New Delhi, Dec. 25 -- The World Health Organization (WHO) said on December 24, 2025, that it has prequalified two rapid antigen diagnostic tests (Ag-RDTs) for SARS-CoV-2, the virus that causes COVID-19.

According to WHO, the two tests are the SD Biosensor STANDARD Q COVID-19 Ag Test and the ACON Biotech Flowflex SARS-CoV-2 Antigen Rapid Test (Self-Testing).

WHO stated that this is the first time any rapid antigen tests for COVID-19 have achieved WHO prequalification, marking a significant regulatory milestone nearly three years after the end of the pandemic's emergency phase.

WHO said prequalification provides long-term assurance of quality, safety and performance, unlike emergency authorisations that are time-limited. According to WHO...