HIV Seroprevalence

**Definition:** Studies of the number of cases where human immunodeficiency virus (HIV) is present in a specific population at a designated time. The presence in a given individual is determined by the finding of HIV antibodies in the serum (HIV SEROPOSITIVITY).

**Tree numbers:** - E05.318.372.500.950.375 - N05.715.360.330.500.950.375 - N06.850.520.450.500.950.375