医院中各种病人密集,各种病原微生物较多,属于重度污染环境,也是传染病高发区。对于有害生物而言,医院建筑结构复杂,食物、饮水丰富,温湿度适宜,适宜有害生物活动、栖息、生存、繁殖,因而种群密度高,媒介生物性疾病传播的可能性大,防制难度也因医院的特殊性大大增加。因此,医院 A variety of patient-intensive hospitals, a variety of pathogenic microorganisms are more serious pollution of the environment, but also a high incidence of infectious diseases. For the pest, the hospital is complex in structure, rich in food and drinking water, suitable for temperature and humidity, suitable for pest activities, habitat, survival and reproduction. Therefore, the population density is high, the possibility of transmission of vector biological diseases is large, Due to the special nature of the hospital greatly increased. Therefore, the hospital