COVID-19 Pfizer Vaccine

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How does the Pfizer vaccine work?

Pfizer COVID vaccine’s mRNA carries genetic instructions to human cells on how to create a spike protein. After the spikes are made, the enzymes in the cells break down the mRNA, naturally removing any trace of it in the body.
The spike protein goes to the surface of the cells, calling the attention of the immune system. An immune response is generated and the immune system sends out antibodies to get rid of the foreign proteins.
When the Coronavirus spikes show up, the immune system would already be equipped and ready to fight it off. The vaccine will begin to provide protection within about 10 to 14 days of the first dose.

How effective is the Pfizer vaccine?

The Pfizer BioNTech COVID vaccine is 95% effective at preventing COVID-19. This was based on results generated from participants vaccinated with the full 2-dose series, having no previous experience of getting infected with Coronavirus.
The vaccine shows high effectiveness regardless of a person’s age, sex, race, or ethnicity. It is also quite effective for people who have underlying medical issues. Adverse reactions occurred more on those who got the saline placebo than those who got vaccinated with the Pfizer vaccine.
To learn more about COVID-19 vaccines, you can check the Center for Disease Control and Prevention (CDC). To get tested, contact us to schedule an appointment.
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Is the Pfizer COVID-19 vaccine safe?

The Pfizer COVID-19 vaccine is safe. Almost all the ingredients of COVID vaccines are found in food items—fats, salts, and sugars. The piece of messenger RNA (mRNA) it contains is also harmless.

Who should not take the Pfizer-BioNTech COVID-19 vaccine?

People should not take the Pfizer-BioNTech COVID-19 vaccine if they have a severe allergy to any of the vaccine’s ingredients, such as polyethylene glycol. If an individual suffers from a severe allergic reaction after the first dose, it is not recommended to get a second dose.

Learn more about the Pfizer vaccine’s ingredients here.

What is the Pfizer BioNTech COVID-19 vaccine – BNT162b2?

The first-ever COVID vaccine to get an EUA from the FDA, this injectable has a 95% efficacy, providing strong protection against the virus after two shots. Based on clinical trials, there had been no significant adverse effects on the volunteers who were able to receive the vaccine in the United States, Brazil, and Argentina. The vaccine also works on most individuals, regardless of race, weight, and age. Despite this, the FDA only approves administration to people 16 years and older.

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

The most common side effects of the Pfizer-BioNTech COVID-19 vaccine that were reported were pain and discomfort at the injection site, fatigue, headache, muscle pain, fever, chills, and joint pain. Most of the side effects resolve a day or two later.

Are long-term side effects possible with the COVID-19 vaccine?

Long-term side effects are possible with the COVID-19 vaccine but extremely unusual. The benefits of the vaccine far outweigh the risks.

Why are Pfizer vaccine side effects worse after the second shot?

Pfizer vaccine side effects are worse after the second shot because the immune system already recognizes the spike protein from the first dose, thus, it creates a stronger response to defend your body.

Are side effects of the COVID-19 booster shot worse?

The side effects of the COVID-19 booster shot are not worse than the first two doses. They may be similar to what you have experienced or possibly even milder.

When should you take the COVID-19 booster shot?

You should take the COVID-19 booster shot 5 months after the second Pfizer-BioNTech vaccine dose.

Should I get a second COVID-19 booster shot or a fourth COVID shot?

A second COVID-19 booster shot or a fourth COVID shot is not necessary because the booster shot (third COVID shot) is still quite effective against the existing COVID virus strains. The only people authorized to get a second booster shot or a fourth vaccine shot are those with weakened immune systems, those who are undergoing medical procedures and medication, and those with advanced or untreated HIV.

What is the difference between a booster shot and a regular COVID-19 shot?

The difference between a booster shot and a regular COVID-19 shot is that the former is given to fully vaccinated people to help boost or increase the immunity they have as antibodies may possibly decline over time. The latter, on the other hand, is the initial dose to help the immune system learn to protect the body against the virus’s spike protein.

Can you mix COVID-19 vaccines?

You can’t mix COVID-19 vaccines for the first two doses that you take primarily. However, for a booster dose, individuals aged 18 years and up may choose which vaccine they want to get. CDC recommends either Pfizer or Moderna for a booster shot.

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