Better Together. Keep safe from COVID-19 and Flu this Season.

COVID-19 and flu spread more easily during the respiratory season, and cases usually peak at this time.1 Older adults and people with medical conditions face higher risks of serious illness.2

COVID-19 and flu vaccines can often be given at the same appointment3 - ask your doctor if this is right for you.

Locate a clinic near you to learn more4

Expand your knowledge of COVID-19

Whatever your age or health status, preventing severe COVID-19 is a priority. Learning all you can about COVID-19 can help protect you and those around you. Protecting yourself and those around you starts with understanding COVID-19. Speak to your doctor about COVID-19 protection and to see how updated vaccination can fit into your health routine, helping you maintain your lifestyle and lower the risk of severe illness or long COVID.

Frequently asked questions

COVID-19 spreads primarily through small respiratory droplets when an infected person coughs, sneezes, or talks.16 It can also spread by direct contact, such as touching or shaking hands, and by touching surfaces contaminated with the virus and then touching your face without washing your hands first.17

Yes, COVID-19 can lead to health complications. For some people, especially older adults or those with existing health conditions, it can cause serious problems like pneumonia18, heart issues19, or worsening of chronic illnesses20. Even after recovery, some people may continue to feel tired or have ongoing symptoms, sometimes called 'long COVID'.21

Have a conversation with your doctor to learn more

One way to protect yourself from COVID-19 is by staying updated with vaccination, as they are updated to match the latest virus strains.22 Frequent handwashing, wearing masks in crowded areas and staying home when feeling unwell can help lower the chance of getting infected and spreading the virus to others.23

Your doctor can help you understand what this means for you

Last season’s COVID-19 vaccines were designed to protect against the virus strains spreading at that time.24,26 This season’s vaccines are updated to better match against variants circulating now.25 This helps train your immunity and gives better protection against getting sick from the new strain.24,26

Symptoms of COVID-19 and flu can appear similar, but these infections are caused by different viruses.27 Specific testing is required to identify the virus and to tell them apart. Please consult your healthcare provider for more information.

Yes they can be given at the same time.28 Each vaccine is administered separately – they are not mixed in the same syringe. The vaccines can be given in the same arm (at different injection sites) or in different arms.29 Getting both vaccines in the same doctor’s visit makes it more convenient to get protected against both illnesses at once.30

After vaccination, mild side effects such as arm pain, tiredness, headache, or fever may occur and usually resolve within a few days. Rest, adequate hydration, and use of pain or fever relief can help ease discomfort. Immediate medical attention is recommended if experiencing rashes, chest pain or shortness of breath.22

Speak to your doctor to understand more on what to expect with vaccination

Yes, you can. While one’s primary doses need to be of the same brand, additional doses of COVID-19 vaccine can be a different brand and vaccine composition.31 Research has shown that this approach may lead to a higher immune response.32

For personalised medical advice, speak with your doctor

Resources

WHO COVID-19 Information

External Link to World Health Organization (WHO) COVID-19 info: global perspectives, situation reports, technical guidance, and public advice.

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Ministry of Health

External Link to Singapore's Ministry of Health's Update on the COVID-19 situation

