“…During the 1980s and 1990s, HIV prevalence studies typically used rapid particle agglutination HIV test kits or western blot in local clinics (Table 2). In the 2000s, there was an increase in the use of ELISA tests due to their improved accuracy and adoption in higher-resource countries [31,32,54,55,69]. Since the early 2010s, more studies reported using a rapid antibody/antigen combination as the initial test followed by additional rapid antibody tests if the first result was positive [6,37,41,42,47,48,63,64].…”