Department protects residents against diseases that can be spread by animals (vectors) such as rodents. Worldwide, rats and mice spread over 35 diseases. There are disease concerns with both wild (rats, mice) and pet rodents (rats, mice, hamsters, gerbils, guinea pigs). These diseases can be spread to humans directly, through handling of rodents, through contact with rodent feces, urine, or saliva, or through rodent bites.


Diseases carried by rodents can also be spread to humans indirectly, through ticks, mites or fleas that have fed on an infected rodent. Wild rodents also may cause considerable property damage by chewing through wiring in homes, car engines, and other places. The primary strategy for preventing human exposure to rodent diseases is effective rodent control in and around the home. This is achieved by eliminating any food sources, sealing even the smallest entries into homes, and successfully trapping rodents in and around the home.

Hantavirus is a disease of concern that rodents can pass onto humans and can be fatal. People become infected through contact with hantavirus-infected rodents or their urine and droppings. Rodent control in and around the home remains the primary strategy for preventing hantavirus infection. The proper method for cleaning up after rodents can be found through multiple links on this page.

Getting Rodents Under Control
Getting a rodent problem under control can be very frustrating. The keys to rodent control are sealing, trapping and cleaning. Below are tips on how to get your rodent problem under control.

  • Tips on sealing up holes inside and outside the home to prevent entry by rodents.
  • Tips on trapping rodents around the home to help reduce a rodent population.
  • Tips on cleaning up rodent food sources and nesting sites.

Cleaning Up After Rodents
It is very important to take the appropriate precautions when cleaning up after rodents. This includes cleaning up rodent urine, droppings, nests and dead rodents. Below are tips on cleaning up everything from small messes to infestations.

Mice Fact Sheets