Market (feasibility)
There is currently one maternal RSV Pre-F vaccine (Abrysvo®, Pfizer) and two long-action mAbs, nirsevimab (Beyfortus®, Sanofi) and clesrovimab (Enflonsia®, MSD), that have received marketing authorisation.Go to footnote 1 Two additional mAbs received market authorization in China.Go to footnote 2, Go to footnote 3
Currently only the RSV Pre-F maternal vaccine (Abrysvo®, Pfizer) is WHO prequalified.Go to footnote 4 The multidose vial presentation was also prequalified by WHO, on 24 August 2026.Go to footnote 4
Detailed information on the different products can be found in the comparison table.Go to footnote 5
- Go back to footnote reference 1
World Health Organization (2026) Full vaccine product list (https://www.who.int/teams/immunization-vaccines-and-biologicals/vaccine-access/mi4a/mi4a-vaccine-purchase-data, accessed 24 June 2026).
- Go back to footnote reference 2
National Medical Products Administration. NMPA approves retavibart injection for marketing. Beijing: National Medical Products Administration; September 3, 2026. (https://www.nmpa.gov.cn/zhuanti/cxylqx/cxypxx/20260903111247181.html, accessed 23 September 2026).
- Go back to footnote reference 3
National Medical Products Administration. NMPA approves clulevibart injection for marketing. Beijing: National Medical Products Administration; September 3, 2026. (https://www.nmpa.gov.cn/zhuanti/cxylqx/cxypxx/20260903110924138.html, accessed 23 September 2026).
- Go back to footnote reference 4
World Health Organization (2026) Prequalified Vaccines (https://extranet.who.int/prequal/vaccines/prequalified-vaccines, accessed 24 June 2026).
- Go back to footnote reference 5
NITAG Resource Center. Vaccine Evidence Compendium: RSV vaccines. 2026. See detailed product comparison table