Respiratory Viruses (COVID-19, Flu, and RSV) Vaccine Recommendations

Page last updated 5/2/2024.


Vaccines lower the risk of severe disease. Ask your healthcare provider about which vaccines are right for you this season.

Vaccines for Respiratory Viruses
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There is no recommended waiting period between getting a COVID-19 vaccine and other vaccines. You can get a COVID-19 vaccine and other vaccines, including a flu vaccine, at the same visit.

See below, or click the following buttons, to learn more about vaccine recommendations for COVID-19, flu, and RSV. 



  • Everyone Aged 5 Years and Older
    • 1 dose of the updated (2023-2024) COVID-19 vaccine, None of the updated 2023-2024 COVID-19 vaccines is preferred over another.
  • Younger Children and Infants (Aged 6 Months to 4 Years) Who Got COVID-19 Vaccine(s) Before September 12, 2023
  • Younger Children and Infants (Aged 6 Months to 4 Years) Who Are Not Vaccinated
  • People Who May Get Additional Updated COVID-19 Vaccines
    • People who are moderately or severely immunocompromised (have weakened immune systems) may get additional doses of updated COVID-19 vaccines.
    • People who are immunocompromised and 65+ years of age who received 1 dose of any updated 2023-2024 COVID-19 vaccine should receive 1 additional dose of an update 2023-2024 COVID-1 vaccine at least 2 months after the previous updated dose. 
  • If You Recently Had or Currently Have COVID-19
    • You still need to stay up-to-date with your vaccines. But you may consider delaying your next vaccine dose by 3 months. 

Learn more about vaccines for COVID-19

Influenza (Flu)

Who Should Be Vaccinated?

Everyone 6 months of age and older, with rare exceptions, should get a flu vaccine every season. Different flu vaccines are approved for different age groups

  • People Aged 6 months and Older
  • People Aged 2 through 49 Years Old
    • A nasal spray flu (live) vaccine is also available for those ages 2 through 49 years old. 
    • People who are pregnant and people with certain medical conditions should not receive the nasal spray vaccine.
  • Adults Aged 65 and Older
    • Three specific flu vaccines are preferentially recommended for people 65 years and older over other flu vaccines. These vaccines are preferred because a review of existing studies suggested that in this age group, these vaccines are potentially more effective than standard dose unadjuvanted flu vaccines.
    • People 65 and older should get a higher dose or adjuvanted flu vaccine, including: Fluzone High-Dose Quadrivalent Flublok Quadrivalent , or  Fluad Quadrivalent .

Learn more about preventing seasonal flu.


Who Should Be Vaccinated?

The Centers for Disease Control and Prevention (CDC) recommends either maternal RSV vaccination or infant immunization with monoclonal antibodies. Most infants will not need both.

  • Infants and Young Children
    • 1 dose of nirsevimab for all infants younger than 8 months born during or entering their first RSV season.
    • 1 dose of nirsevimab for infants and children 8-19 months old who are increased risk for severe RSV disease and entering their second RSV season.
    • A different monoclonal antibody, palivizumab, is limited to children under 24 months of age with certain conditions that place them at high risk for severe RSV disease. It must be given once a month during RSV season.  
  • Pregnant People
    • 1 dose of maternal RSV vaccine during weeks 32 through 36 of pregnant, administered September through January.
  • Adults Aged 60 Years and Older
    • 1 dose of the RSV vaccine using shared clinical decision-making.
    • Talk to your healthcare provider to see if RSV vaccination is right for you. If so, the best time to get vaccinated is in late summer and early fall – just before RSV usually starts to spread in the community.

Learn more about RSV Immunizations

For more information, contact the Epidemiology Unit at (619) 692-8499 or send us an e-mail.