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Updated on June 23, 2022 9:27 pm
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Updated on June 23, 2022 9:27 pm
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Updated on June 23, 2022 9:27 pm

Global Statistics

All countries
Updated on June 23, 2022 9:27 pm
All countries
Updated on June 23, 2022 9:27 pm
All countries
Updated on June 23, 2022 9:27 pm
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What Are The Side Effects Of The Covid Vaccine

While Not Everyone Experiences Side

Possible Side Effects Of Coronavirus Vaccine Described

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DNA webdesk

With widespread COVID-19 vaccinations, there have been several side-effects, common and rare, observed with the different vaccines. New side-effects of the Oxford-AstraZeneca vaccine have been surfacing, increasing concerns among experts.

There have been reports of blood clot formation and rare neurological complications after the vaccine. There are several other more common side-effects of the Oxford AstraZeneca vaccine. However, the benefits of the vaccine outweigh the risks.

A number of cases are being reported where some people get fever and flu-like symptoms. It has been seen with post-vaccination cases that individuals are affected differently.

Chickenpox And Shingles Vaccines

One study found rare instances of corneal inflammation in children and adults after they received the zoster virus vaccine for both conditions.;

Common side effects from the chickenpox vaccine include:

  • Soreness and a mild rash at the injection spot

  • Temporary joint pain and stiffness

  • Fever

For the shingles vaccine, common side effects are:

  • Soreness, redness and swelling at the injection site

  • Tiredness

  • Stomach pain and nausea

Chills That Won’t Stop

Chills are one of the few symptoms reported by the Centers for Disease Control and Prevention. While they are typically mild, some people are experiencing fever and chills so severe, they end up in the hospital. 67-year-old Cathy Husler from Mifflintown, PA explained to ABC 27 that two days after getting her first dose of the vaccine, she was admitted to the ER. “When I got to the ER, my temperature was 103.8, and I just kept having chills,” she said. Luckily, both these symptoms are temporary and shouldn’t stop you from getting your second round. “Get the second shot even if you have side effects after the first shot, unless a vaccination provider or your doctor tells you not to get a second shot,” urges the CDC.;

Read Also: Can You Lose Your Voice With Covid

Allergic Reactions And Anaphylaxis

Rarely, a person experiences an allergic reaction to one or more of the ingredients in a vaccine. They might develop hives or another type of skin rash, swelling, and respiratory symptoms.

A severe allergic reaction can lead to anaphylaxis, and it involves low blood pressure, nausea, and difficulty breathing, among other symptoms.

Anaphylaxis is an extremely rare side effect of vaccination. According to the CDC, around 25 people per million , or fewer than 0.001% of people vaccinated in the U.S. have experienced anaphylaxis afterward.

Allergic reactions to mRNA vaccines have been of particular concern, as they contain a chemical, called polyethylene glycol , that has never been used in an approved vaccine before. PEG is in many drugs that have occasionally triggered anaphylaxis. In these vaccines, it coats the mRNA molecule and supports penetration into cells.

There are similar concerns about the , which contains polysorbate 80, a chemical that is structurally related to PEG.

A study of data about allergic reactions to mRNA COVID-19 vaccines noted that most people who experienced anaphylaxis afterward had a history of allergies and this particular severe reaction.

The CDC also recommends that anyone who has had an allergic reaction to one dose of a vaccine not receive a second dose of the same type of vaccine.

Vaccine Development: Vaccines Approved For Use And In Clinical Trials


The speed at which the first COVID-19 vaccines were developed was extraordinary. We have previously looked into the history of vaccine development. The measles vaccine was found relatively rapidly: it took only 10 years from the discovery of the pathogen to the development of the first vaccine. But for typhoid it took more than a century, and for some diseases for which weve known the pathogens for more than a century we still havent found an effective vaccine.

The development of a vaccine against COVID-19 has been much faster than the development of any other vaccine. Within less than a year several successful vaccines have already been announced and were approved for use in some countries.;

The hope is that even more manufacturers develop vaccines for COVID-19. This will be important because eventually a very large share of the world population needs to receive a COVID-19 vaccine.

