Rats and mice are far from being harmless creatures as they can cause infectious diseases & serious health complications. Rodent borne diseases include bacteria-based illnesses such as salmonella to viruses such as hantavirus. Once they have entered and infested your homes, then they can potentially spread several diseases.
When you have an infestation of mice or rats, their urine is the primary source of diseases. Rodent borne-diseases can be contracted by direct contact with the urine, through contaminated food, water and contaminated air. Just like urine, you can catch rodent-borne diseases from rat or mice feces through contamination of food, air and water.
Next, an easy way to be infected is by touching a dead rodent and then touching open areas of your body such as mouth, nose and eyes, as well as touching any wounds or scratches. And finally, being scratched or bitten by a rodent can lead to serious health problems, their saliva can contain a multitude of diseases.
The most effective solution to rodent infestations is to prevent them from gaining access to your property in the first place.