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An update on the burden of group A streptococcal diseases in Australia and vaccine development

Asha Jeffrey Bowen Cannon BA MBBS DCH FRACP PhD GAICD FAHMS OAM BSc(Hons) BBus PhD Head, Healthy Skin and ARF Prevention Health Economist

Increasing incidence of invasive group A streptococcal disease in Western Australia, particularly among Indigenous people

The incidence of invasive GAS disease in WA increased between 2000 and 2018, particularly among Indigenous Australians. Mandatory notification of invasive GAS disease would therefore be appropriate. The social determinants of differences in incidence should be addressed, and other relevant host, pathogen, and health system factors investigated.

Formative evaluation of a community-based approach to reduce the incidence of Strep A infections and acute rheumatic fever

We explore the acceptability of a novel, outreached-based approach to improve primary and primordial prevention of Strep A skin sores, sore throats and acute rheumatic fever in remote Aboriginal communities. A comprehensive prevention program delivered by trained Aboriginal Community Workers was evaluated using approximately fortnightly household surveys about health and housing and clinical records.

Revisiting the inoculum effect for Streptococcus pyogenes with a hollow fibre infection model

Severe, invasive Streptococcus pyogenes (Strep A) infections result in greater than 500,000 deaths annually. First line treatment for such infections is benzylpenicillin, often with the addition of clindamycin, but treatment failure can occur with this regimen. This failure has been partially attributed to the inoculum effect, which presents as reduced antibiotic susceptibility during high bacterial density and plateau-phase growth.

The incidence of sore throat and group A streptococcal pharyngitis in children at high risk of developing acute rheumatic fever: A systematic review and meta-analysis

Group A streptococcal (GAS) pharyngitis has traditionally been considered the sole precursor of acute rheumatic fever (ARF). Evidence from Australia, however, suggests that GAS skin infections may contribute to the pathogenesis of ARF.

Active Case Finding for Rheumatic Fever in an Endemic Country

Asha Jonathan Bowen Carapetis AM BA MBBS DCH FRACP PhD GAICD FAHMS OAM AM MBBS FRACP FAFPHM PhD FAHMS Head, Healthy Skin and ARF Prevention Executive

Clinical description and outcomes of Australian children with invasive group a streptococcal disease

Invasive group A streptococcal infection in Australian children is frequently severe and has a high long-term morbidity burden

Recovery of culturable Streptococcus pyogenes from swabs stored at different temperatures

Improving our understanding of superficial Streptococcus pyogenes (Strep A) carriage and transmission necessitates robust sampling methods. Here, we compared the effect of storing swab samples in fridge (+4°C) and freezer (-20°C) conditions on the recovery of laboratory-cultured S. pyogenes.

Strep A: challenges, opportunities, vaccine-based solutions and economics

Streptococcus pyogenes (Strep A) is a leading cause of morbidity and mortality across the globe, annually causing hundreds of millions of cases of disease.

State transitions across the Strep A disease spectrum: scoping review and evidence gaps

The spectrum of diseases caused by Streptococcus pyogenes (Strep A) ranges from superficial to serious life-threatening invasive infections. We conducted a scoping review of published articles between 1980 and 2021 to synthesize evidence of state transitions across the Strep A disease spectrum. We identified 175 articles reporting 262 distinct observations of Strep A disease state transitions.