They are designed to protect both patients and healthcare professionals from the transmission of blood-borne diseases such as Hepatitis B and HIV.

其目的是保护病人和医护人员免受血液传染性疾病，如乙型肝炎和HIV病毒的感染。

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In very small amounts (say, a few teaspoons), and if the blood is free from pathogens (such as the many blood-borne diseases), blood might not harm you.

食用少量的血液(比如说，几小匙)，并且血液没带有一些血液传染病的病原体时，它可能不会有害身体。

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Objective to examine blood of surgical patients in order to control blood-borne diseases effectively and do well at occupational protection of medical workers.

目的对手术患者血液检测结果分析，以便做好医务人员职业防护，有效控制血液传播疾病。

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