We are on the way to several vaccines against COVID-19 vaccine trackers monitor the progress:

Several institutions maintain websites on which they list COVID-19 candidate vaccines that are currently being developed:

Oxford/AstraZeneca, Sinopharm/Beijing, Sinovac, Sputnik V

Read Also: How To Get Smell And Taste Back After Covid

Allergic Reactions Are Extremely Rare

Experiencing a severe allergic reaction to the vaccine is extremely rare. Vaccine providers typically require vaccine recipients to wait 15-30 minutes after receiving their vaccine to watch for an allergic reaction. Everyone who receives a vaccine through CU Boulder will complete a form that asks about any previous allergic reactions to other vaccines. If someone were to experience a severe allergic reaction, our health care staff have medications available for immediate treatment.;

Why Theyre Suppressing Vaccine Side Effects

A question:

Why do the health authorities refuse to acknowledge the possibility of severe vaccination side effects? Here is the likely answer:

The Noble Lie. Details to follow.

As we maintained yesterday in grim detail the COVID-19 vaccines are likely not so safe as health authorities claim.

Jabbings have likely accounted for thousands of deaths perhaps tens of thousands and at least hundreds of thousands of other adverse events.

The numbers may trifle against the millions and millions of incident-free vaccinations. Most may be unaffected entirely. We do not claim otherwise.

Yet the casualty lists are far from negligible.

These vaccines have likely claimed more victims than all other vaccines over the past 30 years combined.

Yet the authorities continue to stroke our ears with pretty jingles. They coo, they croon, that these vaccines are very nearly 100% safe.

Again, why?

It is the Noble Lie, argues Dr. Robert Malone.

Also Check: How Much Does A Covid Vaccine Cost

The Debate Over Covid

Better answers could arrive soon. Israel and some European countries are ahead of the United States in their version of booster plans. A study looking at the early days of Israels booster campaign, giving another dose of the Pfizer-BioNTech vaccine to people 60 or older, did not appear to turn up any new safety concerns. And statements from the companies about their small studies of boosters have indicated similar safety features to the earlier doses.

Since most issues tied to vaccination occur shortly after the shots are delivered, if there was a dramatic increase in risk in terms of the safety profile, wed start to see that soon, Slifka said.

Below, STAT outlines some of the side effects tied to the different vaccines and what experts are considering at this point.

Why Do Some People Get Side Effects After Covid

A closer look at reported COVID-19 vaccine side effects

Why do some people get side effects after COVID-19 vaccines?

Temporary side effects including headache, fatigue and fever are signs the immune system is revving up — a normal response to vaccines. And theyre common.

The day after getting these vaccines, I wouldnt plan anything that was strenuous physical activity, said Dr. Peter Marks, the U.S. Food and Drug Administrations vaccine chief, who experienced fatigue after his first dose.

Heres whats happening: The immune system has two main arms, and the first kicks in as soon as the body detects a foreign intruder. White blood cells swarm to the site, prompting inflammation thats responsible for chills, soreness, fatigue and other side effects.

This rapid-response step of your immune system tends to wane with age, one reason younger people report side effects more often than older adults. Also, some vaccines simply elicit more reactions than others.

That said, everyone reacts differently. If you didnt feel anything a day or two after either dose, that doesnt mean the vaccine isnt working.

Behind the scenes, the shots also set in motion the second part of your immune system, which will provide the real protection from the virus by producing antibodies.

People also occasionally have serious allergic reactions. Thats why youre asked to stick around for about 15 minutes after getting any type of COVID-19 vaccine to ensure any reaction can be promptly treated.

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Possible Side Effects After Getting A Covid

COVID-19 vaccination will help protect you from getting COVID-19. You may have some side effects, which are normal signs that your body is building protection. These side effects may affect your ability to do daily activities, but they should go away in a few days. Some people have no side effects.

