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Updated on July 4, 2022 7:56 am
All countries
Updated on July 4, 2022 7:56 am
All countries
Updated on July 4, 2022 7:56 am

Global Statistics

All countries
Updated on July 4, 2022 7:56 am
All countries
Updated on July 4, 2022 7:56 am
All countries
Updated on July 4, 2022 7:56 am
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Why Does The Covid Vaccine Cause Reactions

Study Observes Inflammation Of The Heart Muscle 4x More Frequently After Coronavirus Infection Than After Covid

Mayo Clinic Insights: Why do the COVID-19 vaccines cause side effects

The vaccines authorised for use in Switzerland are very effective against severe disease caused by COVID-19. But like any medication, vaccinations can also have side effects. However, they are mostly mild and short-lived.

In very rare cases, inflammation of the heart muscle has been observed within 14 days of receiving an mRNA vaccination, and this may potentially be associated with the vaccination. These cases of myocarditis have mostly been mild and easily treatable. Typical symptoms of heart muscle inflammation are chest pains, shortness of breath and palpitations. If you experience any of these symptoms in the days after the vaccination, contact your doctor immediately.

In a recently-published study from Israel involving the Pfizer/BioNTech vaccine, researchers found that vaccinated people are much less likely to suffer from myocarditis than people infected with coronavirus. Across all age groups, there were 2.7 cases of myocarditis for 100,000 vaccinations, and 11 cases of myocarditis for 100,000 infections. Other health problems were also less likely after vaccination than after contracting COVID-19. You can read the full report here.

The risks associated with a coronavirus infection are therefore much higher than those of the recommended COVID-19 vaccination. Across all age groups, the mRNA vaccines provide robust protection â both against severe disease and long COVID.

Potential Side Effects Per Vaccine

Recently, there have been new concerns about serious side effects of COVID-19 vaccines. These effects may be coincidental, and there is currently not enough conclusive evidence to link these effects to specific vaccines. However, regulatory agencies are taking precautionary measures to investigate these safety concerns.

Fever After The Coronavirus Vaccine

Its quite common to develop a fever after a vaccination. This normally happens within 48 hours of the vaccination and usually goes away within 48 hours.

You do not need to self-isolate or book a test unless you have other coronavirus symptoms or:

  • you have been told by NHS Test and Protect, or your occupational health team, that you are a close contact of someone who has tested positive for coronavirus
  • you live with someone who has recently tested positive for coronavirus
  • you live with someone who has symptoms of coronavirus

If the fever starts more than 48 hours after the vaccination or lasts longer than 48 hours, you should self-isolate and book a test.

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I Didnt Have A Reaction To The Vaccine Does That Mean Its Not Working

It’s totally a reasonable concern, Pullen says. But we have a lot of data now showing that yes, it is effective for people who don’t feel those symptoms.

In the Pfizer vaccine trials, about one out in four reported no side effects. In trials of the Moderna vaccine, side effects were somewhat more common, with 82 percent of individuals experiencing them after the second dose. Despite the range of immune reactions, the Moderna and Pfizer vaccines have shown to be 90 percent effective at preventing Covid-19 in a real-world setting.

If you dont have any reactions, Pullen says it means your immune system is tuned just right to respond to the vaccine.

What Is Known About The Johnson & Johnson Vaccine And Allergic Reactions

Coronavirus (Covid

In Johnson & Johnsons press release announcing FDA approval of its COVID-19 vaccine, it states:

There is a remote chance the Janssen 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 Janssen 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.

Johnson & Johnson says you should not get its COVID-19 vaccine if you have had a severe allergic reaction to any ingredient in its vaccine.

Prior to vaccination, be sure to tell the vaccine provider if you have any allergies. You should also tell the vaccine provider if youre immunocompromised or youre on a medicine that affects your immune system.

