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COVID-19 vaccines: Get the facts

Coronavirus vaccine research Coronavirus vaccine challenges Pathways to develop and produce a COVID-19 vaccine The vaccine development timeline How to protect yourself and prevent COVID-19 infection Content What are the benefits of getting a COVID-19 vaccine? Should I get the COVID-19 vaccine even if I've already had COVID-19? What COVID-19 vaccines have been authorized or approved and how do they work? Can a COVID-19 vaccine give you COVID-19? What are the possible general side effects of a COVID-19 vaccine? What are the long-term side effects of the COVID-19 vaccines? Can COVID-19 vaccines affect the heart? What is the connection between the Janssen/Johnson & Johnson COVID-19 vaccine and Guillain-Barre syndrome? What are the symptoms of a blood clotting reaction to the Janssen/Johnson & Johnson COVID-19 vaccine? Do the COVID-19 vaccines protect against the COVID-19 variants? Are COVID-19 vaccines free? Can I get a COVID-19 vaccine if I have an existing health condition? Is it OK to take an over-the-counter pain medication before or after getting a COVID-19 vaccine? Is there anyone who should not get a COVID-19 vaccine? What are the signs of an allergic reaction to a COVID-19 vaccine? Can I get a COVID-19 vaccine if I have a history of allergic reactions? Can pregnant or breastfeeding women get the COVID-19 vaccine? Can a COVID-19 vaccine affect fertility or menstruation? What COVID-19 vaccine has been approved for kids? If children don’t frequently experience severe illness with COVID-19, why do they need a COVID-19 vaccine? How did the FDA determine the safety and effectiveness of the Pfizer-BioNTech COVID-19 vaccine for use in kids ages 12 through 15? Can I stop taking safety precautions after getting a COVID-19 vaccine? Can I still get COVID-19 after I’m vaccinated? Are COVID-19 vaccine additional doses or boosters recommended?

Can COVID-19 vaccines affect the heart?

In the U.S., there has been an increase in reported cases of myocarditis and pericarditis after mRNA COVID-19 vaccination, particularly in male adolescents and young adults age 16 and older. Myocarditis is the inflammation of the heart muscle, while pericarditis is the inflammation of the lining outside the heart. These reports are rare. The CDC is investigating to see if there is any relationship to COVID-19 vaccination.

Of the cases reported, the problem happened more often after the second dose of the COVID-19 vaccine and typically within several days after COVID-19 vaccination. Most of the people who received care felt better after receiving medicine and resting. Symptoms to watch for include:

  • Chest pain
  • Shortness of breath
  • Feelings of having a fast-beating, fluttering or pounding heart

If you or your child has any of these symptoms within a week of getting a COVID-19 vaccine, seek medical care.