Serious side effects that could cause a long-term health problem are extremely unlikely following any vaccination, including COVID-19 vaccination. Vaccine monitoring has historically shown that side effects generally happen within six weeks of receiving a vaccine dose. For this reason, the FDA required each of the authorized COVID-19 vaccines to be studied for at least two months after the final dose.

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

Recommended Reading: Is Covid 19 Getting Better

What This Means For You

Some employers are offering paid time off for COVID-19 vaccine appointments and subsequent recovery days. If you haven’t been vaccinated yet and you’re concerned about losing a day’s worth of pay, it’s best to check with your employer. To look for available vaccine appointments near you, visit

To 48 Hours After Vaccination


Once these body-wide side effects set in, they can last for 12 hours or more. Experts say these side effects should all stop within 24 to 48 hours after your shot, though you may still have some slight fatigue or arm soreness after that.

Mullane says its best to avoid important events or take on key tasks the day after your vaccination if youre concerned about the side effects. That’s because your vaccine appointment and the window for peak symptoms aren’t likely to happen at the same time. Most side effects come later.

Its OK to take an anti-inflammatory medication like Tylenol or ibuprofen to relieve any symptoms. But Mullane says not to take it before the shot, as it can interfere with your immune response.;

Also Check: Do You Need Covid Vaccine To Travel

It Takes Time For The Vaccination To Provide Immunity

Clinical studies indicate that the vaccination may provide some protection around 12 days after the first dose is given, but you must get both doses in order to achieve full protection. When both doses are administered, the vaccine is more than 90% effective at preventing COVID-19 infection.

On May 13, the CDC stated that people who are fully vaccinated no longer need to wear masks or maintain social distancing in most situations. However, the CDC also noted that people with weakened immune conditions, such as cancer, should talk to their healthcare provider about the need for protective measures even after vaccination. Therefore, to protect our patients from COVID-19, MSK requires that all staff, patients, and visitors must continue to wear masks while at MSK. This requirement includes people who are fully vaccinated.

Why Its Normal To Have Mild Side Effects From Vaccines

Vaccines are designed to give you immunity without the dangers of getting the disease. Its common to experience some mild-to-moderate side effects when receiving vaccinations. This is because your immune system is instructing your body to react in certain ways: it increases blood flow so more immune cells can circulate, and it raises your body temperature in order to kill the virus.


Mild-to-moderate side effects, like a low-grade fever or muscle aches, are normal and not a cause for alarm: they are signs that the bodys immune system is responding to the vaccine, specifically the antigen , and is gearing up to fight the virus. These side effects usually go away on their own after a few days.

Common and mild or moderate side effects are a good thing: they show us that the vaccine is working. Experiencing no side effects doesnt mean the vaccine is ineffective. It means everybody responds differently.;

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How Well The Vaccine Works

  • Based on;evidence from clinical trials in people 16 years and older, the Pfizer-BioNTech vaccine was 95% effective at preventing laboratory-confirmed infection with the virus that causes COVID-19 in people who received two doses and had no evidence of being previously infected.
  • In clinical trials, the Pfizer-BioNTech vaccine was also highly effective at preventing laboratory-confirmed COVID-19 infection in adolescents 1215 years old, and the immune response in people 1215 years old was at least as strong as the immune response in people 1625 years old.
  • The vaccine was also highly effective in clinical trials at preventing COVID-19 among people of diverse age, sex, race, and ethnicity categories and among people with underlying medical conditions.
  • Evidence shows mRNA COVID-19 vaccines offer similar protection in real-world conditions as they have in clinical trial settingsreducing the risk of COVID-19, including severe illness by 90% or more, among people who are fully vaccinated.
  • CDC will continue to provide updates as we learn more.

When Can Children Get The Vaccine

Moderna COVID-19 vaccine trial volunteer explains his side effects on CNN

The Pfizer vaccine received authorization in May for;adolescents age 12 to 15 after clinical trial results showed it is safe and effective in that age group. That has allowed many students to get vaccinated against COVID-19 before the start of the school year.;

But younger kids will have to wait a while longer.;Vaccine makers;have begun;including younger children in clinical trials, with results expected in the coming months. Many experts expect vaccines to be available for younger age groups;by early this winter.

