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Research
Streptococcus pyogenes pharyngitis elicits diverse antibody responses to key vaccine antigens influenced by the imprint of past infectionsKnowledge gaps regarding human immunity to Streptococcus pyogenes have impeded vaccine development. To address these gaps and evaluate vaccine candidates, we established a human challenge model of S. pyogenes pharyngitis. Here, we analyse antibody responses in serum and saliva against 19 antigens to identify characteristics distinguishing 19 participants who developed pharyngitis and 6 who did not.
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Overlapping Streptococcus pyogenes and Streptococcus dysgalactiae subspecies equisimilis household transmission and mobile genetic element exchangeStreptococcus dysgalactiae subspecies equisimilis and Streptococcus pyogenes share skin and throat niches with extensive genomic homology and horizontal gene transfer possibly underlying shared disease phenotypes.
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Systematic Review of Household Transmission of Strep A: A Potential Site for Prevention That Has Eluded AttentionAlthough Streptococcus pyogenes (Strep A) is the sixth-most common infectious disease globally, its transmission within the household remains an understudied driver of infection. We undertook a systematic review to better understand the transmission of Strep A among people within the home, while highlighting opportunities for prevention.
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Reach: to stop rheumatic heart diseaseReach works to promote the health of vulnerable populations by providing technical support to local, regional and global efforts to prevent and control rheumatic fever and rheumatic heart disease (RF/RHD).
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The END RHD CRE: Developing an end game for rheumatic heart disease in AustraliaThe END RHD CRE will undertake a number of projects across several disciplines of research including epidemiology, biomedical sciences; implementation and translation; and understanding the RHD community with a special focus on documenting the experiences of those living with the disease.
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Burden of rheumatic heart disease (RHD) and impact of prevention strategies: comprehensive evidence to drive the RHD EndgameThis project will use a multi-jurisdictional linked RHD dataset to establish a baseline burden of RHD in Australia to allow for monitoring the impact of burden over time, and to form the basis of clearly defined targets for the END RHD CRE Endgame Strategy.
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Research priorities for the primordial prevention of acute rheumatic fever and rheumatic heart disease by modifying the social determinants of healthThe social determinants of health such as access to income, education, housing and healthcare, strongly shape the occurrence of acute rheumatic fever and rheumatic heart disease at the household, community and national levels.
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Excess Mortality Among People With Rheumatic Heart Disease in AustraliaJonathan Carapetis AM AM MBBS FRACP FAFPHM PhD FAHMS Executive Director; Co-Head, Strep A Translation; Co-Founder of REACH 08 6319 1000 contact@
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Tertiary prevention and treatment of rheumatic heart disease: a National Heart, Lung, and Blood Institute working group summaryAlthough entirely preventable, rheumatic heart disease, a disease of poverty and social disadvantage resulting in high morbidity and mortality, remains an ever-present burden in low-income and middle-income countries and rural, remote, marginalised and disenfranchised populations within high-income countries.
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Modeling the potential health impact of prospective Strep A vaccinesThe World Health Organization published the preferred product characteristics for a Group A Streptococcus (Strep A) vaccine in 2018. Based on these parameters for the age of vaccination, vaccine efficacy, duration of protection from vaccine-derived immunity, and vaccination coverage, we developed a static cohort model to estimate the projected health impact of Strep A vaccination at the global, regional, and national levels and by country-income category.