Rats and Mice compete with humans for food. In some developing countries. It can cause starvation. Rodents are also hosts for human diseases, they transmit more than 131diseases including plague, urine typhoid fever, salmonellosis, Leptospirosis, Rat bite fever. Rats also occasionally bite people. In addition, they cause other damage, mainly by gnawing.
These rodents co-exist with humans and closely keep company with human habitats for food, water, and shelter. If living conditions for the rodents (food, water, and shelter), are right, they will multiply quickly. In your eutherian mammal management program, the essential initiative is to eliminate or management their food, water and shelter provisions.