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References
  1. Centers for Disease Control and Prevention. Flu Symptoms and Complications. www.cdc.gov/flu/symptoms/symptoms.htm. Updated April 12, 2021. Accessed August 20, 2021.
  2. Centers for Disease Control and Prevention. Frequently Asked Influenza (Flu) Questions: 2021-2022 Season. www.cdc.gov/flu/season/faq-flu-season-2021-2022.htm. Updated August 6, 2021. Accessed August 20, 2021.
  3. Centers for Disease Control and Prevention. Influenza Antiviral Medications: Summary for Clinicians. www.cdc.gov/flu/professionals/antivirals/summary-clinicians.htm. Updated May 6, 2021. Accessed August 20, 2021.
  4. Chotpitayasunondh T, Fischer TK, Heraud JM, et al. Influenza and COVID-19: what does co-existence mean? Influenza Other Respir Viruses. 2021;15(3):407-412.
  5. Jones WA, de Cassia Castro R, Masters HL III, Carrico R. Influenza management during the COVID-19 pandemic: a review of recent innovations in antiviral therapy and relevance to primary care practice. Mayo Clin Proc Innov Qual Outcomes. 2021. [Epub ahead of print].
  6. McLean HQ, Belongia EA. Influenza vaccine effectiveness: new insights and challenges. Cold Spring Harb Perspect Med. 2021;11(6):a038315.
  7. Olsen SJ, Winn AK, Budd AP, et al. Changes in influenza and other respiratory virus activity during the COVID-19 pandemic—United States, 2020-2021. MMWR Morb Mortal Wkly Rep. 2021;70(29):1013-1019.