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What to Know About the 2026-2027 U.S. Flu Season

Influenza Vaccine for the 2026-2027 Season

The Food and Drug Administration (FDA) Vaccines and Related Biological Products Advisory Committee (VRBPAC) met on March 12, 2026, to discuss and make recommendations on the selection of influenza viruses for the composition of the flu vaccines for the 2026-27 U.S. influenza season.

The committee recommended that the trivalent formulation of egg-based influenza vaccines for the U.S. 2026-27 influenza season contain the following:

  • an A/Missouri/11/2025 (H1N1)pdm09-like virus;
  • an A/Darwin/1454/2025 (H3N2)-like virus; and
  • a B/Tokyo/EIS13-175/2025 (B/Victoria lineage)-like virus.

The committee recommended that the trivalent formulation of cell or recombinant influenza vaccines for the U.S. 2026-27 influenza season contain the following:

  • an A/Missouri/11/2025 (H1N1)pdm09-like virus
  • an A/Darwin/1415/2025 (H3N2)-like virus; and
  • a B/Pennsylvania/14/2025 (B/Victoria lineage)-like virus.

Source: FDA

Campus Safety Policies

Working or Training in Clinical Buildings

It is UT Southwestern's policy (HSO-203: Influenza Vaccination) that all faculty, fellows, residents, staff, and students working and/or training in our University Hospital and/or clinics are required to maintain annual compliance on or before Nov. 15. Steps for maintaining annual compliance are discussed below. Individuals who fail to comply with this policy may be subject to disciplinary action.

Working or Training in Nonclinical Buildings

In keeping with UT Southwestern’s commitment to safety and to reducing the incidence of influenza on campus, faculty and staff who are not covered individuals under this policy are also encouraged, but not required, to maintain annual compliance.

Vaccination Sites

Convenient vaccination sites will be available across campus with flexible dates and times to make it easy for all to stay healthy.

ReadySet

ReadySet is a web-based electronic health record (EHR) system used exclusively by UTSW Occupational Health to store and maintain employee health records. ReadySet is not integrated with Epic/MyChart, and Occupational Health does not have access to health information in Epic. Therefore, if a UT Southwestern employee is also a UTSW patient, these records are completely separate from each other. Occupational Health does not have access to UTSW employee/patient records in Epic. Most employees are familiar with ReadySet because they are required to complete various health surveys annually for compliance and surveillance.

For help with ReadySet access and use, please email Occupational Health.

Be Compliant

Complying with UTSW policy is easy. UTSW employees have three compliance options.

  1. Receive the flu vaccine with UTSW Occupational Health
    1. Log in to Single Sign-On (SSO) or ReadySet Mobile.
    2. Click on Health Surveys on the left-hand side of the screen.
    3. Click on Seasonal Flu Immunization Survey and complete the survey.
    4. Click “Appointments” and select “Seasonal Flu Immunization – Employee.”
    5. Select your desired location and appointment date/time.
    6. If necessary, you may reschedule your appointment up to 24 hours in advance.
    7. Receive your updated flu compliance sticker at your scheduled appointment.
  2. Receive the flu vaccine elsewhere (not with Occupational Health)
    1. Log in to Single Sign-On (SSO) or ReadySet Mobile.
    2. Click on Health Surveys on the left-hand side of the screen.
    3. Click on Seasonal Flu Immunization Survey. Complete the survey and select “I Already Received” on question 1.
    4. Upload your flu vaccine documentation to ReadySet by navigating to MyHealth > Documents > Upload Document.
    5. Type your UTSW mail code in the comments section of the upload process. Your four-digit mail code can be found by searching your name in the phone directory.
    6. An Occupational Health nurse will review and chart your vaccine in ReadySet for compliance.
    7. An FY27 flu compliance sticker will be sent to the mail code you provide.
    8. Please note that proof of vaccination must be an official document that includes the following information:
      • Pharmacy or clinic name
      • Employee’s full name
      • Vaccine name
      • Date vaccine given
    9. To avoid duplicating records, do not fax or email your flu vaccination proof to Occupational Health.
  3. Decline the Flu Vaccine
    1. Log in to Single Sign-On (SSO) or ReadySet Mobile.
    2. Click on Health Surveys on the left-hand side of the screen.
    3. Click on Seasonal Flu Immunization Survey.
    4. Complete the survey and select “I Do Not Want” on question 1. Please note that you will be required to complete the entire survey and type your name in the signature box before pressing “Submit Final.”
    5. All unvaccinated covered individuals will be required to wear a protective mask while accessing direct patient care areas in accordance with the HSO-203: Influenza Vaccination policy during the peak flu season.
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