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Updated on June 23, 2022 1:32 am
All countries
Updated on June 23, 2022 1:32 am
All countries
Updated on June 23, 2022 1:32 am

Global Statistics

All countries
Updated on June 23, 2022 1:32 am
All countries
Updated on June 23, 2022 1:32 am
All countries
Updated on June 23, 2022 1:32 am
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How Long Do Side Effects From Covid Shot Last

Helpful Tips To Relieve Side Effects

COVID-19: What are the possible side effects of the COVID-19 vaccine?

Talk to your doctor about taking over-the-counter medicine, such as ibuprofen, acetaminophen, aspirin, or antihistamines, for any pain and discomfort you may experience after getting vaccinated. You can take these medications to relieve post-vaccination side effects if you have no other medical reasons that prevent you from taking these medications normally.

It is not recommended you take these medicines before vaccination for the purpose of trying to prevent side effects.

Covid Vax Works Even Without The Side Effects

You are free to share this text beneath the Attribution 4.0 International license.

Pfizer and Moderna mRNA vaccines yield a strong antibody response even when individuals dont develop vital side impact signs following vaccination, a brand new research reveals.

When the two messenger RNA vaccines for COVID-19 first grew to become available, many individuals talked about side effects, every part from complications to chills to feeling exhausted for a pair days. Yet loads of others appeared to take the pictures in stride, barely registering a lot past a sore arm.

It was widespread to imagine that feeling awful was a great factor, an indication that your physique was working additional time to develop its defenses in opposition to COVID.

Researchers carried out a research of practically 1,000 well being care staff in the Johns Hopkins Health System who obtained two doses of both the vaccine manufactured by Pfizer/BioNTech or Moderna. The findings seem in JAMA Internal Medicine.

The two mRNA vaccines evaluated in the research introduce the physiques immune system to S1, a protein subunit thats a part of the spikes discovered on the floor of SARS-CoV-2. The spikes allow the virus to latch onto wholesome cells and infect them.

Immunoglobulin G antibodies elicited by S1 from the vaccines stimulating the immune system neutralize the virus particles, stopping an infection by SARS-CoV-2, or not less than decreasing the severity of the illness.

Autonomic Nervous System Symptoms After Covid

Postural orthostatic tachycardia syndrome, or POTS, is a condition that affects blood circulation, and people who have survived COVID-19 may be more vulnerable to it. Tae Chung, M.D., who specializes in physical medicine and rehabilitation, says POTS can leave survivors with other neurologic symptoms, including continuing headache, fatigue, brain fog, difficulties in thinking or concentrating, and insomnia.

Even in patients without POTS, persistent post-COVID-19 insomnia, or COVID-somnia is an increasingly common complaint among COVID-19 survivors.

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What Is The Treatment For Long Covid

Doctors and therapists can work with you to address symptoms. The Johns Hopkins Post-Acute COVID-19 Team is a special multidisciplinary clinic to support the recovery of people who have had COVID-19, and similar clinics are emerging at other hospitals.

Breathing exercises, physical therapy, medications and other treatments can help improve your health, but be prepared for a gradual recovery.

Clinical Contributors To This Story


Thomas Bader, M.D. contributes to topics such as Medical Quality.

After hearing how some of your friends have fared when they got the COVID-19 vaccine, are you wondering how youll feel once you receive the shot? Some people experience flu-like symptoms. Others feel discomfort at the injection site. Still others dont notice anything at all. Its impossible to know what side effects you may experience until you get vaccinated, but symptoms typically disappear within a few days.

Here are answers to questions that you may have about COVID-19 vaccine side effects:

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Do Johnson & Johnson Recipients Need A Booster Shot

Some worry that giving boosters to people in wealthy nations will waste precious doses that could be given to unvaccinated people in poorer countries. To prevent this, the World Health Organization called for a moratorium on boosters until at least the end of September.

On Aug. 25, 2021, Johnson & Johnson announced that people who initially received a single shot vaccine and then received the same shot as a booster produced a much stronger antibody response than after receiving a single dose. This new study provides data to support a booster for those who received the single-dose Johnson & Johnson vaccine despite the larger controversy and uncertainty.

On Aug. 22, 2021, U.S. Surgeon General Dr. Vivek Murthy said that Johnson & Johnson recipients will likely need a booster. The government needs more information before making a recommendation about the need for a booster shot, and since the vaccine was rolled out three months after the mRNA vaccines, key studies are still in progress.