The;Moderna;and Johnson & Johnson vaccines are currently authorized only for ages 18 and up.

Recommended Reading: How Long Does The Covid Shot Last

What Can I Safely Do After I Am Fully Vaccinated

Once people are fully vaccinated meaning two weeks have passed after their final dose the CDC is assuring Americans that they can can resume most activities and gather with other vaccinated people, indoors or outdoors.

Vaccinated people no longer need to self-quarantine after travel. The CDC has a more detailed list of do’s and don’ts here.;

Side Effects Or Lack Of Side Effects After Being Vaccinated For Covid

For some people, the second dose in a COVID-19 vaccination series is causing a stronger reaction and more side effects than the initial dose. That was also true during the clinical trials.

This may be a concern not only for those experiencing side effects, but also those who are worried a COVID-19 vaccine isn’t working because they didn’t have a reaction.

Dr. Gregory Poland, an infectious diseases expert and head of;Mayo Clinic’s Vaccine Research Group, says everybody is different. He says the first dose teaches your body to recognize the virus and the second vaccine is kicking the body’s system into gear.

“It’s as if you’ve started a cold car, with the first dose,” says Dr. Poland. “The car is idling. Then you give it that second dose, and because the car has warmed up, you can put the pedal to the metal and go.” But everybody is going to respond differently.

“Each of our bodies releases different amounts of chemicals, or immune signals. One body might release more than what’s needed, causing more of a response, and someone else’s body might release exactly the right amount. It’s what we’ve called the ‘Goldilocks phenomenon.’ Not too much, not too little, but just right.” Dr. Greg Poland

Dr. Melanie Swift, co-chair of Mayo Clinic’s COVID-19 Vaccine Allocation and Distribution Work Group, says all vaccines could cause some degree of reaction. The same is true with the COVID-19 vaccines.

Read Also: Why Is Covid So Contagious

Rare Reactions To The Johnson & Johnson Vaccine

Very rarely, a blood-clotting condition called TTS can occur in the weeks following a Johnson & Johnson vaccination. TTS is extremely unlikely and occurs in about 3 in every 1 million adults.

Blurry vision can be a sign of TTS, along with several other symptoms.

The rare nerve condition Guillain-Barre syndrome has also been seen in about 8 in every 1 million adults vaccinated with the J&J vaccine.

Guillain-Barre syndrome can cause eye-related symptoms such as double vision and problems moving the eyes, in addition to other neurological symptoms.

If you notice any of the symptoms of TTS or Guillain-Barre in the days or weeks after a J&J vaccine, get medical help right away.

Despite these uncommon reactions, the CDC has stressed that compared to a COVID-19 infection the benefits of the J&J vaccine far outweigh any risks.

How The Risk Of Side Effects Could Change With Covid


Additional doses of Covid-19 vaccines are likely rolling out in the United States later this year. It raises the question: What will the side effects from a booster shot look like? Is there a higher or lower risk of an adverse event, compared to the earlier regimens?

Overall, the Covid-19 vaccines are overwhelmingly safe and remarkably effective. But as the shots went into millions of arms starting late last year, researchers uncovered a handful of sometimes serious side effects, which were so exceedingly rare that the clinical trials that led to the shots authorizations even with tens of thousands of participants couldnt capture them. Researchers dont fully understand the root causes of some of the side effects, but theyve also reported that the risk of some of them, including certain heart and blood clotting issues, is much higher after a Covid-19 infection itself than after receiving a Covid-19 vaccine.

STAT asked experts what the landscape of adverse events might look like following another dose, and they stressed that they were speculating. Because the additional doses havent gone into many arms yet, the amount of data is limited, so its impossible to forecast what will happen.

Were reading the tea leaves, said Mark Slifka of Oregon Health and Science University, an expert on immunology, viruses, and vaccines.

Recommended Reading: Is A Sore Throat A Covid Symptom

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