Based on the totality of the evidence, on June 6, 2024, FDA initially advised the manufacturers of the licensed and authorized COVID-19 vaccines that the COVID-19 vaccines (2024-2025 Formula) for use in the United States beginning in fall 2024 should be monovalent JN.1 vaccines.
FDA has continued to monitor the circulating strains of SARS-CoV-2. Based on the most current available data, along with the recent rise in cases of COVID-19 in areas of the country, the agency has further determined that the preferred JN.1-lineage for the COVID-19 vaccines (2024-2025 Formula) is the KP.2 strain, if feasible.