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Measles Can Cause Eye Problems

Around the world, measles causes as many as 60,000 cases of blindness each year, according to the American Academy of Ophthalmology . Other potential vision issues associated with measles include:

  • Red and watery eyes triggered by pink eye

  • Keratitis and scarring of the cornea

  • Optic neuritis

  • Childhood blindness

The measles vaccine is the best option for preventing the disease and, therefore, preventing measles-related vision problems.

SEE RELATED:5 ways measles can affect eyesight

Pfizer Vaccine Side Effects

People who get the Pfizer COVID-19 vaccine will likely experience soreness, redness and swelling at the injection site, and potentially chills and fatigue. The Food and Drug Administration lists a few additional side effects for the Pfizer-BioNTech vaccine specifically, including muscle pain, joint pain, nausea and swollen lymph nodes.

The FDA notes that most people experienced these side effects after the second dose of the vaccine.

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What Can I Do To Alleviate Them

To reduce pain in the area of the injection, you can apply a clean, cold, wet washcloth over the area and lightly exercise your arm. This may also help with body aches.To fight other side effects you should drink plenty of fluids, use light clothes and you could take a shower with warm water to help regulate your temperature.If you have very strong muscle aches or headaches, you can contact a pharmacist or take ibuprofen, Tylenol, or some aspirin.

A Vaccine That Is Developed And Tested So Quickly Cannot Be Safe

Understanding COVID-19 vaccine side effects, why second dose could feel worse

The global impact of the pandemic created an extraordinary environment for bringing vaccines to market so quickly. Various stakeholders came together to provide the required financial and logistical resources. The various phases of the clinical studies were completed in parallel and not one after the other as is usually the case. This saved a lot of time. As the population recognised the risk presented by the virus, there were many volunteers prepared to come forward and participate in the clinical trials. Many wanted to help ensure a safe and effective vaccine became available. The trials were very large, included many participants and thus also generated vast amounts of data for the monitoring of any potential side effects. More information on the COVID-19 vaccine development can be found in this graphic.

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Pfizer And Moderna Side Effects After The Second Covid

The Pfizer and Moderna COVID-19 vaccines are the same type of vaccine called messenger RNA vaccines. Because of this, you may experience similar side effects with either brand, but they may be more noticeable after the second shot. Common side effects can include:

  • Arm pain, swelling, or redness

  • Headache

  • Chills

  • Nausea

More serious side effects, like a severe allergic reaction and myocarditis or pericarditis , are very rare.

When Should I Expect To Feel Side Effects After My Second Shot

Side effects may be different for different people including the time it may take for people to experience them. But more people had side effects on the day after the second Pfizer shot, and within a day or two of the Moderna shot.

Although less common, its possible that some people may not experience any side effects at all.

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Videos Showing Magnetic Objects Sticking To The Arms Of Recipients Are Being Shared Widely On Social Media Raising Doubts About The Safety Of Covid


Several social media posts claiming that COVID-19 vaccines can make people magnetic are doing rounds on the internet. Videos showing magnetic objects sticking to the arms of vaccine recipients are also being shared widely on social media, raising doubts about the safety of the vaccines.

Recently, a 71-year-old citizen from Nashik claimed that steel objects were sticking to his hands after taking the second dose of the Covishield vaccine. In a video that has now gone viral, Arvind Sonar can be seen sticking coins and steel to his arm after receiving vaccine jabs.

The senior citizen had taken a second dose of the vaccine at a private hospital two days ago. After learning about magnetism from social media, Sonar tried the trick on himself. He noticed that iron and steel object, mostly coins and spoons were sticking to his body.

What Causes The Immune Reactions

The Rare COVID Vaccine Side Effect Doctors Want You to ...

In the case of the authorized COVID-19 vaccinesPfizer, Moderna, and Johnson & Johnsonall contain a genetic blueprint for manufacturing spike proteins, which sit on the surface of the coronavirus and enable it to infect human cells. When human cells receive these instructions, they churn out copies of spike protein. But since the cells make only a piece of the virus, and not the whole pathogen itself, we dont get sick. But while the foreign spike cant cause disease, it can activate a two-step immune responseexactly as it is supposed to do.

