Exposure route | Risk per 10,000 exposures to an infected source (risk) | |
Blood-borne exposure | Blood transfusion | 9000 (9/10) |
Needle-sharing injection drug use | 67 (1/150) | |
Percutaneous needle stick | 23 (1/435) | |
Mucous membrane exposure to blood (eg, splash to eye) | 10 (1/1000) | |
Sexual exposure | Receptive anal intercourse | 138 (1/72) |
Insertive anal intercourse | 11 (1/900) | |
Receptive penile-vaginal intercourse | 8 (1/1250) | |
Insertive penile-vaginal intercourse | 4 (1/2500) | |
Receptive or insertive penile-oral intercourse | 0-4 | |
Other | Biting, spitting, throwing body fluids (including semen and saliva), sharing sex toys | Negligible |
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