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Research
Maternal Pertussis Vaccination, Infant Immunization, and Risk of PertussisFollowing the introduction of jurisdictional maternal pertussis vaccination programs in Australia, we estimated maternal vaccine effectiveness (VE) and whether maternal pertussis vaccination modified the effectiveness of the first 3 primary doses of pertussis-containing vaccines.
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Influenza vaccination in Western Australian children: Exploring the health benefits and cost savings of increased vaccine coverage in childrenTo assess potential benefits and direct healthcare cost savings with expansion of an existing childhood influenza immunisation program, we developed a dynamic transmission model for the state of Western Australia, evaluating increasing coverage in children < 5 years and routinely immunising school-aged children.
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Implications of Non-Specific Effects for Testing, Approving, and Regulating VaccinesThe current framework for testing and regulating vaccines was established before the realization that vaccines, in addition to their effect against the vaccine-specific disease, may also have "non-specific effects" affecting the risk of unrelated diseases. Accumulating evidence from epidemiological studies shows that vaccines in some situations can affect all-cause mortality and morbidity in ways that are not explained by the prevention of the vaccine-targeted disease.
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Acellular Pertussis Vaccine Given in the Week After Birth Does Not Impair Antibody Responses to Later Childhood DosesA birth acellular pertussis vaccine may be a valuable alternative for immunity against infant pertussis when a pregnancy pertussis vaccine has not been administered. We assessed whether a birth dose may impair immunoglobulin G (IgG) responses to childhood pertussis boosters.
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4CMenB Breadth of Immune Response, Immunogenicity, and Safety: Results from a Phase 3 Randomized, Controlled, Observer Blind Study in Adolescents and Young AdultsMeningococcal serogroup B (MenB) strains are highly diverse. Breadth of immune response for the MenB vaccine, 4CMenB, administered at 0-2, 0-6, or 0-2-6 months, was demonstrated by endogenous complement-human serum bactericidal antibody (enc-hSBA) assay against an epidemiologically relevant panel of 110 MenB strains.
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Meningococcal serotype W septic arthritis: Case series in childrenThe epidemiology of invasive meningococcal disease has changed over the last decade and there has been an increase in cases caused by serogroup W135, particularly in Indigenous children. Extra‐meningeal and atypical presentations are associated with serogroup W and may delay diagnosis and therefore appropriate treatment. Public and clinician awareness are essential in facilitating effective new vaccine schedule implementation.
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Risk of adverse maternal and foetal outcomes associated with inactivated influenza vaccination in first trimester of pregnancyIn many countries, influenza vaccination is routinely recommended during any stage of pregnancy, yet uptake remains low, particularly in the first trimester. This is thought to be due to maternal concerns regarding vaccine safety. We evaluated the safety of influenza vaccination in the first trimester of pregnancy.
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Influenza disease and vaccination in children in AustraliaOver the past decade, multiple initiatives have been implemented to strengthen influenza vaccination programs in Australia, with an increasing focus on children. In this article, we review these changes, the events that prompted them, and how they have influenced influenza vaccine uptake in Australia.
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Weighing the Risks of Perimyocarditis With the Benefits of SARS-CoV-2 mRNA Vaccination in AdolescentsChristopher Blyth MBBS (Hons) DCH FRACP FRCPA PhD Centre Head, Wesfarmers Centre of Vaccines and Infectious Diseases; Co-Head, Infectious Diseases
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Characterising the Phenotypic Diversity of Antigen-Specific Memory B Cells Before and After VaccinationThe diversity of B cell subsets and their contribution to vaccine-induced immunity in humans are not well elucidated but hold important implications for rational vaccine design. Prior studies demonstrate that B cell subsets distinguished by immunoglobulin (Ig) isotype expression exhibit divergent activation-induced fates. Here, the antigen-specific B cell response to tetanus toxoid (TTd) booster vaccination was examined in healthy adults, using a dual-TTd tetramer staining flow cytometry protocol.