Today, more than 500 000 are afflicted by yaws, which is caused by a spiral bacteria that penetrates through a cut in the skin resulting in bumps that burst, ulcerate and spread over the body.

今天，有50多万人受到雅司病感染。 雅司病是由螺杆菌引起，病菌通过患者皮肤上的伤口侵入，导致肿块，溃破后形成溃疡，遍布患者身体。

youdao

Results Cut the lumbar intervertebral marrow core through the skin, followed by different kinds of Chinese traditional medicine. 96% of 23 cases have good effect.

结果进行经皮腰椎间盘髓核切割术结合术后中医分型中药治疗23例，效果优良率达到96%。

youdao

Bacteria and other microorganisms can enter the body through a cut in the skin.

VOA: special.2011.01.26

Both types of bacteria can live harmlessly on your skin until they enter through a cut or other wound and cause an infection.

CNN: Impetigo