Rats are important vectors that carry many diseases to humans and pets, such as leptospirosis, rat fever (murine typhus, scrub thyphus), plague, gastrointestinal disorders, etc. Indirect damage is often caused by rats biting against buildings, houses, various items, wires, and electrical equipment, leading to short circuits inside the building. Therefore they are very dangerous to human life and property. They can also dig holes to live under buildings, dams, canals, or sewer pipes, causing the building or the soil on the bank to collapse. They can cause blockage in the drain or destroy agricultural productivity. The damage caused by rats contributed a considerable amount per year, so rats are classified as rodents carrying harmful pathogens to humans by inhaling or direct contact with urine, feces, or dust in residential areas. It has biological properties that can reproduce quickly. It also has a habit of nibbling and destroying materials, appliances, wires, and water pipes, damaging residents' buildings.