- www.cdc.gov/flu/prevent/vaccine-benefits.htm
- www.cdc.gov/flu/prevent/vaxsupply.htm
- www.cdc.gov/vaccines/pandemic-guidance/index.html
- www.mayoclinic.org/diseases-conditions/flu/in-depth/flu-shots/art-20048000
- www.healthline.com/health-news/you-can-get-flu-and-covid19-at-the-same-time
- https://vaccinateyourfamily.org/vaccines-diseases/current-flu-season
- www.cnn.com/2020/09/11/health/covid-flu-together-health-impact/index.html
- www.precisionvaccinations.com/when-should-we-get-flu-shots-year