On December 17, 2025, the World Health Organization (WHO) granted prequalification status to two rapid antigen tests designed to detect SARS-CoV-2, the virus responsible for COVID-19. The approved tests are the SD Biosensor STANDARD Q COVID-19 Ag Test and the ACON Biotech Flowflex SARS-CoV-2 Antigen Rapid Test (Self-Testing). This announcement represents a significant milestone, as it is the first time such tests for COVID-19 have received official prequalification from WHO. This development