risk of HIV transmission per exposure from a known HIV-positive individual not on ART (Anti-retroviral therapy)
| estimated risk of HIV transmission per exposure from a known HIV-positive individual not on ART |
receptive anal intercourse | 1 in 90 |
receptive anal intercourse with ejaculation | 1 in 65 |
receptive anal intercourse no ejaculation | 1 in 170 |
insertive anal intercourse | 1 in 666 |
insertive anal intercourse not circumcised | 1 in 161 |
insertive anal intercourse and circumcised | 1 in 909 |
receptive vaginal intercourse | 1 in 1000 |
insertive vaginal intercourse | 1 in 1,219 |
semen splash to eye | <1 in 10,000 |
receptive oral sex (giving fellatio) | < 1 in 10,000 |
insertive oral sex (receiving fellatio) | < 1 in 10,000 |
blood transfusion (one unit) | 1 in 1 |
needlestick injury | 1 in 333 |
sharing injecting equipment (includes chemsex) | 1 in 149 |
human bite | < 1 in 10,000 |
Reference:
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