| Type of exposure | Percentage of global total |
|---|---|
| Blood transfusion | 3-5 |
| Perinatal | 5-10 |
| Sexual intercourse | 70-80 |
| (vaginal) | (60-70) |
| (anal) | (5-10) |
| Injecting drug use (sharing needles, etc) | 5-10 |
| Health care (needlestick injury, etc) | <0.01 |
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