Individuals in the HIV Datamart who received their first ever HIV-positive diagnosis in Ontario (i.e. were not diagnosed elsewhere and then moved to Ontario and tested again). Individuals are considered newly diagnosed in Ontario if they have record of a nominal HIV-positive diagnostic test and no evidence of being previously diagnosed (i.e. no detectable viral load test or CD4 count before their diagnosis date, first VL after diagnosis not suppressed). These individuals are used to calculate time from HIV diagnosis to linkage to care and viral suppression.