Medical contraindications to COVID-19 vaccination include immediate or severe allergic reaction (e.g., anaphylaxis) after a previous dose or component of a COVID-19 vaccine or known allergy to a component of a COVID-19 vaccine.
The known risks of COVID-19 illness and its related, possibly severe complications, such as long-term health problems, hospitalization and even death, far outweigh the potential risks of having a rare adverse reaction to vaccination like myocarditis or blood clots.
These "immune effects" include pain where the needle went in, fever, chills, headache, fatigue and body aches. They can last for a few hours up to a few days. Acetaminophen or ibuprofen can ease these side effects, but these medicines should be taken after receiving the vaccine.
The reported side effects of the mRNA vaccines were temporary symptoms such as fever and muscle aches, similar to what some people experience after getting other vaccines. Most common side effects of a vaccine are identified in studies before the vaccine is licensed.
Serious side effects that could cause a long-term health problem are extremely unusual following any vaccination, including COVID-19 vaccination. The benefits of COVID-19 vaccination outweigh the known and potential risks.
Monitoring of the Moderna COVID-19 vaccine has found 10 cases of anaphylaxis after the administration of 4,041,396 first doses of the Moderna COVID-19 vaccine. In 9 out of these 10 cases of anaphylaxis, the recipient of the vaccine had onset of symptoms within 30 min of administration.
Commonly reported side effects in the clinical trial included injection site pain (sore arm), redness and swelling, fatigue, headache, muscle and/or joint pain, chills, fever, swollen lymph nodes, nausea and decreased appetite.
November 08, 2021 If you experienced side effects when you were vaccinated initially, you may wonder if you'll have any noticeable symptoms in response to your booster shot. While you may have some side effects, they should be no worse than what you experienced originally and may well be milder.
This is normal and expected, but it doesn't happen to everyone. Even if you feel worse after the second shot, the side effects should still resolve within a few days.
The Pfizer and Moderna vaccines were created using messenger RNA (or mRNA) technology, which has been used for about 10 years in cancer treatment, with no long-term effects detected. And even before that, scientists had been working with mRNA technology for years. 3. mRNA technology does not alter your DNA.
FDA does not have specific safety concerns with a vaccine that utilizes this technology.
mRNA vaccines are safe and effective.mRNA vaccines have been held to the same rigorous safety and effectiveness standards as all other types of vaccines in the United States.