Skip to main content
          Skip to FDA Search
          Skip to in this section menu
          Skip to footer links


U.S. flagAn official website of the United States government

					Here’s how you know
          			Dot gov**The .gov means it’s official.**Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
							      SSL**The site is secure.** The **https://** ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely. 
			U.S. Food and Drug Administration
				
        Search
            Menu
							
						Search FDA
									
									Submit search 
		Featured
							Contact FDA
	                FDA Guidance Documents
	                Recalls, Market Withdrawals and Safety Alerts
	                Press Announcements
	                Warning Letters
	                Advisory Committees
	                En Español

					Products
            Food
							Drugs
							Medical Devices
							Radiation-Emitting Products
							Vaccines, Blood, and Biologics
							Animal and Veterinary
							Cosmetics
							Tobacco ProductsTopics
            About FDA
							Combination Products
							Regulatory Information
							Safety
							Emergency Preparedness
							International Programs
							News and Events
							Training and Continuing Education
							Inspections and Compliance
							Science and ResearchInformation For
            Consumers
	            Patients
	            Industry
	            Health Professionals
	            Federal, State and Local Officials 
 In this section:

                Lot Release

Lot Release

                        Lot Distribution Database (LDD)
          Seasonal Information for Influenza Virus Vaccine Home
          Vaccines, Blood & Biologics
          Guidance, Compliance & Regulatory Information (Biologics)
          Biologics Post-Market Activities
          Lot Release
          Seasonal Information for Influenza Virus VaccineLot Release Seasonal Information for Influenza Virus Vaccine
  
  	
    Share
    Post
    Linkedin

    Email
    PrintEach year, the FDA, World Health Organization, the Centers for Disease Control and Prevention and other public health experts collaborate on the review of influenza disease surveillance and laboratory data collected from around the world in an effort to identify strains that may cause the most illness in the upcoming season. Based on that information and on the recommendations of the FDAs Vaccines and Related Biological Products Advisory Committee, the FDA selects the different influenza strains each year that manufacturers should include in their vaccines for the U.S. population for the upcoming influenza season. The closer the match between the circulating strains causing disease and the strains in the vaccine, the better the protection against influenza.

Influenza Virus Vaccine Composition and Lot Release information from previous seasons is available in the FDA Archive. CBER will no longer post lot release information for seasonal influenza vaccines after June 2022.

Influenza Virus Vaccine Composition

Influenza Vaccine for the 2023-2024 Season
	Influenza Vaccine for the 2022-2023 Season
	Influenza Vaccine for the 2021-2022 Season
	Influenza Vaccine for the 2020-2021 SeasonRelated Information

Influenza Virus Vaccine Safety & Availability
	Vaccines Licensed for Use in the United States
	Influenza A (H1N1) 2009 Monovalent Vaccines Composition and Lot ReleaseResources For You

Consumers (Biologics)
	Healthcare Providers (Biologics)
	Industry (Biologics)
	About the Center for Biologics Evaluation and Research (CBER)

                                                                                  Content current as of:
      07/03/2023
              
              
Regulated Product(s)
		 Biologics
			  			     			  						              
			
			 
			  VaccinesLot Release

          
                        Lot Distribution Database (LDD)
          Seasonal Information for Influenza Virus Vaccine
 
 Footer Links
    FDA Archive
          About FDA
          Accessibility
      Visitor Information
          Website Policies / Privacy
          No FEAR Act
          Vulnerability Disclosure Policy
      FOIA
          HHS.gov
          USA.gov
    Contact FDA
      Follow FDA on Facebook
      Follow FDA on X
      Follow FDA on Instagram
      Follow FDA on LinkedIn
      View FDA videos on YouTube
      Subscribe to FDA RSS feeds
    FDA Homepage
    Contact Number
      1-888-INFO-FDA (1-888-463-6332) Back toTop