1997～1998年,对西安市19家影楼的化妆工具、服装(含婚纱)与化妆师手,用浸有无菌生理盐水的棉拭涂抹采样。其中,手五指并拢,在指曲面从指根到指端来回涂抹两次,服装在5ｃｍ×5ｃｍ的规格板框内横竖各往返涂抹5次。将采样棉拭头剪入装有10ｍｌ生理盐水的试管中,洗脱棉拭上细菌。 From 1997 to 1998, 19 samples of makeup tools, clothes (including bridal gown) and makeup artist in 19 studio buildings in Xi’an were smeared with cotton swabs soaked in sterile saline. Among them, the five fingers close together in the finger surface from the finger to the fingertip smear back and forth twice, clothing in 5cm × 5cm size board frame all round and round smear 5 times. The sampled cotton swabs were cut into test tubes containing 10 ml of physiological saline, and the swabs were swabbed with bacteria.