If You Feel This, Your COVID Vaccine Is Working
Certain side effects are to be expected after your COVID vaccine. The CDC says these "are normal signs that your body is building protection. These side effects may affect your ability to do daily activities, but they should go away in a few days. Some people," they note, "have no side effects." So which side effects are the "good" ones and which are ones you should worry about? Read on—and to ensure your health and the health of others, don't miss these Signs Your Illness is Actually Coronavirus in Disguise.
You Might Feel a Pain, Redness or Swelling on the Arm Where You Got the Shot
Dr. Anthony Fauci, the chief medical advisor to the President and the director of the National Institute of Allergy and Infectious Diseases, said he felt a little pain in his arm. "Getting that reaction at the site is exactly what we would expect a vaccine to do that is trying to mimic a pathogen without causing the disease," Deborah Fuller, a vaccinologist at the University of Washington School of Medicine, in Seattle, tells National Geographic.
You Might Have a Fever or Chills
A fever, chills and the other side effects on this list are a good sign, say doctors. "And we know why this happens—because the vaccine is very potent in inducing an immune response. That's one of the reasons why we're getting such high levels of protection" against COVID-19, Dr. Peter Hotez, a vaccinologist and dean of the National School of Tropical Medicine at Baylor College of Medicine, told CNN.
You Might Feel Aches or Muscle Pain
"The vaccine, because you're giving it in the arm, it gives a systemic reaction. You know that because sometimes after the second dose you feel a little achy, a little chilly, which means the immune system is really getting revved up," said Dr. Fauci in an interview with MSNBC.
You Might Be Tired or Fatigued
Fauci said he felt a bit tired after his vaccine. "About 65% of vaccine recipients in Pfizer's and Moderna's trials, and 38% in Johnson & Johnson's, developed fatigue," says Business Insider.
You May Get a Headache
"If you're experiencing common side effects such as a headache, fever or chills after receiving the COVID-19 vaccine, it's perfectly fine to take an over-the-counter pain reliever such as ibuprofen or acetaminophen to relieve your discomfort, experts say," according to AARP.
You May Get Nausea
Says the Cleveland Clinic: "The data shows that side effects are more commonly felt after the second dose of Pfizer or Moderna's vaccine rather than after the first dose. With Johnson & Johnson, the most commonly reported side effects were arm soreness, headache, muscle aches and nausea. Most of the side effects occurred one to two days after vaccination."
You May Feel Nothing at All!
Not everyone experiences side effects, and that does not mean your vaccine isn't working. "The big take-home message is that not having side effects, or [having] not as severe side effects, is no reason to worry," John Wherry, an immunologist at the University of Pennsylvania, told Scientific American.
When to Worry About Any Side Effects
"In most cases, discomfort from pain or fever is a normal sign that your body is building protection," says the CDC. "Contact your doctor or healthcare provider:
- If the redness or tenderness where you got the shot gets worse after 24 hours
- If your side effects are worrying you or do not seem to be going away after a few days
If you get a COVID-19 vaccine and you think you might be having a severe allergic reaction after leaving the vaccination site, seek immediate medical care by calling 911." And to protect your life and the lives of others, don't visit any of these 35 Places You're Most Likely to Catch COVID.
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