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Streptococcus pyogenes, also known as group A streptococcus (StrepA), is a bacterium that causes a range of human diseases, including pharyngitis, impetigo, invasive infections, and post-infection immune sequelae such as rheumatic fever and rheumatic heart disease. StrepA infections cause some of the highest burden of disease and death in mostly young populations in low-resource settings. Despite decades of effort, there is still no licensed StrepA vaccine, which if developed, could be a cost-effective way to reduce the incidence of disease.
The Kimberley has the highest rates of rheumatic heart disease (RHD) in Western Australia – but through the establishment of a new community-led, research-backed project known as END RHD Communities, there’s hope this will change.
Over 100 researchers and health professionals from around Australia have united in Broome this week to address the major health battles facing people living in the tropical north of the country.
When health organisations in the north-west of WA requested urgent action to address the region’s high rate of skin infections, Dr Asha Bowen answered the call.
Leading paediatrician, infectious diseases specialist and Executive Director of The Kids Research Institute Australia, Professor Jonathan Carapetis, has been recognised for his significant contribution towards medical research with the award of Member of the Order of Australia (AM).
The World Health Organisation resolution for global action to tackle rheumatic heart disease (RHD) will have significant implications for Australia, which has some of the highest rates of the disease in the world.
Rheumatic heart disease (RHD) is the most common form of acquired heart disease worldwide. In RHD, volume loading from mitral regurgitation leads to left ventricular (LV) dilatation, increased wall stress, and ultimately LV dysfunction. Improved understanding of LV dynamics may contribute to refined timing of intervention.
Regular intramuscular (i.m.) benzathine penicillin G (BPG) injections have been the cornerstone of rheumatic heart disease (RHD) secondary prophylaxis since the 1950s. Patient adherence to IM BPG is poor, largely due to pain, the need for regular injections every 3-4 weeks and health sector delivery challenges in resource-limited settings. There is an urgent need for new approaches for secondary prophylaxis, such as an implant which could provide sustained penicillin concentrations for more than 6 months.
Rheumatic heart disease (RHD) is responsible for a significant burden of cardiovascular morbidity and mortality, and remains the most common cause of acquired heart disease among children and young adults in low-income and middle-income countries. Additionally, the global COVID-19 pandemic has forced the emergency restructuring of many health systems, which has had a broad impact on health in general, including cardiovascular disease.
Described 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.