PRESS RELEASE
- New research projects significant increase in RSV-related hospitalisations among older adults over next five years
Wednesday, 23 September 2026: Ireland's rapidly ageing population is expected to place increasing pressure on healthcare services in the years ahead, according to new research launched today at Well into the Future: Preparing Ireland's Healthcare System for an Ageing Population, a symposium moderated by broadcaster Pat Kenny, which brought together policymakers, healthcare professionals, patient advocates and older people's organisations.
The new report by Forvis Mazars, and commissioned by Pfizer Healthcare Ireland, examines how respiratory syncytial virus (RSV) could increase demand on Ireland's health services as the population ages, based on three potential scenarios related to population ageing and reporting of cases.1 The report projects that RSV-related hospitalisations among adults aged 65 years and older could increase significantly over the coming years as the number of older adults in Ireland continues to grow.
RSV is a common seasonal respiratory virus that typically causes mild, cold-like symptoms.2 However, it can result in serious illness among older adults and can exacerbate underlying conditions including chronic obstructive pulmonary disease (COPD), asthma and congestive heart failure.3 Accurately diagnosing RSV among older adults can also be challenging, meaning the burden of the virus may be underestimated.4
The research finds that RSV is already having a significant impact in Ireland. Between 2022 and 2025, there were more than 3,000 RSV-related hospitalisations and 159 deaths reported among adults aged 65 and over. In 2025 alone, 740 hospitalisations, 13 ICU admissions and 46 deaths were reported in this age group. Older adults are at a higher risk of complications from RSV and in 2025 more than half of the hospitalisations involved adults aged 80 and over.5
Ireland's population is ageing, with the number of people aged 65 and over projected to grow by around 3% annually over the next five years, while the number of people aged 80 and over is projected to increase by approximately 5% each year.6 Adults aged 80 and over already account for more than half of RSV-related hospitalisations among older adults, and this growing demographic is expected to drive further increases in RSV-related healthcare demand6.
Hospital Capacity
The impact on hospital capacity is expected to grow even more quickly than the number of admissions. Annual acute hospital bed use attributable to RSV among older adults was approximately 18,734 bed days in 2025 and is projected to rise to 23,975 bed days by 2031 under the central scenario, with the high scenario projecting as many as 39,913 bed days.8
The impact of RSV is expected to be felt most during the winter months, when hospitals are already under pressure from other seasonal illnesses.9 The research found that almost two-thirds of all RSV-related bed demand is likely to occur within a 10-week period each winter, placing additional strain on hospital capacity at its busiest time of year.10
The research also highlights the financial implications associated with RSV. Under the central scenario, RSV-related health system impacts, which include GP visits, ED visits, hospitalisations and ICU visits are projected to total €133 million between 2026 and 2031. Hospitalisations account for the largest share of the costs at €115.1m, with a further €2.7m being spent on those patients who are expected to require ICU care.
Dr Graham Love, Partner at Forvis Mazars, said: “RSV already represents a significant source of hospital demand among older adults in Ireland. This research indicates that the burden is likely to grow as the population ages, particularly among adults aged 80 and over, who experience higher rates of severe illness and longer hospital stays.
“The findings show that the impact of RSV is not limited to the number of hospital admissions. Its effect on bed occupancy, particularly during the winter respiratory virus season, will be an increasingly important consideration for the health service in the years ahead.”
Professor Rónán Collins, Consultant Geriatrician and National Stroke Lead, added: “For an older person, the effects of a serious respiratory infection can extend beyond the initial illness. Recovery may take time, particularly for those living with underlying conditions, and can affect mobility, independence and quality of life.
“As Ireland’s older population grows, prevention and early planning will have an important role in reducing severe outcomes and supporting people to remain active and independent.”
Today’s symposium ‘Well into the Future: Preparing Ireland’s Healthcare System for an Ageing Population’, sought to explore what needs to be done to prepare Ireland’s health system for a rapidly ageing population. Discussions examined the importance of prevention, healthcare workforce planning, sustainability, and supporting older adults to remain healthy, active and independent for longer.