Go to site

The Science of mRNA Vaccine

External link to Moderna corporate site

Go to site

  1. Centers for Disease Control and Prevention. People 65 Years and Older: Flu and High-Risk [Internet]. Atlanta (GA): CDC; Sept 5, 2024 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/highrisk/65over.htm
  2. Centers for Disease Control and Prevention. Risk Factors for Severe COVID-19 [Internet]. Atlanta (GA): CDC; [last updated unknown] [cited 2025 Sep 24]. Available from: https://www.cdc.gov/covid/riskfactors/index.html
  3. Centers for Disease Control and Prevention. Getting a Flu Vaccine and Other Recommended Vaccines at the Same Time [Internet]. Atlanta (GA): CDC; Sept 17, 2024 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/vaccines/coadministration
  4. Ministry of Finance. 2022. Assessment of the Impact of Key COVID-19 Budget Measures. https://www.mof.gov.sg/news-publications/featured-reports
  5. Ministry of Health Singapore. COVID-19 National Vaccination Programme. 2025, October 24. https://www.moh.gov.sg/seeking-healthcare/overview-of-diseases/covid-19-national-vaccination-programme/
  6. Ministry of Health Singapore. 2022, September. Report on excess mortality during the COVID-19 pandemic up to June 2022. https://www.moh.gov.sg/others/resources-and-statistics/report-on-excess-mortality-during-covid-19
  7. Kuang S, et al. 2023, December 8. Experiences of Canadians with long-term symptoms following COVID-19. Statistics Canada. December 2023. https://publications.gc.ca/site/eng/9.931251/publication.html
  8. CDC. (2025, March 10). Symptoms of COVID-19. https://www.cdc.gov/covid/signs-symptoms/index.html
  9. Ministry of Health. (2024, July 2). Status of COVID-19 Vaccination Among Singaporeans and Reasons for Not Taking Additional Booster Shots. https://www.moh.gov.sg/newsroom/status-of-covid-19-vaccination-among-singaporeans-and-reasons-for-not-taking-additional-booster-shots
  10. Data.gov.sg. (2024, June 6). Average daily hospitalised / ICU cases by Epi-week. URL: https://beta.data.gov.sg/ Search field: number of covid-19 infections by epi-week.
  11. Low L, L, et al. 2019, November 3. Epidemiologic Characteristics of Multimorbidity and Sociodemographic Factors Associated With Multimorbidity in a Rapidly Aging Asian Country. JAMA Network Open. 2019;2(11):e1915245. doi:10.1001/jamanetworkopen.2019.15245 (Reprinted)
  12. Moghadas, S.M. (2021, January 30). The Impact of Vaccination on Coronavirus Disease 2019 (COVID-19) Outbreaks in the United States. Clinical Infectious Disease. 2021;73(12):2257–64. https://doi.org/10.1093/cid/ciab079
  13. CDC. 2025, February 6. Underlying Conditions and the Higher Risk for Severe COVID-19. https://www.cdc.gov/covid/hcp/clinical-care/underlying-conditions.html
  14. World Health Organization. (2025, May 15). Statement on the antigen composition of COVID-19 vaccines. Available at: https://www.who.int/news/item/15-05-2025-statement-on-the-antigen-composition-of-covid-19-vaccines
  15. Ask.gov.sg. Can I receive other non-COVID-19 vaccines around the same time as the COVID-19 vaccine? https://ask.gov.sg/psq/post/can-i-receive-other-non-covid19-vaccines...
  16. CDC COVID-19. About COVID-19. Atlanta (GA): Center for Disease Control and Prevention; 2024 Jun 13 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/covid/about/index.html
  17. World Health Organization. Coronavirus disease (COVID-19) Internet. Geneva: World Health Organization; [cited 2025 Sep 24]. Available from: https://www.who.int/health-topics/coronavirus#tab=tab_1
  18. Ufuk F, Savaş R. COVID-19 pneumonia: lessons learned, challenges, and preparing for the future. Diagn Interv Radiol. 2022 Nov;28(6):576-585. doi:10.5152/dir.2022.221881. PMID: 36550758; PMCID: PMC9885718.
  19. Hilser, J. R., et al. (2024, Oct 9). COVID-19 Is a Coronary Artery Disease Risk Equivalent and Exhibits a Genetic Interaction With ABO Blood Type. Arteriosclerosis, thrombosis, and vascular biology, 44(11), 2321–2333. https://doi.org/10.1161/ATVBAHA.124.321001
  20. Suri, C.,et al. (2024, October 8). Interplay between Lung Diseases and Viral Infections: A Comprehensive Review. Microorganisms, 12(10), 2030. https://doi.org/10.3390/microorganisms12102030
  21. Berends, M. S., et al. (2025, July). Impact of pre-existing comorbidities and multimorbidities, demography and viral variants on post-acute sequelae of COVID-19 (‘Long COVID’) in Dutch primary care: A retrospective cohort study. International Journal of Infectious Diseases, 156, Article 107912. https://doi.org/10.1016/j.ijid.2025.107912
  22. World Health Organization. COVID-19 vaccines: advice [Internet]. Geneva: WHO; last updated October 8, 2024 [cited 2025 Sep 24]. Available from: https://www.who.int/emergencies/diseases/novel-coronavirus-2019/covid-19-vaccines/advice
  23. Communicable Diseases Agency. COVID-19. Singapore: Government of Singapore; last updated 18 September 2025 [cited 2025 Sep 24]. Available from: https://www.cda.gov.sg/public/diseases/covid-19
  24. World Health Organization. Statement on the antigen composition of COVID-19 vaccines [Internet]. Geneva: WHO; 15 May 2025 [cited 2025 Sep 24]. Available from: https://www.who.int/news/item/15-05-2025-statement-on-the-antigen-composition-of-covid-19-vaccines
  25. European Medicines Agency. ETF recommends updating COVID-19 vaccines to target new LPB.1 variant [Internet]. Amsterdam: EMA; 2025 May 16 [cited 2025 Sep 24]. Available from: https://www.ema.europa.eu/en/news/etf-recommends-updating-covid-19-vaccines-target-new-lpb1-variant
  26. U.S. Food and Drug Administration. COVID-19 Vaccines 2025–2026 formula for use in the United States beginning Fall 2025 [Internet]. Silver Spring (MD): FDA; [last updated date unknown] [cited 2025 Sep 24]. Available from: https://www.fda.gov/vaccines-blood-biologics/industry-biologics/covid-19-vaccines-2025-2026-formula-use-united-states-beginning-fall-2025
  27. Centers for Disease Control and Prevention. Similarities and Differences between Flu and COVID-19 [Internet]. Atlanta (GA): CDC; 2024 Sept 17 [cited 2025 Sep 24]. Available from: https://www.cdc.gov/flu/about/flu-vs-covid19.htm
  28. Naficy, A., et al. (2024, Mar 21). No immunological interference or concerns about safety when seasonal quadrivalent influenza vaccine is co-administered with a COVID-19 mRNA-1273 booster vaccine in adults: A randomized trial. Human vaccines & immunotherapeutics, 20(1), 2327736. https://doi.org/10.1080/21645515.2024.2327736
  29. Immunize.org. How to Administer Multiple Intramuscular Vaccines to Adults During One Visit [Internet]. Immunize.org; December 4, 2023 [cited 2025 Sep 24]. Available from: https://www.immunize.org/wp-content/uploads/catlg/c2030.pdf
  30. World Health Organization. [Title unknown – WHO document IRIS handle 10665/346897] [Internet]. Geneva: WHO; [publication date unknown] [cited 2025 Sep 24]. Available from: https://iris.who.int/handle/10665/346897
  31. Ministry of Health. Can I receive other brands of the same vaccine doses of the same brand? [Internet]. Updated 11 mo ago [cited 2025 Sep 24]. Available from: https://www.moh.gov.sg/psq/post/can-i-receive-other-brands-of-the-same-vaccine-doses-of-the-same-brand?from=topics
  32. Poh X.Y., et al. (2022, May 11). Antibody Response of Heterologous vs Homologous Messenger RNA Vaccine Boosters Against the Severe Acute Respiratory Syndrome Coronavirus 2 Omicron Variant: Interim Results from the PRIBIVAC Study, a Randomized Clinical Trial. Clin Infect Dis. 2022;75(12):2088-2096. doi:10.1093/cid/ciac345

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