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EN
  • Arabic - عربي
  • Chinese (traditional) - 中國傳統
  • Chinese (simplified) - 中国简化
  • English
  • Khmer - ភាសាខ្មែរ
  • Nepali - नेपाली
  • Pashto - پښتو
  • Persian - فارسى
  • Spanish - español
  • Swahili - Kiswahili
  • Vietnamese - tiếng việt
What are you waiting for?

FACT

The Moderna COVID-19 vaccine is safe and effective and has been used extensively overseas.

FACT

The Moderna COVID-19 vaccine is safe and effective and has been used extensively overseas.

Data from clinical trials and safety surveillance overseas shows that the Moderna COVID-19 vaccine is safe for adolescents and adults.2 Moderna has been approved for people aged 12 and over in Australia.1

Very large clinical trials have shown that Moderna is effective in preventing COVID-19 in people aged 12 years and older.1 Moderna was 94.1% effective at preventing COVID-19 infection in people aged 18 and over who received two doses and had no evidence of being previously infected.1,4 The vaccine was also effective in people aged over 65 years (86%) and in adolescents aged 12-17 years.1

Moderna and other COVID-19 vaccines were developed quickly due to increased funding for vaccine research, and access to very large numbers of volunteers for research studies.1 The Therapeutic Goods Administration (TGA) assesses all vaccines in Australia before they are approved for use.1 This ensures that approved vaccines are safe, effective and manufactured to a very high quality standard.1

As of September 2021, over 152 million doses of the Moderna COVID-19 vaccine had been administered in the US and over 57 million doses in the European Union (EU).5

Moderna requires two doses, given four to six weeks apart.1 A person may not be fully protected against COVID-19 until 14 days after their second dose.3 The Moderna COVID-19 vaccine does not contain any live virus and it cannot give people COVID-19.1

Moderna is an mRNA vaccine, similar to the Pfizer COVID-19 vaccine, which contains the genetic code for an important part of the SARS-CoV-2 virus called the spike protein and this breaks down quickly in the body.1 After getting the vaccine, the body makes copies of the spike protein and the immune system learns to recognise and fight against the SARS-CoV-2 virus.1

The Centers for Disease Control and Prevention (CDC) found that among adults in the US without immunocompromising conditions, the Moderna COVID-19 vaccine is 93% effective against hospitalisation from COVID-19.6

In clinical trials, side effects were common within 7 days of getting vaccinated but were mostly mild to moderate.4 Side effects such as fever, chills, tiredness, and headache were more common after the second dose of the vaccine.4

While the Moderna COVID-19 vaccine is safe and effective, there are very rare side effects including severe allergic reaction, myocarditis (inflammation of the heart) and pericarditis (inflammation of the membrane around the heart).3

These rare effects on the heart typically occur:

  • within 10 days of vaccination
  • particularly after the second dose
  • more often in men under 30.3

There is a very low risk of developing myocarditis or pericarditis and in the US, the reported rates in males were 10 cases per million after first doses, and 67 cases per million after second doses.3 The TGA is monitoring the risk in the Australian population.3

More information

Therapeutic Goods Administration Spikevax (Moderna) Consumer Medicine Information

ProQuest Covid-19: Moderna vaccine is nearly 95% effective, trial involving high risk and elderly people shows

European Review for Medical and Pharmacological Sciences COVID-19 vaccines: comparison of biological, pharmacological characteristics and adverse effects of Pfizer and Moderna Vaccines

JAMA Network Necessity of 2 Doses of the Pfizer and Moderna COVID-19 Vaccines

Related facts

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