Can you put some numbers on the risks?
Information about the index partner (the person the patient had sex with) |
Exposure |
Risk if the index HIV status not known |
Estimated risk of HIV transmission per exposure from a HIV-positive individual not on suppressive ART |
A man who has sex with men living in England | Receptive anal sex (index penis into patient anus) | 1 in 4,000 | 1 in 90 |
A man who has sex with men living in England | Insertive anal sex (patient’s penis into index anus) | 1 in 28,000 | 1 in 666 |
A man who has sex with men living in England | Receptive vaginal sex (index penis into patient’s vagina) | 1 in 43,000 | 1 in 1000 |
A man who injects drugs | Receptive vaginal sex (index penis into patient’s vagina) | 1 in 180,000 | 1 in 1,000 |
A heterosexual man living in England | Receptive vaginal sex (index penis into patient’s vagina) | 1 in 170,000 to 1 in 5 million | 1 in 1,000 |
A women living in England | Insertive vaginal sex (patient’s penis into index vagina) | 1 in 140,000 to 1 in 12 million | 1 in 1,219 |