Projects per year
Abstract
Background Pneumococcal conjugate vaccines (PCV) reduced the risk of respiratory syncytial virus (RSV) in a randomized clinical trial. We aimed to assess the real-world effectiveness of PCV on RSV-hospitalizations among Western Australian infants. Methods We conducted a population-based cohort study of births during 2000-2012, using probabilistically linked individual-level immunization, hospitalization, respiratory microbiology testing, and perinatal data. We performed Cox proportional hazard models with time-varying exposure (receipt of infant PCV doses) against the first RSV-confirmed hospitalization 0-12 months adjusted for perinatal and sociodemographic factors. Results From 360 994 children, 3-dose PCV coverage in Aboriginal infants ranged from 29% to 51% in 2001-2004 when PCV was funded for Aboriginal children only. Following universal funding in 2005, coverage increased to 85% for Aboriginal and 73% for non-Aboriginal infants. RSV-hospitalization rates were highest in young infants aged 0-5 months (22.5/1000 child-years) and >2 times higher in Aboriginal infants than in non-Aboriginal infants. Receipt of >= 3 PCV doses in the universal funded period was associated with a 30% reduction in RSV-hospitalization in Aboriginal infants (adjusted hazard ratio, aHR 0.70 [95% confidence interval, CI 0.46-1.06]) and 21% reduction in non-Aboriginal infants (aHR 0.79 [95% CI 0.63-0.99]) compared with unvaccinated infants. Conclusions Prior to the introduction of RSV vaccines, our study suggests that universal childhood PCV vaccination may result in a reduction in severe RSV infections in children and may be important for countries that are yet to consider PCV programs.
Original language | English |
---|---|
Article number | ofad199 |
Number of pages | 9 |
Journal | Open Forum Infectious Diseases |
Volume | 10 |
Issue number | 4 |
DOIs | |
Publication status | Published - 19 Apr 2023 |
Fingerprint
Dive into the research topics of 'Pneumococcal Conjugate Vaccines Are Protective Against Respiratory Syncytial Virus Hospitalizations in Infants: A Population-Based Observational Study'. Together they form a unique fingerprint.-
Paediatric Acute Respiratory Infection Management & Prevention: Platforms for the Future
Blyth, C. (Investigator 01)
NHMRC National Health and Medical Research Council
1/01/19 → 31/12/25
Project: Research
-
Evaluation and optimisation of paediatric vaccination programs in Australia and the region
Blyth, C. (Investigator 01)
NHMRC National Health and Medical Research Council
1/01/16 → 31/12/19
Project: Research
-
Vaccination Timeliness in Aboriginal and non-Aboriginal Infants: Risk Factors for Delayed Vaccination and Impact on Disease Burden - A Record Linkage Study
Gidding, H. (Investigator 01), Moore, H. (Investigator 02), McIntyre, P. (Investigator 03), De Klerk, N. (Investigator 04), Liu, B. (Investigator 05), Blyth, C. (Investigator 06) & Snelling, T. (Investigator 07)
NHMRC National Health and Medical Research Council
1/01/15 → 31/12/17
Project: Research