Influenza Vaccine Dosing Algorithm: 6 Months-8 Years
INFLUENZA VACCINE DOSING ALGORITHM: 6 MONTHS−8 YEARS
                   
  Did the child receive at least 2 total doses of trivalent or quadrivalent vaccine before July 1, 2021*? Yes ▶ 1 dose of 2021−22 influenza vaccine  
         
      NoDon’t know     No/Don’t know        
    ▼   
    2 doses† of 2021−22  influenza vaccine
 
NOTES

For children aged 8yrs who require 2 doses of influenza vaccine, both doses should be administered even if the child turns 9yrs old between receipt of dose 1 and dose 2.

*The 2 doses need not have been received during the same season or consecutive seasons.

†Doses should be administered at least 4 weeks apart.
REFERENCES

Grohskopf LA, Alyanak E, Ferdinands JM, et al. Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices, United States, 2021–22 Influenza Season. MMWR Recomm Rep. 2021;70(No. RR-5):1–28. DOI: http://dx.doi.org/10.15585/mmwr.rr7005a1.

(Rev. 9/2021)

Topics:

Immunization Infectious Disease Influenza Pediatrics Vaccines