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If you have questions about COVID-19 vaccines, the best person to ask is a health care professional, like your doctor.

Fact: Blood donated by individuals who have received an FDA-approved/authorized COVID-19 vaccine and meet all required eligibility criteria for blood donation is safe for transfusion.

More Information: The FDA does not recommend a deferral period for individuals who have received a nonreplicating, inactivated, or mRNA-based COVID-19 vaccine, which encompasses all FDA approved or authorized COVID-19 vaccines. Individuals who have recovered from COVID-19 or have received COVID-19 vaccines or other vaccines are eligible to donate blood, and the U.S. depends on such volunteer blood donors to save patients’ lives when they need a blood transfusion. The FDA’s considerations for blood donor eligibility following COVID-19 infection or vaccination against COVID-19 are available here. The FDA has also issued a safety communication about directed blood donations and has warned consumers and health care professionals about websites claiming to offer blood from donors who have not been vaccinated against COVID-19.

Bottom Line: Blood donated by individuals who have received an FDA-approved/authorized COVID-19 vaccine and meet all required eligibility criteria for blood donation is safe for transfusion.

Fact: Information about ingredients in the COVID-19 vaccines is available on public websites. FDA-approved and authorized COVID-19 vaccines do not contain microchips, pesticides, or any type of metal.

More Information: Information about the ingredients in FDA-approved and authorized vaccines COVID-19 vaccines is publicly available.

For the vaccines that are authorized for emergency use (referred to as emergency use authorization or EUA), the ingredients are included in the Fact Sheet for Healthcare Providers and also the Fact Sheet for Recipients and Caregivers under the question "What are the ingredients in this vaccine?”:

For the FDA-approved COVID-19 vaccines, the ingredients are included in the Prescribing Information for healthcare providers and in the Information for Recipients and Caregivers for vaccine recipients. Vaccine recipients would find this information under the question, “What are the ingredients in this vaccine?”:

  • Spikevax (COVID-19 vaccine, mRNA) – see the Prescribing Information and Information for Recipients and Caregivers
  • Comirnaty (COVID-19 vaccine, mRNA) – see the Prescribing Information and Information for Recipients and Caregivers

Bottom Line: As with all FDA-approved vaccines, all of the FDA-approved and authorized COVID-19 vaccines contain ingredients needed to ensure their safety and effectiveness and help protect you from serious outcomes of COVID-19, including hospitalization and death. None of the COVID-19 vaccines contain microchips, pesticides or metals.

Fact: COVID-19 vaccines don’t cause COVID-19 or other diseases such as mpox (monkeypox), flu, or respiratory syncytial virus (RSV).

More Information: None of the COVID-19 vaccines can cause the disease, COVID-19. No COVID-19 vaccine can cause another disease such as mpox, flu or RSV. The CDC has more information about how COVID-19 vaccines work.

Bottom Line: None of the FDA-approved or authorized COVID-19 vaccines can cause COVID-19. The vaccines will not infect you with the SARS-CoV-2 virus or another virus.

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