Categories: Vaccine

Common side effects of Pfizer and Moderna vaccines

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Discover the common side effects of Pfizer and Moderna vaccines.

The Spanish Agency for Medicines and Health Products (AEMPS) indicates the main reactions both in general and in the booster dose

The pandemic entered a new phase in Spain after the withdrawal of the mandatory quarantine for asymptomatic and mild cases. Health took the final steps toward the ‘flu’ of the virus with the limitation of diagnostic tests to the vulnerable population and a possible date for the removal of masks indoors. From the Government, it was proposed on April 12 while experts advise doing it after Easter.Common side effects of Pfizer and Moderna vaccinesCommon side effects of Pfizer and Moderna vaccines

The improvement in the epidemiological situation is due, according to experts, to the high levels of immunity achieved thanks to the vaccines. According to the Ministry of Health, in Spain, more than 93 doses have already been administered and 92.4% of the population has the complete guideline. In total there are 38,969,612 people with at least two doses of the coronavirus vaccine. As for booster vaccines, more than 24.4 million have been inoculated in total.

Side effects of covid vaccines

Some people have side effects after getting vaccinated, which are normal signs that your body is building protection, according to the Centers for Disease Risk and Control. Although these symptoms could affect you on a day-to-day basis, they disappear in a few days. Serious allergic reactions after receiving the covid vaccine are rare.

Reactions reported after receiving a booster dose are similar to those after the first and second doses: fever, headache, fatigue, and pain at the injection site.

The Spanish Agency for Medicines and Health Products (AEMPS), indicates the main effects of the vaccines approved in the European environment, both in general and in the booster dose.

As of March 6, 2022, 64,289,228 doses of Comirnaty have been administered in Spain, corresponding to 28,569,228 people. 52% of people who received this vaccine were women. Regarding the distribution by age groups, 61% were people between 18 and 65 years old, 25% were people over 65 years old, 8% were people between 12 and 17 years old, and 6% were children under 12 years old (source: Vaccination Registry, Ministry of Health).

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Most common side effects of Pfizer

•Pyrexia (32%)

•Headache (22%)

•Myalgia (16%)

•Pain in the vaccination area (13%)

•Discomfort (11%)

•Fatigue (8%)

•Lymphadonopathy (7%)

•Nausea (7%)

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•Chills (6%)

•Asthenia (6%)

Until March 6, 2022, a total of 23,385,714 doses of Spikevax were administered in Spain, corresponding to 5,330,182 people. 50% of people who received this vaccine were women.

Regarding the distribution by age groups, 80% corresponds to people between 18 and 65 years old, 12% to people over 65 years old, and 8% to people between 12 and 17 years old (source: Vaccination Registry, Ministry of Health).

Most Common Side Effects of Moderna (Spikevax)

•Pyrexia (44%)

•Headache (24%)

•Myalgia (19%)

•Pain in the vaccination area (15%)

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•Discomfort (13%)

•Chills (8%)

•Fatigue (7%)

•Nausea (7%)

•Lymphadenopathy (6%)

•Arthralgia (6%)

The latest side effects detected in vaccines against covid-19

The last side effects detected in the Janssen and Moderna covid vaccines have been detected in March 2022, according to the European Medicines Agency. The agency’s Medicines Safety Committee (PRAC) recommended adding small-vessel vasculitis with cutaneous manifestations as a potential side effect.

This reaction corresponds to the inflammation of the blood vessels of the skin that can give rise to a rash, pinpoint or flat red spots under the surface of the skin, and bruises, although its appearance due to the inoculation of these vaccines is « unknown frequency»

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They also point to new side effects from coronavirus vaccines developed by Pfizer and Moderna.

The new symptoms being examined are:

– Erythema multiforme: it is around skin lesions that can appear on the skin or the mucous membranes. It is an allergic hypersensitivity.

-Glomerulonephritis: is an inflammation of the filters of the kidneys. Thus, the organs responsible for removing excess fluid and waste from the bloodstream are damaged.

– Nephrotic syndrome: is a kidney disorder that causes the kidneys to eliminate much more protein when filtering waste.

According to the US Food and Drug Administration (FDA), the five most common side effects are pain at the injection site (83%), fatigue (63.7%), headache (48.4%), muscle and joint pain (39.1%) and chills (29.1%). In addition, fever (lasting no more than 1-2 days) and swollen glands (especially with the third dose) have also been detected.

Some of these new adverse reactions, although very rare, are serious; That is why vaccinated people must be aware of any of the indicative signs or symptoms and see a doctor as soon as possible.

Comirnaty (Pfizer BioNTech)

– Skin rash and itching.

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– Urticaria and inflammation of the skin (angioedema). And also localized swelling in the face in people who have previously received filler injections (for example hyaluronic acid injections).

– Inflammation of the heart (myocarditis) or the membrane that covers the heart (pericarditis). Very rare adverse reaction that, at most, appears in one person for every 10,000 vaccinated.

– Erythema multiforme due to an inflammatory reaction of the skin that manifests as target-shaped skin lesions (with a darker center). Consult the AEMPS bulletin.

– Paresthesia (strange sensations in the skin such as tingling or chills) and hypoesthesia (less sensitivity in the skin).

– Asthenia (tiredness).

– Lethargy.

– Lack of appetite.

– Excessive sweating (hyperhidrosis) at night.

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Spikevax (Moderna)

– Diarrhea.

– Delayed reactions at the injection site.

– Hypersensitivity reactions and anaphylaxis.

– Inflammation of the heart (myocarditis) or the membrane that covers the heart (pericarditis). Very rare adverse reaction that, at most, appears in one person for every 10,000 vaccinated.

– Erythema multiforme due to an inflammatory reaction of the skin that manifests as target-shaped skin lesions. Consult the AEMPS bulletin.

– Paresthesia. Rare adverse reaction that manifests itself in the form of abnormal sensations in the skin, such as tingling, without a previous stimulus. Consult the AEMPS bulletin.

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