The immediate physical reaction to the COVID-19 vaccine is caused by the innate immune system. When a person receives a shot, a flurry of white blood cells called macrophages and neutrophils arrive at the injection site and begin producing chemicals called cytokines. This response triggers a wide range of symptoms, from inflammation and swelling at the injection site to fever, fatigue, and chills.

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Early Recognition Of Anaphylaxis

Because anaphylaxis requires immediate treatment, diagnosis is primarily made based on recognition of clinical signs and symptoms. Signs and symptoms in adults and children include:

  • Respiratory: sensation of throat closing or tightness, stridor , hoarseness, respiratory distress , coughing, trouble swallowing/drooling, nasal congestion, rhinorrhea, sneezing
  • Gastrointestinal: nausea, vomiting, diarrhea, abdominal pain, or cramps
  • Cardiovascular: dizziness fainting tachycardia hypotension pulse difficult to find or weak cyanosis pallor flushing
  • Skin/mucosal: generalized hives widespread redness itching conjunctivitis or swelling of eyes, lips, tongue, mouth, face, or extremities
  • Neurologic: agitation convulsions acute change in mental status sense of impending doom
  • Other: sudden increase in secretions urinary incontinence

Anaphylaxis should be considered when signs or symptoms are generalized or are serious or life-threatening in nature, even if they involve a single body system .

If anaphylaxis is suspected, administer epinephrine as soon as possible, contact emergency medical services, and transfer patients to a higher level of medical care. In addition, instruct patients to seek immediate medical care if they develop signs or symptoms of an allergic reaction after their observation period ends and they have left the vaccination location.

Period Problems And Unexpected Vaginal Bleeding

Some women have reported temporary changes in their periods after receiving the coronavirus vaccine. Some women have reported heavier bleeding than usual, delayed periods or unexpected vaginal bleeding. The MHRA and other experts are closely monitoring and evaluating these reports. Longer term follow-up is ongoing in the UK and elsewhere to better understand this reaction.

Current evidence suggests there is no link between period problems or unexpected vaginal bleeding and coronavirus vaccines. The number of reports is relatively low given the number of women who have taken the vaccine and how common period problems are generally. The menstrual changes reported usually do not last long. Whilst uncomfortable or distressing, period problems are extremely common and stressful life events can disrupt with your periods. Changes to the menstrual cycle have also been reported following infection with coronavirus and in women affected by long-COVID.

If you have changes to your periods that are unusual for you, persist over time, or you have any new vaginal bleeding after the menopause, following coronavirus vaccination, please speak to your GP.

As with all vaccines, you can report suspected side effects through the Yellow Card website.

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Older Adults Including Long

There are no contraindications to the administration of epinephrine for the treatment of anaphylaxis. Although adverse cardiac events, such as myocardial infarction or acute coronary syndrome, have been reported in some patients who received epinephrine for treatment of anaphylaxis , epinephrine is the first-line treatment for anaphylaxis. It is important that locations providing vaccination to older adults, including long-term care facility residents, have staff members available who are able to recognize the signs and symptoms of anaphylaxis. This will help not only to ensure appropriate and prompt treatment for patients with anaphylaxis, but also to avoid unnecessary epinephrine administration to patients who do not have anaphylaxis.

I’m Pregnant And A Doctor: This Is Why I Got The Covid

Why Pfizer And Moderna Can’t Be Sued For Covid Vaccine Side Effects

The study’s lead researcher, Dr. Alison Edelman, professor of obstetrics and gynecology at Oregon Health and Science University School of Medicines, said the findings are important because they help affirm women’s anecdotal experiences and let women know what to expect after getting vaccinated.

“On a personal level, any noticeable change to a persons cycle whether it be related to vaccination or other environmental stressors can indeed feel significant,” Edelman told “Good Morning America.” “While reassuring, the study findings may also be validating to individuals who experienced menstrual disruption following vaccination.”

