The main cause of infection in occupational Settings is exposure to HIV-infected blood via a percutaneous injury (i.e. from needles, instruments, bites which break the skin, etc.).
在职业环境中受到感染的主要原因是皮肤上的伤口(如由针，医疗器械，或叮咬而造成的皮肤破损)接触了被HIV病毒污染的血液。
The only function of a gun is to kill. The more instruments of death and injury can be removed from our society, the safer it will be.
枪的唯一的功能是残杀。多一点死伤手段从社会移除，我们就会更安全。
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