What is the most important ingredient in both Pfizer and Moderna COVID-19 vaccines?

The most important ingredient in both the Pfizer and Moderna vaccines is mRNA. The mRNA tells your cells how to make a protein from the coronavirus. Once your body knows how to make the protein, it can recognize COVID-19 and fight it. Learn more about how mRNA vaccines work.

Are there preservatives in moderna covid-19 vaccine?

The Moderna COVID-19 Vaccine multiple-dose vial contains a frozen suspension that does not contain a preservative and must be thawed prior to administration.

Are there preservatives in Pfizer-BioNTech COVID-19 vaccine?

The Pfizer-BioNTech COVID-19 Vaccine (COMIRNATY) has: No preservatives like thimerosal or mercury or any other preservatives.

Can the Moderna COVID-19 vaccine cause allergic reactions?

There is a remote chance that the Moderna COVID-19 Vaccine could cause a severe allergic
reaction. A severe allergic reaction would usually occur within a few minutes to one hour after
getting a dose of the Moderna COVID-19 Vaccine. For this reason, your vaccination provider
may ask you to stay at the place where you received your vaccine for monitoring after
vaccination. Signs of a severe allergic reaction can include:
• Difficulty breathing
• Swelling of your face and throat
• A fast heartbeat
• A bad rash all over your body
• Dizziness and weakness

Does the Moderna COVID-19 vaccine have latex in it?

No latex. The vial stoppers used to hold the vaccine also do not contain latex.

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Are there any allergic reactions to the Moderna and Pfizer COVID-19 vaccines?

The Moderna and Pfizer-BioNTech COVID-19 vaccines are the first two COVID-19 vaccines authorized by the Food and Drug Administration for emergency use and already have been given to millions of Americans. Most of the rare, severe allergic reactions to these vaccines have occurred in people with a history of allergies.

Can you get the mRNA COVID-19 vaccine if you are allergic to the ingredient in the vaccine?

If you are allergic to an ingredient in a COVID-19 vaccine
If you have had a severe allergic reaction or an immediate allergic reaction—even if it was not severe—to any ingredient in an mRNA COVID-19 vaccine, you should not get either of the currently available mRNA COVID-19 vaccines (Pfizer-BioNTech and Moderna).

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).

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.

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

The most commonly reported side effects by individuals who received a booster dose of the Moderna COVID-19 Vaccine after completion of a two-dose primary series were pain, redness and swelling at the injection site, as well as fatigue, headache, muscle or joint pain and chills.

Are there any safety concerns concerning mRNA technology of the Pfizer-BioNTech COVID-19 Vaccine?

FDA does not have specific safety concerns with a vaccine that utilizes this technology.

Who is at higher risk of getting blood clots from the Johnson & Johnson COVID-19 vaccine?

They are also more likely to occur in women who are pregnant or on oral contraceptives, or in people who have hereditary disorders that predispose them to blood clotting. As mentioned above, the clotting condition associated with the J&J vaccine is called thrombosis with thrombocytopenia (TTS).

What are the severe allergic reactions to COVID-19 mRNA vaccines?

“Overall, severe allergic reactions to COVID-19 mRNA vaccines, including life-threatening anaphylaxis reactions such as low blood pressure and difficulty breathing, are rare, on the order of five cases per million vaccine doses administered,” noted Dr. Guerrerio.

Can Johnson and Johnson COVID-19 vaccine cause blood clots?

The FDA updated the J&J Janssen vaccine EUA with an additional warning, noting that “women under 50 should be made aware of a rare risk of blood clots and low platelets following vaccination,” said Dr. Fryhofer. “They also need to know there are other COVID vaccines out there that don’t pose this small risk.

What to do if you get an allergic reaction from the COVID-19 vaccine?

If you get a COVID-19 vaccine and you think you might be having a severe allergic reaction after leaving the vaccination provider site, seek immediate medical care by calling 911.

Are egg products used in COVID-19 vaccines?

The COVID-19 vaccines currently authorized by the FDA are not manufactured using egg products or egg culture. See COVID-19 vaccines for more information.

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.

Is it normal to feel sick after getting the COVID-19 vaccine?

It is normal to feel sick after getting a COVID-19 vaccine.
You may have a sore arm.
Put a cool, wet cloth on your sore arm.

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.

Why do people who had COVID-19 have a strong reaction to the vaccine?

The next time you encounter the pathogen, these responses will kick in faster and stronger, because your immune system is already primed to recognise and respond to it. This is why people who have already recovered from COVID-19 may experience more of these mild reactions.

Why do I not have a reaction to COVID-19 vaccine?

It's likely related to variations in the immune system and its response, which may be influenced by things like age, genetics or underlying medical conditions.

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.

Should you get the Covid vaccine if you have an autoimmune disease?

The American College of Rheumatology COVID-19 Vaccine Clinical Guidance recommends that people with autoimmune and inflammatory rheumatic disease (which includes lupus) get the vaccine unless they have an allergy to an ingredient in the vaccine.

What are some exemptions from the COVID-19 vaccine?

Some people may be at risk for an adverse reaction because of an allergy to one of the vaccine components or a medical condition. This is referred to as a medical exemption. Some people may decline vaccination because of a sincerely held religious belief. This is referred to as a religious exemption.

Are mRNA vaccines preferred over Johnson and Johnson vaccine for COVID-19?

The mRNA vaccines are preferred over Johnson & Johnson's Janssen COVID-19 vaccine (a viral vector vaccine) in most circumstances. Although mRNA vaccines are preferred, the J&J/Janssen COVID-19 vaccine may be considered in some situations.