Vaccine myths and facts

Who ya gonna call? Mythbusters!

Is there something strange in your neighborhood? Like vaccine misinformation? If you’re on the fence about getting vaccinated for COVID-19, let us bust some myths for you.

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Get the facts about the COVID-19 vaccine

Are the vaccines safe and effective even though they were developed quickly?

YES. Millions of people in the United States have received COVID-19 vaccines under the most intense safety monitoring in history. The FDA, CDC, and Advisory Committee on Immunization Practices (ACIP) have carefully reviewed all available data and are confident the vaccines are safe and effective to prevent COVID-19.

Additional videos:

  • Is it safer to get the vaccine than COVID-19?
  • How was the vaccine made so fast?
  • How effective are the COVID-19 vaccines?
  • Get answers about the COVID-19 vaccine (English)


Get answers about the COVID-19 vaccine (English)

Are the vaccines effective?

YES. Data from both the clinical trials and real world studies show the COVID-19 vaccines are incredibly effective at preventing sickness, hospitalization, and death. Recent studies show the vaccines work against the new variants of the virus identified so far and prevent transmission of the virus to other people. Research also shows the vaccines help avoid long-term effects of COVID-19 and may actually improve things for those who are suffering from long-term effects of COVID-19. Studies show the vaccines likely provide longer lasting immunity compared to natural immunity (immunity from having the disease). Vaccination strengthens your immune response and is a safer way to build immunity than getting the disease again. COVID-19 can have serious long-term health effects that doctors are still learning about. 

You can see the efficacy data from each of the clinical trials here (Pfizer/BioNTech), here (Moderna), and here (Johnson & Johnson/Janssen).

Do the COVID-19 vaccines change your DNA?

NO. COVID-19 vaccines (Pfizer and Moderna) are mRNA vaccines and don’t interact with your DNA in any way. The vaccines don’t have any live virus in them and can’t give you COVID. Messenger RNA, or mRNA, is genetic material that tells your body how to make proteins. These types of vaccines teach your body how to make copies of the spike protein found on the coronavirus. This  triggers an immune response that creates antibodies to protect you from getting infected with COVID-19.

7 facts you need to know about COVID-19 vaccines flyer (English / Spanish)

Do the vaccines contain a microchip or tracking device?

NO. COVID-19 vaccines do not contain a microchip or tracking device. This misinformation was spread to scare people, and has been proven false. 

Curious what ingredients ARE in the vaccines? See what the ingredients of authorized COVID-19 vaccines are for yourself.

Do the vaccines make you magnetic?

NO. COVID-19 vaccines DO NOT make people magnetic or Bluetooth compatible. None of the ingredients in the FDA-authorized vaccines are magnetic, and none of the vaccines contain Bluetooth technology. Get the real facts behind this misinformation here, here, and here. Or check out the ingredients of authorized COVID-19 vaccines for yourself.


Are COVID-19 vaccines linked to infertility or miscarriage?

NO. Thousands of women have received the vaccine while they were pregnant or have become pregnant after getting the vaccine. Data shows that COVID-19 vaccines have not caused infertility, miscarriage, or complications with pregnancy or delivery for either the mother or baby. 

However, many pregnant women who have gotten the COVID-19 virus during pregnancy have had serious complications caused by the virus. Pregnant women are at an increased risk for severe illness from COVID-19 because their immune response is not as high.

Additional videos:

  • Are the vaccines linked to miscarriage:
  • Are the vaccines safe for breastfeeding mothers?
  • Are the vaccines safe for pregnant women?

    Will I experience long term side effects from the vaccine?

    It’s very unlikely. While it’s true we don’t have years of data on the COVID-19 vaccines, we do have hundreds of years of knowledge about the human body and vaccinations. Plus—because COVID-19 affected millions of people around the world at the same time—scientists got to study the effects of the vaccine on hundreds of thousands of people with different backgrounds and different levels of health—we got data that normally would have taken years to get. If you look at the history of all vaccinations, almost every long-term side effect from vaccination shows up between 6-8 weeks after vaccine clinical trials end. That’s why the FDA requires a wait time of at least 60 days after the end of a clinical trial before an emergency use authorization (EUA) can be given.

    Mild or moderate symptoms after getting vaccinated are normal and may last a few days, like a fever, muscle aches, headaches, feeling tired, or redness around the injection site. This is common after any vaccine, and means your body has started creating an immune response and is learning to fight the disease. Severe side effects and allergic reactions are rare. Your chance of having a life-threatening case of COVID-19 is much higher than your potential risk of ever getting a serious side effect from the vaccine.


    Do kids need to get vaccinated?

    YES. There is a common misunderstanding that children do not get COVID-19 or are not at risk for severe illness from the virus. However, some children do get sick enough to require treatment in the hospital. There is much we still don’t know about how COVID-19 will continue to impact children long-term.


    • 7 things parents should know about the COVID-19 vaccine (English / Spanish)
    • Ages 12 and older can get the vaccine (English / Spanish)
    • Kids and the vaccine - FAQs for parents (English)

    Do I need the vaccine if I’ve already had COVID-19?

    YES. You should still get vaccinated, even if you’ve already had COVID-19. Even if you still have some natural immunity, or immunity from having the virus, studies are showing the immunity from the vaccines adds another layer of protection, better protects against variants, keeps you from even getting the virus again, and lasts longer than natural immunity. Vaccination is a much safer and effective way to develop immunity than being infected by the virus because you don’t know how COVID-19 will affect you. 

    We have enough supply of vaccine for everyone. When the vaccines first became available, supplies were low and many states recommended waiting 90 days to get vaccinated after you’d had COVID-19, so we could make sure we had enough for those who were most at risk. This was the best recommendation at the time. We don’t have to do that anymore. You DO NOT need to wait 90 days after having COVID-19 to get vaccinated. You can get vaccinated as soon as you are no longer in isolation and you don’t have any symptoms.

    Can I get the vaccine if I have allergies?


    Have the vaccines caused any deaths?

    No. There have been no deaths directly caused by the vaccines, out of more than 302 million doses of COVID-19 administered in the United States from December 14, 2020 to June 7, 2021. If someone who got a COVID-19 vaccine dies—no matter what the cause of death was— the FDA requires healthcare providers to report the death to the Vaccine Adverse Event Reporting System or VAERS. The FDA does this as a safety step, so vaccine safety experts can review all clinical information available, including death certificates, autopsy reports, and medical records.


    Is it a HIPAA violation if someone asks me if I’m vaccinated for COVID-19?

    No. HIPAA laws are often misunderstood, so it makes it easy for misinformation to spread. HIPAA stands for Health Insurance Portability and Accountability Act of 1996 (Public Law 104-191). The law was made to make sure employees had health insurance between jobs. However, a privacy rule was added in 2003. The privacy rule is the part that is usually misunderstood. To find out more about HIPAA privacy rules and what personal health information (PHI) is protected, click here.

    Having accurate information and facts about COVID-19 vaccines is critical so you can make informed health decisions for yourself and your family. Get informed and help stop common myths and rumors.

    More myths and facts from the CDC