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Nationwide infant RSV immunisation could prevent 10,000 hospital admissions annually, according to the .

Australia has already recorded more than 47,000 RSV notifications in children aged under five years听鈥� representing 70% of all respiratory infection notifications in this age group听鈥� and more than 13,000 notifications in people aged 60 years and above this year.

鈥淎t the start of winter, we鈥檝e already recorded nearly two-thirds the total number of RSV cases reported in 2023.¹ This is well ahead of the normal curve,鈥� said Dr Lisa McHugh, infectious diseases and perinatal epidemiologist at the University of Queensland.

鈥淲e anticipate RSV infections to climb as temperatures drop. We should also expect a surge in presentations to hospitals among those not protected against severe RSV,鈥� she said.

Lower infant admissions in WA, Qld

The IFA said the positive news is that Western Australia and Queensland 鈥� the two states with all-infant RSV immunisation programs听鈥� are reporting lower rates of RSV-related hospitalisation in babies.

鈥満诹铣怨先和鴌sation data from Western Australia shows a low rate of infant admission due to RSV for this time of the year,鈥�² said Catherine Hughes AM, Founder and Director of the Immunisation Foundation of Australia.

To date, more than 10,000 infants in Western Australia have been immunised against severe RSV, with similar uptake in Queensland³听鈥� an outcome that is likely to prevent one hospital admission for every 25 babies immunised.⁴

鈥淭he message is clear听鈥� infant RSV immunisation keeps babies out of hospital,鈥� said Hughes, whose three-week-old daughter was hospitalised with severe RSV in 2016, 18 months after the death of her son Riley from whooping cough.

The Immunisation Foundation of Australia has calculated that nationwide access to and uptake of infant RSV immunisation could prevent around 10,000 infants aged under 12 months from being admitted to hospital each year.

Data collected during the European and the US winters showed an 80鈥�90% fall in childhood hospitalisations due to severe RSV following the rollout of infant RSV immunisations.^4,5

鈥淲ithout immunisation, we know that around 12,000 Australian babies are hospitalised with pneumonia and bronchiolitis caused by RSV each year, with one in four requiring intensive care,鈥�⁶ she said.

McHugh and Hughes are calling on all Australians to join them in declaring as part of RSV Awareness Week, held from 2鈥�8 June.

A new era of RSV protection

Hughes warned that without national RSV immunisation programs for infants and the elderly, Australia would fail to realise the potential of a new era of RSV protection.

鈥淚t鈥檚 wonderful that for the first time we can protect babies and the elderly from RSV, but it鈥檚 not sustainable to have infant immunisation programs in some states and not others, nor to ask older Australians to pay hundreds of dollars each year for RSV protection,鈥� she said.

The Immunisation Foundation of Australia has made submissions to the Pharmaceutical Benefits Advisory Committee which will advise the federal health minister on the funding of:

• an antibody therapy for the prevention of RSV-related lower respiratory tract disease in infants entering their first RSV season, and for children up to 24 months of age who remain vulnerable to severe RSV disease through their second RSV season;
• a vaccine for pregnant women between 24 and 36 weeks of gestation for the prevention of lower respiratory tract disease caused by RSV in infants from birth through 6 months age;
• a vaccine for Australians aged 60 years and over to protect against RSV-related lower respiratory tract disease.
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<sup>1. Department of Health and Age Care. National Notifiable Disease Surveillance System. 28 May 2024. Available at https://nindss.health.gov.au/pbi-dashboard/
2. PathWest Laboratory Medicine WA. Paediatric Respiratory Pathogen Report, Week 20, 13th May 鈥� 19th May 2024. Available at www.health.wa.gov.au/Articles/F_I/Infectious-disease-data/Paediatric-Respiratory-Pathogen-reports
3. Data sourced from Immunisation Foundation of Australia, WA Health and QLD Health. 28 May 2024.
4. Ares-G贸mez S, et al. Effectiveness and impact of universal prophylaxis with nirsevimab in infants against hospitalisation for respiratory syncytial virus in Galicia, Spain: initial results of a population-based longitudinal study. Lancet. 2024. DOI: https://doi.org/10.1016/S1473-3099(24)00215-9.
5. U.S. Centers for Disease Control and Prevention. Early Estimate of Nirsevimab Effectiveness for Prevention of Respiratory Syncytial Virus鈥揂ssociated 黑料吃瓜群网ization Among Infants Entering Their First Respiratory Syncytial Virus Season 鈥� New Vaccine Surveillance Network, October 2023鈥揊ebruary 2024. Morbidity and Mortality Weekly Report (MMWR). 2024; 73(9);209鈥�214.
6. Evohealth. Time to Act 鈥� Protecting our children from RSV. 2023. Available at: https://www.evohealth.com.au/insights/time-to-act-protecting-our-children-from-rsv/</sup>

Image caption: iStock.com/Peter Hansen