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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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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.
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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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Cellulitis in children: A retrospective single centre study from AustraliaTo characterise the epidemiology, clinical features and treatment of paediatric cellulitis. Methods A retrospective study of children presenting to a paediatric tertiary hospital in Western Australia, Australia in 2018.
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Modes of transmission and attack rates of group A Streptococcal infection: a protocol for a systematic review and meta-analysisSummarising the current knowledge of Strep A transmission to humans will address gaps in the evidence and inform prevention and control strategies. The objective of this study is to evaluate the modes of transmission and attack rates of group A streptococcal infection in human populations.
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Secondary Antibiotic Prophylaxis for Latent Rheumatic Heart DiseaseRheumatic heart disease affects more than 40.5 million people worldwide and results in 306,000 deaths annually. Echocardiographic screening detects rheumatic heart disease at an early, latent stage. Whether secondary antibiotic prophylaxis is effective in preventing progression of latent rheumatic heart disease is unknown.
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Perinatal risk factors associated with skin infection hospitalisation in Western Australian Aboriginal and Non-Aboriginal childrenWe have quantified the relative influence of perinatal risk factors associated with skin infection hospitalisations in WA children
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Availability and administration of benzathine penicillin G for the prevention of rheumatic fever in Africa: Report of the Working Group on PenicillinBenzathine penicillin G availability should be addressed and African health workers’ knowledge and practices need to be augmented
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A population pharmacokinetic study of benzathine benzylpenicillin G administration in children and adolescents with rheumatic heart diseaseFew children and adolescents receiving BPG as secondary prophylaxis will achieve concentrations >0.02 mg/L for the majority of the time between injections
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Rheumatic heart disease in pregnancy: Profile of women admitted to a Western Australian tertiary obstetric hospitalThis retrospective study assessed maternal and perinatal outcomes for women with rheumatic heart disease admitted to the largest tertiary obstetric hospital