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作者选择50名长期戴戒指的内科和外科病房护士,对其戒指下的手指皮肤作了为期五个月的细菌学调查。采样时,先除去戒指,用拭子从戒指下的皮肤处采样;另于戴戒指手指旁边的另一手指的同一部位亦同时用拭子采样,作为对照。然后将拭子置于不同培养基中进行培养,并作常规试验。对戒指部位查出革兰氏阴性杆菌阳性者每隔一段时间再行采样检查,共达五个月。
The author selected 50 long-term wearing ring medical and surgical ward nurses, finger ring under his finger made a five-month bacteriology investigation. Sampling, remove the ring first, with a swab from the skin under the ring at the sampling; the other finger next to the finger wearing the same part of the same time with a swab sampling, as a control. The swabs were then placed in different media for culture and routinely tested. Found on the ring part of Gram-negative bacillus positive again at intervals sampling again for a total of up to five months.