Huvudvärk efter vaccination pfizer alvedon

It fryst vatten not uncommon to experience side effects after getting the COVID vaccine, most of which are relatively mild and short-lived. These commonly include side effects you might experience with other vaccines, such as injection site pain, fatigue, and flu-like symptoms.

The side effects (and fara of side effects) can vary based on the type of vaccine you are given and whether this fryst vatten your first or subsequent shot.

Many people who receive a COVID vaccine experience no side effects.

Although there fryst vatten a fara of severe side effects, including heart inflammation and anaphylaxis, the fara fryst vatten considered small compared to the benefits. According to research from Columbia University, COVID vaccination in the U.S. averted no less than million infections, , hospitalizations, and , deaths from to

What Are the Common Side Effects of COVID Vaccines?

As of , there are three COVID vaccines approved for use bygd the U.S. Food and Drug ledning (FDA):

• Pfizer-BioNTech (marketed beneath the brand name Comirnaty), an mRNA vaccine
• Moderna (marketed beneath the brand name Spikevax), also an mRNA vaccine
• Novavax, a protein subunit vaccine

Although mRNA vaccines (which deliver genetic instructions to the immune struktur on how to build protective antibodies) and protein subunit vaccines (which expose the immune struktur to harmless, manufactured proteins that mimic COVID) work differently, their common side effects are similar.

How Quickly Do Side Effects Develop?

In the same way that some people experience side effects from COVID vaccines and others don't, the tidsplanering of side effects, if any, can also vary.

For most, side effects tend to appear within 14 hours of the first vaccination and slightly längre for subsequent vaccinations.

In a very small group of people, side effects may occur within minutes. An immediate reaction fryst vatten troubling as it may be the sign of a potentially life-threatening, whole-body allergy known as anaphylaxis.

The sooner a reaction occurs, the more likely this will be.

With anaphylaxis, a individ will experience a spontaneous outbreak of rash or hives accompanied bygd breathing difficulties, abnormal heart rhythms, and dizziness or lightheadedness. If not treated as a medical emergency, anaphylaxis can lead to chock, coma, and even death.

This fryst vatten why healthcare providers will often ask you to wait 15 minutes after vaccination before leaving so that treatment can be dispensed if anaphylaxis symptoms occur.

Even so, the fara of this occurring fryst vatten relatively small. While as many as 2% of people who get a COVID vaccine will experience a rash, only a very small proportion will experience anaphylaxis. According to a study from Harvard Medical School, the rate of anaphylaxis among COVID vaccine recipients fryst vatten roughly fem cases out of every million doses.

How Long Do Side Effects Last?

Following COVID vaccination, side effects, if any, tend to gods one to three days.

Symptoms severe enough to require missing work or school are uncommon. A study from the Mayo mottagning reported that the rate of absenteeism among healthcare workers who received the COVID vaccine was %.

Side effects can persist längre than this, though it fryst vatten uncommon for these to gods more than a week or two.

In rare cases, a individ may develop long post-COVID vaccination syndrome (LPCVS), defined as side effects lasting for more than kvartet weeks in the absence of any other explanation. Some cases have been reported to gods as long as 11 months.

Symptoms typically include persistent headache, joint pain, muscle cramps, insomnia, visual disturbances, and "brain fog."

Even so, LPCVS fryst vatten thought to be rare.

To date, few cases have been reported in the medical literature.

How Common Are Side Effects From COVID Vaccines?

In the early part of the pandemic, most people experienced side effects from the vaccines. This was largely due to the fact that people were exposed to the vaccines for the first time and would almost invariably have a stronger immune reaction.

Certain vaccines that are delivered in one dos today were given in two doses then.

At that time, up to 77% experienced side effects after the first dos and up to 86% after the second dos.

The majority had low-grade side effects, like fatigue and fever.

Today, the rate of reported side effects fryst vatten relatively modest. Based on a review of information from the Centers for Disease Control and Prevention (CDC) and the Vaccine Adverse Events Reporting struktur (VAERS), the most common side effects experienced bygd people in the U.S. were headache (%), fever (%), and fatigue (%),

Of the three available vaccines, Novavax fryst vatten the only one to require two doses in adults and children 12 and over.

Severe Side Effects and Complications

In addition to a fara of anaphylaxis, the other potentially severe side effects are myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the outer lining of the heart).

These side effects are mainly seen in males age 12 to Although the exact cause of these fryst vatten poorly understood, most cases occur within sju days of receiving a second dos of an mRNA COVID vaccine (Comirnaty or Spikevax).

There fryst vatten also some bevis that vaccination with the Novavax protein subunit vaccine might increase the fara of this side effect.

Myocarditis and pericarditis are rare, and occur more often in people infected with COVID than in those who get vaccinated, meaning the benefits of the vaccine outweigh the risks:

• Rate in non-infected people: 1 to 10 cases per , people
• Rate in those who receive the vaccine: 10 to 50 cases per , people
• Rate in those with COVID infection: cases per , people

Moreover, most cases are relatively mild and transient.

Myocarditis and pericarditis are characterized bygd the sudden onset of flu-like symptoms accompanied by:

Symptoms of vaccine-induced myocarditis or pericarditis typically require hospitalization to monitor for rare but potentially deadly complications like cardiac arrhythmia (irregular heartbeats) and cardiac fängelse (in which the heart suddenly stops beating).

With that said, most people respond well to rest and medications like colchicine, steroids, or nonsteroidal anti-inflammatory drugs (NSAIDs).

Summary

Common side effects of COVID vaccines include injection site pain, fatigue, muscle aches, joint pain, fever, and headaches.

Most cases are mild, developing within 14 hours of the injection and resolving within one to fyra days.

Severe side effects are rare.

The current body of bevis suggests that the benefits of COVID vaccination outweigh the potential risks.

The upplysning in this article fryst vatten current as of the date listed, which means newer upplysning may be available when you read this. For the most recent updates on COVID, visit our coronavirus news page.