Sanofi sets Singapore Book of Records with the ‘Largest Mural of Magnetic Hands’ - a Public Pledge against Respiratory Syncytial Virus (RSV) in Nationwide Awareness Campaign

• Sanofi has achieved a new Singapore Book of Records milestone featuring more than 1,000 RSV awareness pledges.
• The Together Against RSV campaign unites families, healthcare partners and communities to spotlight the risks of RSV and its impact on all infants.

Each magnetic hand symbolises a pledge of protection, creating an impactful visual reminder of the nation's shared commitment to safeguarding young children's health against RSV.

SINGAPORE - Media OutReach Newswire - 13 October 2025 - Sanofi has made history with a nationwide public health activation by clinching a spot in the Singapore Book of Records with the 'Largest Mural of Magnetic Hands', a public pledge against Respiratory Syncytial Virus (RSV) in its Together Against RSV campaign. The striking mural featured a total of over 1,000 hand pledges, each representing a parent, caregiver, or supporter who committed to raising awareness of Respiratory Syncytial Virus (RSV) – a common yet potentially serious virus – and protecting all infants from its risks.

Over the three-day event at Serangoon NEX, families, healthcare partners, and community members came together to symbolically place hand-shaped magnets on a panelled mural, with each hand carrying a personal pledge of commitment to learning about and fighting against RSV.

Zainab Sadat, Head of Vaccines, Sanofi Southeast Asia & India

"This record is more than just numbers; it is a symbol of unity and a testament to the collective power of Singaporean families, healthcare professionals, and communities coming together for a cause that truly matters. Through our 'Together Against RSV' campaign, we hope to spark ongoing conversations about RSV and empower parents with knowledge and preventive measures, including immunisation options, to protect their little ones. Together, we are building a future where every baby can breathe a little easier, and every family can rest a little more peacefully."

The mural, measuring 2 meters tall by 5.1 meters wide, now serves as a striking visual reminder of the nation's shared commitment to combating RSV. The event also complemented wider awareness initiatives, including collaborations with hospitals, parent communities, and an educational microsite (TogetherAgainstRSV.sg) in collaboration with the Singapore Paediatric Society, as part of Sanofi's mission to empower parents with trusted information and preventive solutions.

Around the world, about two in three infants contract RSV before their first birthday¹, making it the most common cause of lower respiratory tract infections, including bronchiolitis and pneumonia, in young children². In Singapore, RSV is also a leading cause of infant hospitalisations, with the majority of cases occurring in otherwise healthy, full-term babies. Each year, an estimated 1,804 children under 29 months are hospitalised due to RSV-related illness^3-7.

Hashtag: #Sanofi

The issuer is solely responsible for the content of this announcement.

About RSV

RSV is a highly contagious virus that can lead to serious respiratory illness for infants.² It is a leading cause of hospitalisation in all infants, with most hospitalisations for RSV occurring in otherwise healthy infants born at term^3-7. Two out of three infants are infected with RSV during their first year of life and almost all children are infected by their second birthday¹. Globally, in 2019, there were approximately 33 million cases of acute lower respiratory infections leading to more than three million hospitalisations, and it was estimated that there were 26,300 in-hospital deaths of children younger than five years⁸. RSV-related direct medical costs, globally — including hospital, outpatient and follow-up care — were estimated at €4.82 billion in 2017⁹.

About Sanofi

Sanofi is an R&D driven, AI-powered biopharma company committed to improving people's lives and delivering compelling growth. We apply our deep understanding of the immune system to invent medicines and vaccines that treat and protect millions of people around the world, with an innovative pipeline that could benefit millions more. Our team is guided by one purpose: we chase the miracles of science to improve people's lives; this inspires us to drive progress and deliver positive impact for our people and the communities we serve, by addressing the most urgent healthcare, environmental, and societal challenges of our time.

For more information, visit www.sanofi.com.

Sanofi Forward-Looking Statements
This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These statements include projections and estimates and their underlying assumptions, statements regarding plans, objectives, intentions and expectations with respect to future financial results, events, operations, services, product development and potential, and statements regarding future performance. Forward-looking statements are generally identified by the words "expects", "anticipates", "believes", "intends", "estimates", "plans" and similar expressions. Although Sanofi's management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Sanofi, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include among other things, the uncertainties inherent in research and development, future clinical data and analysis, including post marketing, decisions by regulatory authorities, such as the FDA or the EMA, regarding whether and when to approve any drug, device or biological application that may be filed for any such product candidates as well as their decisions regarding labelling and other matters that could affect the availability or commercial potential of such product candidates, the fact that product candidates if approved may not be commercially successful, the future approval and commercial success of therapeutic alternatives, Sanofi's ability to benefit from external growth opportunities, to complete related transactions and/or obtain regulatory clearances, risks associated with intellectual property and any related pending or future litigation and the ultimate outcome of such litigation, trends in exchange rates and prevailing interest rates, volatile economic and market conditions, cost containment initiatives and subsequent changes thereto, and the impact that pandemics or other global crises may have on us, our customers, suppliers, vendors, and other business partners, and the financial condition of any one of them, as well as on our employees and on the global economy as a whole. The risks and uncertainties also include the uncertainties discussed or identified in the public filings with the SEC and the AMF made by Sanofi, including those listed under "Risk Factors" and "Cautionary Statement Regarding Forward-Looking Statements" in Sanofi's annual report on Form 20-F for the year ended December 31, 2022. Other than as required by applicable law, Sanofi does not undertake any obligation to update or revise any forward-looking information or statements.

References

1. Walsh, EE. Respiratory Syncytial Virus Infection: An Illness for All Ages. Clinics in Chest Medicine. 2017;38(1):29-36.
2. Karron A. Respiratory Syncytial Virus Vaccines and Monoclonal antibodies. Orenstein W, Offit P, Edwards KM, Plotkin S. Plotkin's Vaccines, eighth edition: 998-1004. Elsevier 2023.
3. Leader S, Kohlhase K. Recent trends in severe respiratory syncytial virus (RSV) among US infants, 1997 to 2000. J Pediatr. 2003;143(5 Suppl):S127-S132. doi:10.1067/s00223476(03)00510-9.
4. Zhou H, et al. Hospitalizations associated with influenza and respiratory syncytial virus in the United States, 1993-2008. Clin Infect Dis. 2012;54:1427–1436.
5. Rha B, et al. Respiratory Syncytial Virus-Associated Hospitalizations Among Young Children: 2015-2016. Pediatrics. 2020;146:e20193611.
6. Arriola CS, et al. Estimated Burden of Community-Onset Respiratory Syncytial Virus-Associated Hospitalizations Among Children Aged
7. Tam CC, et al. Burden and Cost of Hospitalization for Respiratory Syncytial Virus in Young Children, Singapore. Emerg Infect Dis. 2020 Jul;26(7):1489-1496
8. Li Y, et al. Global, regional, and national disease burden estimates of acute lower respiratory infections due to respiratory syncytial virus in children younger than 5 years in 2019: a systematic analysis. Lancet 2022;399:92047–64.
9. Zhang S, et al. Cost of Respiratory Syncytial Virus-Associated Acute Lower Respiratory Infection Management in Young Children at the Regional and Global Level: A Systematic Review and Meta-Analysis. J Infect Dis. 2020;222(Suppl 7):S680-687.

MAT-SG-2500364-1.0-10/202