Susan Miller, Country Lead and Managing Director at Pfizer Healthcare Ireland, said: "Ireland's ageing population is one of the most significant demographic shifts facing the health service. Understanding where future pressures may emerge can help support informed planning, prevention and healthy ageing strategies."
"This contributes to a broader conversation about how Ireland can prepare for the future, support healthy ageing, relieve seasonal pressures around bed capacity and ensure that healthcare services remain resilient and responsive to the needs of an ageing population."
Speaking from today’s event, Pat Kenny, said: “Growing older today means something very different than it did for previous generations. People are living longer, staying active for longer and continuing to make valuable contributions to their families, communities and workplaces.
“Ireland’s ageing population is something to celebrate, but it also highlights the importance of supporting people to stay healthy and independent as they age. By helping older adults remain active and engaged in society, we can ensure that longer lives are also healthier and more fulfilling lives.”
The report concludes that RSV is likely to become an increasingly important contributor to hospital demand and winter capacity pressures in Ireland. While the modelling is subject to uncertainty, its findings indicate that the future burden will be characterised not only by increasing hospitalisations, but also by growing demand for acute hospital capacity, with the greatest impact concentrated among adults aged 80 and over[1].
ENDS
Full report available on request.
For further information, please contact:
Emily Kelly, Pfizer Healthcare Ireland, 0868103783 / emily.kelly@pfizer.com
Notes to editors
The report explores three scenarios to reflect uncertainty around how much RSV is under-identified in older adults. The scenarios apply adjustment factors to reported data to estimate a plausible range of outcomes.
Low: 2.2x for medically attended cases; 1.2x for hospitalisations, ICU admissions and deaths
Central: 4.0x for medically attended cases; 2.5x for hospitalisations, ICU admissions and deaths
High: 7.9x for medically attended cases; 3.3x for hospitalisations, ICU admissions and deaths
References
- Forvis Mazars (2026) Modelling the future burden of respiratory syncytial virus (RSV) in older adults in Ireland. Report commissioned by Pfizer Healthcare Ireland. Dublin: Forvis Mazars.
- Health Protection Surveillance Centre (n.d.) Respiratory syncytial virus (RSV). Available at: https://www.hpsc.ie/a-z/respiratory/respiratorysyncytialvirus/ (Accessed: 9 September 2026).
- Centers for Disease Control and Prevention (2026) RSV in adults. Available at: https://www.cdc.gov/rsv/adults/index.html (Accessed: 9 September 2026).
- Kenmoe, S. and Nair, H. (2024) 'The disease burden of respiratory syncytial virus in older adults', Current Opinion in Infectious Diseases, 37(2), pp. 129–136.
- Health Protection Surveillance Centre (n.d.) RSV: Respiratory Virus Notification Data Hub. Available at: https://respiratoryvirus.hpsc.ie/pages/rsv (Accessed: 9 September 2026), as presented in Forvis Mazars (2026), Table 11, p. 30.
- Central Statistics Office (2025) Regional population projections 2023–2042. Dublin: Central Statistics Office. Available at: https://www.cso.ie/en/releasesandpublications/ep/p-rpp/regionalpopulationprojections2023-2042/ (Accessed: 9 September 2026), as applied in Forvis Mazars (2026), Tables 6 and 7, pp. 17–18.
- Forvis Mazars (2026), Table 11, p. 30 and Summary of Key Findings, p. 39.
- Forvis Mazars (2026), Table 15, p. 38 (2025) and p. 49 (2031 projections).
- Forvis Mazars (2026), p. 31.
- Forvis Mazars (2026), p. 12 and Table 24, p. 53.
- Forvis Mazars (2026), Table 29, p. 59.
- Footnote: Forvis Mazars (2026), pp. 15 and 65.
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