One important question is whether someone who received the Johnson & Johnson shot should get a second Johnson & Johnson dose or mix and match get a second dose of a different vaccine.

Reactions Are More Intense After Second Dose And Developing Covid

The Moderna shot is a messenger RNA vaccine that teaches our cells to make a piece of SARS-CoV-2 protein and mount an immune response against it.

That way, if a person were to be exposed to the coronavirus, their body would already know how to fight it and prevent severe disease.

The first dose is considered the prime and trains your body to recognize the virus, according to Swaminathan.

Since that is the first exposure, reactions tend to be mild, Swaminathan said.

The second dose, the booster, further cements the immune response.

Since the patients have already seen the vaccine from the first shot, the second booster is an exaggerated response to the same, Swaminathan said.

Research also suggests reactions are more intense in people who previously had COVID-19 since they likely have some level of preexisting immunity.

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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.

How Long Do Side Effects Of Second Covid Vaccine Last

What Are the Long-term Side Effects of COVID-19 Vaccine?

Image Source: Pexels

Experts suggest that younger people whove taken the jab should avoid strenuous physical activity for at least a week after their second dose. Thats also when most side effects of the vaccine will affect your body.

Furthermore, about 68 per cent of adverse reactions to the vaccine were among people under the age of 60 years, the HSA reported. This aligns with the clinical trials of the two mRNA-based vaccines that also saw younger folks experiencing more adverse effects of the vaccination.

This may be due to the more active immune response system, which is the bodys natural defence mechanism that helps build immunity against the virus. Moreover, adverse reactions in women stood at over 64 per cent.

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When Should I See A Doctor About Post

Long-term COVID-19 symptoms can be similar to signs of other disease, so it is important to see your doctor and rule out other problems, such as cardiac issues or lung disease.

Dont ignore loss of smell, depression, anxiety or insomnia, or write these off as unimportant or all in your head. Any symptom that interferes with your daily life is worth a call to your doctor, who can help you address these problems and improve the quality of your life.

If you experience new chest pain, difficulty breathing, bluish lips or any other sign of a life-threatening problem, call 911 or emergency services right away.

Mental Health Issues After Covid

After surviving COVID-19, some people are left with lingering anxiety, depression and other mental health issues. Physical changes such as pain and weakness can be complicated by long periods of isolation, stress from job loss and financial difficulties, and grief from the deaths of loved ones and the loss of good health.

Patients who were hospitalized have a particularly challenging recovery. Brigham says Post-intensive care syndrome, or PICS, puts COVID-19 survivors and other people who have spent time in the ICU at a higher risk for problems with mental health, cognition and physical recovery.

Megan Hosey, Ph.D., a rehabilitation psychologist, says that prolonged time in the ICU can cause delirium. The strange surroundings, multiple mind-altering medications, isolation and loss of control can leave patients with lasting and recurrent sensations of terror or dread, including post-traumatic stress disorder .

Many patients have hallucinations where they believe that medical providers are trying to harm them, Hosey says. We’ve had patients tell us things like I thought I was being buried alive when they were being put into an MRI.

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Doctors Say You Should Get A Covid Test If Your Vaccine Side Effects Last Longer Than 72 Hours

Vaccine side effects are normal, but they should only last a few days, according to the CDC. If they stick around longer, you could actually be experiencing symptoms of COVID. Common side effects of the vaccinelike fatigue, fever, and body achesare also symptoms that develop if you have the virus. “If your symptoms last longer than 72 hours, it is worth making sure you don’t actually have COVID-19,” Manisha Juthani, MD, an infectious diseases specialist at Yale Medicine and associate professor at the Yale School of Medicine, told Verywell. And for more on the vaccine,;This Is the Only Way to Tell If Your COVID Vaccine Worked, Doctors Say.

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.

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Is There Something Wrong If I Dont Experience Side Effects From The Covid

No. After getting the COVID-19 vaccine, some people dont notice any pain at the injection site, and they also dont feel run-down or achy in any way. Thats normal and expected when it happens. Many people who were vaccinated during the COVID-19 clinical trials experienced no symptoms but were found to be protected by the vaccine. So if you dont feel under the weather, dont worry its still working.

