What are the common side effects of the Moderna COVID-19 booster vaccine?

Fever, headache, fatigue, and pain at the injection site were the most commonly reported side effects, and overall, most side effects were mild to moderate.

Do COVID-19 booster shots cause worse side effects?


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.

What are the some of the common side effects of COVID-19 booster shots?


Most people who get COVID-19 booster shots experience mild to moderate side effects. Commonly reported side effects include: Pain at the injection site. Fatigue.

Redness and/or swelling at the injection site Headache Muscle pain Joint pain

Is it possible to feel sick after a COVID-19 booster shot?

If you feel sick after the booster shot, it is normal and those symptoms should relieve themselves in a few days. Common side effects of the booster are similar to the vaccine: Fatigue. Fever.Chills Headache Pain at the injection site Side effects from the vaccine can be a sign that the vaccine is working.

What are the common side effects of the Moderna COVID-19 vaccine?

The most commonly reported side effects were pain at the injection site, tiredness, headache, muscle pain, chills, joint pain, nausea and vomiting, swollen lymph nodes in the same arm of the injection and fever. Side effects typically started within two days of vaccination and resolved two or three days later.

COVID-19 survivor has rare side effect of COVID-19 treatment -- a massively swollen tongue

When will my COVID-19 vaccine side effects go away?

Side effects can affect your ability to do daily activities, but they should go away in a few days.

When do COVID-19 vaccine side effects appear?


You probably experienced COVID-19 vaccine side effects fairly quickly when you had your initial injections. The same is true for COVID-19 vaccine booster shots: Most people notice side effects within the first 24 hours. The symptoms typically only last a day or two. Some people don't notice any side effects.

Does having fever, body pain, and swollen lymph nodes after the COVID-19 vaccine mean I am sick?

These symptoms do not mean you are sick. They signal that your immune system is responding to the shot and building up protection against the coronavirus.

Is it normal that I feel worse after second COVID-19 shot?


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.

Is it normal to have side effects after second COVID-19 vaccine?

Side effects after your second shot may be more intense than the ones you experienced after your first shot. These side effects are normal signs that your body is building protection and should go away within a few days.

Is it normal that I feel tired after taking the Pfizer COVID-19 booster?


The most common AEs included pain at the injection site (23.5%), fatigue (9.7%), and malaise (7.2%) (Table 2). Most of the respondents (67.8%) reported that their general feeling after the booster was similar to the feeling after the second dose; 18.7% and 11.1% reported a milder or worse response, respectively.

What are the common side effects of the Pfizer-BioNTech COVID-19 vaccine?


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.

What are some of the side effects of the COVID-19 vaccine in women?


COVID-19 vaccines can cause swelling in your lymph nodes or arm. Women who have been vaccinated against COVID-19 can develop enlarged underarm lymph nodes on the same side where they had the shot. It's more common for this to happen after boosters and additional doses.

How long after the COVID-19 booster is it effective?


The first COVID-19 booster shot is now in the rearview mirror for millions of Americans -- for the 28% who got it, at least -- but new data finds it's less effective after about 4 months. The CDC has already recommended a second booster for immunocompromised people.
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Should the booster shot be the same as the first two shots?

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The FDA has authorized three vaccine boosters — Pfizer-BioNTech, Moderna and Janssen/Johnson & Johnson — and determined that it is safe for individuals to receive a COVID-19 vaccine booster or additional dose that is a different brand than the initial dose or doses.

Do COVID-19 boosters use the same ingredients as existing vaccines?

Yes. COVID-19 boosters are the same ingredients (formulation) as the current COVID-19 vaccines. However, in the case of a Moderna COVID-19 vaccine booster, the dose is half of the amount of the vaccine people get for their primary series.

How can I reduce the pain after the COVID-19 vaccine?


To reduce pain and discomfort where the shot is given

  • Apply a clean, cool, wet washcloth over the area.
  • Use or exercise your arm.


What are the common side effects of the Johnson and Johnson COVID-19 vaccine?


Side effects that have been reported with the Janssen COVID-19 Vaccine include: Injection site reactions: pain, redness of the skin, and swelling. General side effects: headache, feeling very tired, muscle aches, nausea, fever. Swollen lymph nodes.

Is it normal to get headaches after the COVID-19 vaccine?


Mild to moderate headaches and muscle aches are common in the first three days after vaccination and don't require emergency care.

Is it normal for lymph nodes to swell after receiving the COVID-19 vaccine?

“It's completely normal. It's your immune system reacting to the vaccine, as it should.”

The enlarged lymph nodes may feel like a lump and be a little tender, or you may not notice them at all, Dr.Roy adds.

Can COVID-19 vaccine cause enlarged lymph nodes?

A COVID-19 vaccine can cause enlarged lymph nodes in your armpit or near your collarbone on the side of your body where you received the injection.

Should I go to work if I have fever after a vaccination against COVID-19?

Employees with fever should, ideally, be excluded from work pending further evaluation, including consideration for COVID-19 testing. If an infection is not suspected or confirmed as the source of their fever, they may return to work when they feel well enough.

How do you know if you are allergic to the COVID-19 vaccine?

An immediate allergic reaction happens within 4 hours after getting vaccinated and could include symptoms such as hives, swelling, and wheezing (respiratory distress).

How long will an arm be red and swollen after the COVID-19 vaccine?


It usually subsides within three to four days, although one report in JAMA Dermatology notes it can last up to 21 days after injection with the Moderna vaccine.

What should I do if I have swelling after receiving the COVID-19 vaccine?


Tell your doctor right away if you have a rash, itching, a fast heartbeat, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after receiving the vaccine.

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