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对本工程局所属各医院进行了细菌与真菌污染调查。对空气，以直径９ｃｍ普通营养琼脂平板沉降采样５ｍｉｎ；对物体表面，用棉拭在１００ｃｍ２内往返涂抹５次采样；对医护人员手，用棉拭从指根到指尖往返涂抹２次采样，检测。Ⅱ类场所（手术室、产房、供应室无菌室、烧伤病房
The hospital owned by the Engineering Bureau conducted a survey of bacterial and fungal contamination. On the air, with a diameter of 9cm ordinary nutrient agar plate sedimentation sampling 5min; on the surface of the object, with a cotton swab 100cm2 roundabout smear 5 times sampling; the hand of medical staff, cotton swab from the finger to the fingertip smear 2 times sampling, Detection. Class Ⅱ places (operating room, delivery room, supply room sterile room, burn ward