Substantial |
HIV positive and viremic (i.e., viral load > 40 copies/mL) HIV status unknown, but from a population with high HIV prevalence compared with the general population (e.g., men who have sex with men, people who inject drugs)
|
Low but nonzero |
|
Negligible or none |
Confirmed HIV negative HIV positive with confirmed viral load < 40 copies/mL and no known sexually transmitted infections present at time of exposure HIV status unknown, general population
|