| HIV | Human Immunodeficiency Virus |
| AIDS | Acquired immunodeficiency syndrome |
| UNAIDS | the Joint United Nations Programme on HIV/AIDS |
| WHO | World Health Organization |
| NSIs | needle-stick and sharps injuries |
| CI | Confidence Interval |
| HBV | Viral Hepatitis Type B |
| HCV | Viral Hepatitis Type C |
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