NBC Chicago
April 13, 2021
Experiencing side effects isn’t necessarily a bad thing. In fact, it’s a sign your body is responding.
“The good news on our part is that a brisk response equals an effective response,” Dr. Mark Loafman, chair of family and community medicine for Cook County Health in Illinois, told NBC 5. “It tells us that the vaccine is working. Our body’s forming a robust immune response and we feel that that’s a positive thing. So we tend to see the vaccines that have a higher efficacy rate also have more of the so-called side effects or the symptoms because they work so well.” Does One Vaccine Report More Side Effects Than the Others?
According to Pfizer, about 3.8% of their clinical trial participants experienced fatigue as a side effect and 2% got a headache.