Reports and Findings
Research
Standardization of Epidemiological Surveillance of Group A Streptococcal ImpetigoImpetigo is a highly contagious bacterial infection of the superficial layer of skin. Impetigo is caused by group A Streptococcus (Strep A) and Staphylococcus aureus, alone or in combination, with the former predominating in many tropical climates. Strep A impetigo occurs mainly in early childhood, and the burden varies worldwide. It is an acute, self-limited disease, but many children experience frequent recurrences that make it a chronic illness in some endemic settings.
Research
Study protocol for controlled human infection for penicillin G against Streptococcus pyogenes: a double-blinded, placebo-controlled, randomised trial to determine the minimum concentration required to prevent experimental pharyngitis (the CHIPS trial)Regular intramuscular benzathine penicillin G injections have been the cornerstone of rheumatic heart disease (RHD) secondary prophylaxis since the 1950s. As the pharmacological correlate of protection remains unknown, it is difficult to recommend changes to this established regimen. Determining the minimum effective penicillin exposure required to prevent Streptococcus pyogenes infection will accelerate development of new long-acting penicillins for RHD prevention as well as inform opportunities to improve existing regimens. The CHIPS trial will address this knowledge gap by directly testing protection afforded by different steady state plasma concentrations of penicillin in an established model of experimental human S. pyogenes pharyngitis.
Research
Host-dependent resistance of Group A Streptococcus to sulfamethoxazole mediated by a horizontally-acquired reduced folate transporterDescribed antimicrobial resistance mechanisms enable bacteria to avoid the direct effects of antibiotics and can be monitored by in vitro susceptibility testing and genetic methods. Here we describe a mechanism of sulfamethoxazole resistance that requires a host metabolite for activity.
Research
Improving primary care for Aboriginal and Torres Strait Islander people with rheumatic heart disease: What can I do?Acute rheumatic fever and rheumatic heart disease disproportionately affect Aboriginal and Torres Strait Islander people in Australia, with devastating impacts on morbidity, mortality and community wellbeing. Research suggests that general practitioners and primary care staff perceive insurmountable barriers to improving clinical outcomes, including the need for systemic change outside their scope of practice.
Research
Starting the SToP trial: Lessons from a collaborative recruitment approachRecruitment in research can be challenging in Australian Aboriginal contexts. We aimed to evaluate the SToP (See, Treat, Prevent skin infections) trial recruitment approach for Aboriginal families to identify barriers and facilitators and understand the utility of the visual resource used.
Research
Population pharmacokinetic study of benzathine penicillin G administration in Indigenous children and young adults with rheumatic heart disease in the Northern Territory, AustraliaBenzathine penicillin G is the cornerstone of secondary prophylaxis to prevent Streptococcus pyogenes infections, which precede acute rheumatic fever.
Research
A Systematic Framework for Prioritizing Burden of Disease Data Required for Vaccine Development and Implementation: The Case for Group A Streptococcal DiseasesVaccine development and implementation decisions need to be guided by accurate and robust burden of disease data. We developed an innovative systematic framework outlining the properties of such data that are needed to advance vaccine development and evaluation, and prioritize research and surveillance activities.
Research
Standardization of epidemiological surveillance of rheumatic heart diseaseJonathan Judy Jeffrey Hannah Asha Carapetis AM Katzenellenbogen Cannon Moore Bowen AM MBBS FRACP FAFPHM PhD FAHMS BSc (Occ Ther) BSc Hons (Epidemiol) MSc PhD BSc(Hons) BBus PhD OAM BSc (Hons) GradDipClinEpi PhD BA MBBS DCH FRACP PhD GAICD FAHMS OAM
Research
Standardization of epidemiological surveillance of group A Streptococcal cellulitisJonathan Jeffrey Asha Janessa Jessica Hannah Laurens Carapetis AM Cannon Bowen Pickering Daw Moore Manning AM MBBS FRACP FAFPHM PhD FAHMS BSc(Hons) BBus PhD BA MBBS DCH FRACP PhD GAICD FAHMS OAM BSc PhD BSc (Hons) OAM BSc (Hons) GradDipClinEpi PhD
Research
Evaluation of a Community-Led Program for Primordial and Primary Prevention of Rheumatic Fever in Remote Northern AustraliaEnvironmental factors including household crowding and inadequate washing facilities underpin recurrent streptococcal infections in childhood that cause acute rheumatic fever (ARF) and subsequent rheumatic heart disease (RHD).