Dont Other People Need It More Than Me

You may be thinking, Im a young and healthy individual, there are plenty of people that need this vaccine before me. At this point, the vaccine is widely available. Its open to anyone age 16 and older.;Therefore, by getting vaccinated you are helping get to the goal of herd immunity, which ultimately puts everyone in a safer place than if you wait to get vaccinated.

The longer we wait to get vaccinated, the more likely variants are to emerge. The best way to stop variants is to be vaccinated and decrease the spread of infections.

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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.

From Mild Side Effects To Long

Many report side effects after second COVID-19 vaccine dose

By health reporter Olivia Willis

It’s normal to feel a bit lousy in the day or two after your COVID-19 jab ;in fact, it can be helpful to think of it as a positive sign.

Experts say mild side effects like tiredness, fevers, muscle aches, and arm pain are “normal signs your body is building protection”.

But if feeling rubbish offers some reassurance that the vaccine is working, what;does it mean if you don’t have;symptoms after the jab?

Thankfully, it’s nothing to worry about: an absence of symptoms is not a sign the vaccine isn’t doing its job, according to;research;published this week in JAMA Internal Medicine.

It suggests people who don’t experience any side effects from mRNA COVID-19 vaccines still produce a robust antibody response.

US researchers measured the antibody levels of almost 1,000 healthcare workers two weeks after their second dose of the Pfizer or Moderna vaccine, and asked them to report any side effects.

They found almost 100 per cent of vaccine recipients “mounted a strong antibody response to the spike protein ;independent of vaccine-induced reactions”.

The findings echo what clinical trials show: COVID-19 vaccines are highly effective irrespective of age, sex, or the presence of side effects.

So why do vaccines leave some of us feeling worse than others? And how exactly does our body mount an immune response?

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Which Covid Vaccine Has The Least Side Effects

According to doctor Khan, this data is not available, so we dont know this yet.

However, doctor Liakas shares that it depends on a range of variables.

With the Pfizer vaccine, adverse reactions were reported more by younger people, rather than those over the age of 55 years, he explains.

On the other hand, the adverse reactions from the Oxford/AstraZeneca vaccine were generally seen by younger people, he shares. Plus, the strongest association between thrombosis and the Oxford/AstraZeneca vaccine was found between younger people and especially young women.

Do note: as a result, the official advice for women under the age of 40 is still to opt for one of the other vaccines.

Should You Take The Vaccine

The answer is yes.

The sooner we take the vaccine, the faster we recover and can go back to living our normal lives. The benefits of the vaccine outweigh the risks that remain minimal.

HSA and the Ministry of Health will continue to monitor the safety profile of the Covid-19 vaccines closely and update members of the public of any significant safety concerns detected with the vaccines, as HSA stated.


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Table 4 Systemic Reactions In Persons Aged >55 Years Pfizer

Table 4. Systemic reactions in persons aged >55 years, Pfizer-BioNTech COVID-19 vaccine and Placebo

Dose 1

a Mild: does not interfere with activity; moderate: some interference with activity; severe: prevents daily activity; Grade 4: emergency room visit or hospitalization for severe fatigue, severe headache, severe muscle pain, or severe joint pain.

b Mild: 1 to 2 times in 24 hours; moderate: >2 times in 24 hours; severe: requires intravenous hydration; Grade 4: emergency room visit or hospitalization for severe vomiting.

c Mild: 2 to 3 loose stools in 24 hours; moderate: 4 to 5 loose stools in 24 hours; severe: 6 or more loose stools in 24 hours; Grade 4: emergency room visit or hospitalization for severe diarrhea.

Potential Adverse Effects Of Covid

What to expect after a COVID

Some of the most frequent adverse effects of the Covid-19 vaccine included anaphylaxis. There were 26 such cases, all of which recovered after receiving medical treatment. The rate of anaphylaxis due to the vaccine is 0.85 cases per 100,000 doses of the vaccine, which is consistent with the worldwide incidence rates.

In addition to anaphylaxis, there were reports of 23 cases of severe allergic reactions. The HSA listed the following as some of them:

  • Breathing difficulty

  • Seizures

  • Tinnitus and infections

The individuals who experienced such reactions have recovered or are in the process to do so. The authorities are closely monitoring their health.

The authorities also reported about 45 cases related to Bells palsy. The condition causes temporary weakness or paralysis of facial muscles. The patients did recover from the same and most cases werent serious, says the HSA. The incidence rate for Bells Palsy in Singapore is about 3.35 people per 100,000 per month.

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