微生物在自然环境中是无处不在的 ,灰尘及一些杂物中常隐匿着病原体并成为其生长的土壤。所以保持洁净 ,防止灰尘聚积是保证健康的首要条件。虽然微生物很少能直接引起疾病的传播 ,但是脏物体上的病原体常常能通过与之接触的医护人员的手或医疗器械而间接传播疾病。对于肉眼可? Microorganisms are ubiquitous in the natural environment. Dust and some impurities often hide pathogens and become the soil for their growth. Therefore, maintaining cleanliness and preventing accumulation of dust are the primary conditions for ensuring health. Although microbes rarely directly cause disease transmission, pathogens on dirty objects can often indirectly transmit disease through the hands or medical devices of the healthcare personnel with whom they are in contact. For the naked eye can be?