Rodents are known to spread more than 35 diseases, including hantavirus, leptospirosis, lymphocytic choriomeningitis (LCMV), Tularemia and Salmonella. These diseases can be spread to humans directly by handling live or dead rodents, through contact with rodent feces, urine, or saliva, and through rodent bites. Additionally, the droppings and urine of house mice and rats contain allergens that can trigger rhinitis in susceptible individuals.