东弗吉尼亚医学院的皮肤病学助理教授莎尔克称，在显微镜下，受损的皮肤与因长时间日晒而损伤的皮肤组织十分相似。

Salkey, an assistant dermatology professor at Eastern Virginia Medical School, said that under the microscope, the affected skin resembles skin damaged by long-term sun exposure.

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细菌的DNA与通常在足部皮肤发现的菌株十分相似。

The bacterial DNA was very similar to strains commonly found on the skin of the foot.

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