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  • Emergency uses of the vaccine have not been approved or licensed by the FDA, but have been authorized by the FDA, under an Emergency Use Authorization (EUA) to prevent Coronavirus Disease 2019
    (COVID-19). The Moderna
    COVID-19 Vaccine is authorized in individuals
    6 months of age and older as a primary series. The Moderna COVID-19 Vaccine, Bivalent is authorized as a booster dose in individuals

    6 months through 5 years of age at least 2 months after the Moderna COVID-19 Vaccine primary series and is authorized in individuals 6 years of age and older at least 2 months after any authorized or approved vaccine.

  • The EUA for these products is in effect for the duration of the COVID-19 EUA declaration justifying emergency use of the product, unless the declaration is terminated or the authorization is revoked sooner.

  • For more information on the EUA authorized uses of the vaccine, refer to the Fact Sheets for Healthcare Providers Administering Vaccine (Vaccine Providers) and Full Prescribing Information.

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Who Is Moderna?

Moderna is a biotechnology company founded in 2010 in Cambridge, Massachusetts. At Moderna, we are pioneering a class of medicines based on messenger RNA (mRNA).

Every cell in the body uses mRNA to provide
real-time instructions to make the proteins necessary to drive many aspects of biology, including in human health and disease.

We are currently developing mRNA-based vaccines and therapeutics for a variety of conditions, including COVID‑19.

Founded in 2010

What Is the Mechanism of Action of the Vaccine?

The nucleoside-modified mRNA in the Moderna COVID‑19 Vaccine is formulated in lipid particles, which enable delivery of the nucleoside‑modified mRNA into host cells to allow expression of the SARS‑CoV‑2 Spike antigen. The vaccine elicits an immune response to the Spike antigen, which protects against COVID‑19.

mRNA in a fatty particle

What Does It Mean That the Vaccine Is Based on mRNA Technology?

A vaccine based on messenger RNA (mRNA) technology does not use inactivated virus, attenuated virus, or any other kind of virus.

Moderna COVID‑19 Vaccines use mRNA to provide a blueprint for your cells to build your body’s defense against the virus.

This allows the body to generate an antibody response, and to retain the information in memory immune cells, with the goal of attacking the virus if the vaccinated individual is exposed.

No virus within vaccine

IMPORTANT SAFETY INFORMATION

Contraindications

Do not administer the vaccines to individuals with a known history of a severe allergic reaction (e.g., anaphylaxis) to any component of the Moderna COVID-19 Vaccine or Moderna COVID-19 Vaccine, Bivalent.

Warnings and Precautions

  • Management of Acute Allergic Reactions: Appropriate medical treatment to manage immediate allergic reactions must be immediately available in the event an acute anaphylactic reaction occurs following administration of the vaccines. Monitor vaccine recipients for the occurrence of immediate adverse reactions according to the Centers for Disease Control and Prevention guidelines (https://www.cdc.gov/vaccines/covid-19/clinical-considerations/managing-anaphylaxis.html).
  • Myocarditis and Pericarditis: Postmarketing data demonstrate increased risks of myocarditis and pericarditis, particularly within 7 days following receipt of the second primary series dose or first booster dose. The observed risk is highest in males 18 through 24 years of age. The CDC has published considerations related to myocarditis and pericarditis after vaccination, including for vaccination of individuals with a history of myocarditis or pericarditis (https://www.cdc.gov/vaccines/covid-19/clinical-considerations/myocarditis.html).
  • Syncope (fainting): May occur in association with administration of injectable vaccines. Procedures should be in place to avoid injury from fainting.
  • Altered Immunocompetence: Immunocompromised persons, including individuals receiving immunosuppressive therapy, may have a diminished response to the vaccines.
  • Limitations of Vaccine Effectiveness: The vaccines may not protect all vaccine recipients.

Adverse Reactions

Adverse reactions reported in clinical trials for individuals 6 years of age and older following administration of the Moderna COVID-19 Vaccine include pain at the injection site, fatigue, headache, myalgia, chills, nausea/vomiting, axillary swelling/tenderness, fever, erythema at the injection site, swelling at the injection site, and arthralgia.

Adverse reactions in children 6 months through 5 years of age following administration of Moderna COVID-19 Vaccine include pain at the injection site, irritability/crying, fatigue, sleepiness, loss of appetite, headache, fever, myalgia, chills, nausea/vomiting, axillary (or groin) swelling/tenderness, arthralgia, erythema at the injection site, and swelling at the injection site.

Anaphylaxis and other severe allergic reactions, myocarditis, pericarditis, and syncope have been reported following administration of the Moderna COVID-19 Vaccine during mass vaccination outside of clinical trials.

Additional adverse reactions, some of which may be serious, may become apparent with more widespread use of the vaccines.

Reporting Adverse Events and Vaccine Administration Errors

The vaccination provider is responsible for mandatory reporting of the following to the Vaccine Adverse Event Reporting System (VAERS):

  • vaccine administration errors whether or not associated with an adverse event
  • serious adverse events (irrespective of attribution to vaccination)
  • cases of myocarditis
  • cases of pericarditis
  • cases of Multisystem Inflammatory Syndrome (MIS)
  • cases of COVID-19 that result in hospitalization or death

Complete and submit reports to VAERS online at https://vaers.hhs.gov/reportevent.html. For further assistance with reporting to VAERS, call 1‑800‑822‑7967. Reports should include the words “Moderna COVID-19 Vaccine EUA” or “Moderna COVID‑19 Vaccine, Bivalent EUA” in the description section of the report.

Report to ModernaTX, Inc. by calling 1‑866‑MODERNA (1‑866‑663‑3762) or provide a copy of the VAERS form by faxing 1‑866‑599‑1342 or emailing .

Please see the Vaccine Fact Sheets for Healthcare Providers Administering Vaccine (Vaccine Providers) and Full Prescribing Information for: