Mice are a part of the rodent family that includes rats and bandicoots. They are omnivorous, intrusive, smart, adaptable, alert and very fertile. Rodents are one of the most disastrous urban pests. They live at our expense, invade our homes, eat our food and damage our belongings. Symptoms like fever, chills, inflammation of the spinal cord/around the brain, muscle aches could be the result of LCMV, of which the primary carrier is the house mouse. If you're shocked at reading this, there's more.