“As a clinician, I can help provide them with information about what to expect with vaccination, which might include a slight variation in their cycle length and have them prepared for this possibility so that they do not need to worry,” she said.

Edelman also reiterated that the study’s findings do not mean the COVID-19 vaccine impacts current or future fertility.

“If an individual is avoiding vaccination due to the potential of menstrual disruption, these study results should be reassuring to them,” she said. “In alignment with other previously published reports, there is no evidence to suggest that vaccines cause long-term impact to menstruation, fertility or pregnancy.

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What Are The Side Effects Of The Pfizer/biontech Vaccine

According to the UK government, these are the most common side effects of the Pfizer vaccine:

  • pain at the site of injection

  • fatigue

Less common side effects include:

  • swelling and redness at site of injection

  • nausea

Uncommon side effects include:

  • enlarged lymph nodes

Very rare side effects include:

  • temporary one sided facial drooping

How Do The Reactions To The Different Covid

Side effects across the Moderna, Pfizer and Johnson & Johnson vaccines are very similar. The two types of side effects you might experience are local and systemic. Local side effectsmeaning in the arm where you got the shotinclude pain, redness or swelling. Systemic side effectsthose that happen throughout the rest of your bodymay include tiredness, headache, muscle pain, chills, fever and nausea.

On April 13, federal health officials in the use of the Johnson & Johnson vaccine after reports that six women developed a type of blood clot after vaccination. One of the women died, and another is in critical condition. To date, close to seven million individuals in the U.S. have gotten this vaccine. The Centers for Disease Control and Prevention says the blood clots appear to be extremely rare. A CDC advisory panel postponed a decision on the use of Johnson & Johnsons vaccine until it investigates the cases.

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Spike Proteins Elicit Cell Signaling

A peer-reviewed study showed that the spike protein and the ACE2 receptor interaction could activate the MEK, which activates the extracellular signal-regulated kinase . The result is a thickening of the blood vessel wall, and the thicker arteries become more rigid than rubbery, causing higher pressures.

Side Effects Of The Coronavirus Vaccine


Side effects are common and normal after many vaccinations, including the flu, shingles, etc., there is no reason to fear them, and the more informed you are, the more comfortable and calmed you will be when getting vaccinated. Side effects of the coronavirus vaccine appear due to the immune response, but they are not serious.

Side effects are the result of the inflammation induced by vaccines, and they are a sign of the bodys immune response to them. Everyones reaction to the vaccine is different, and there are some types of vaccines that cause a slightly stronger reaction than others, therefore, if someone from your family or friends experienced the side effects a certain way, it is likely that yours will be different.

It is important to clarify that the vaccine does not give you the virus, and its side effects are not a form of COVID-19, there is no need to worry about that.

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How Long Do Vaccine Side Effects Last

Typically, vaccine side effects only last a couple of days.

Vaccine side effects typically don’t last longer than a couple of days, Mathew says. Some people may experience side effects for several days. Side effects that were related directly to the injection site, like bruising and redness, should subside relatively quickly, while whole-body side effects like fever and headache may last longer.

If you’re still having side effects a week or more after you get a vaccine — COVID-19 or otherwise — call your doctor or go to urgent care. If you feel the effects are life-threatening , seek emergency medical care right away.

The Bottom Line: Get Vaccinated

Again, Dr. Dean stresses that theres no reason to be alarmed about getting swollen lymph nodes from the COVID-19 vaccine. This type of reactive change that were seeing with the COVID-19 vaccine is exactly what we should see, she says. Its your body mounting the immune response as its supposed.

While those enlarged lymph nodes may be worrisome, she adds that healthcare providers are aware and monitoring them in patients. Were keeping an eye on this side effect and when it comes to your mammogram screening, were ready to explore any abnormalities in that context.

Finally, she reiterates how important it is to maintain your preventative care appointments despite these side effects. Its extremely important COVID-19 vaccinations continue. And its also important to know that well never turn any patient away from a mammogram screening for getting their vaccination. Were armed with as much information as possible and well work with every patient to make sure they get the care they need.

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