 for persons aged ≥00 years. Regulatory information is available at <https://www.fda.gov/BiologicsBloodVaccines/Vaccines/ApprovedProducts/ucm000000.htm>.      -   Flublok Quadrivalent (RIV0; Protein Sciences, Meriden, Connecticut) was licensed by FDA in October 0000, for persons aged ≥00 years. Regulatory information is available at <https://www.fda.gov/BiologicsBloodVaccines/Vaccines/ApprovedProducts/ucm000000.htm>.      -   