Flu: What You Need to Know
Fever
Body Aches
Headache
Chills
Fatigue
1. Key Facts about Influenza (Flu) & Flu Vaccine. (2014 September 9). Retrieved January 30, 2015 from http://www.cdc.gov/flu/keyfacts.htm.
2. The Flu Season. (2014 October 22). Retrieved February 5, 2015 from http://www.cdc.gov/flu/about/season/flu-season.htm.
3. Estimated Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination in the United States (2017 April 19). Retrieved January 31, 2018 from https://www.cdc.gov/flu/about/disease/burden.htm.