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Transmission potential of Streptococcus pyogenes during a controlled human infection trial of pharyngitis

Controlled human infection (CHI) models can provide insights into transmission of pathogens such as Streptococcus pyogenes (Strep A). As part of the Controlled Human Infection with Penicillin for Streptococcus pyogenes (CHIPS) trial, we explored the potential for transmission among participants deliberately infected with the Strep A emm75 strain.

Systematic Review of Household Transmission of Strep A: A Potential Site for Prevention That Has Eluded Attention

Although 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. 

Missed Opportunities for Diagnosing Acute Rheumatic Fever

We have read with interest the new publication by Rouhiainen and colleagues on missed opportunities for preventing or diagnosing acute rheumatic fever (ARF).

Development and Validation of a Stability-Indicating RP-HPLC Method for Edaravone Quantification

Edaravone is used to treat motor neurone disease (MND) by slowing disease progression and prolonging survival time. Currently, it is available as an IV infusion (Radicava®, Jersey City, NJ, USA) and an oral liquid suspension (Radicava ORS®, Jersey City, NJ, USA). Development of novel edaravone formulations is still an active field of research that requires a validated stability-indicating assay capable of providing specific, precise, and accurate quantification of edaravone content. 

Population pharmacokinetics of penicillin G: insights into increased clearance at low concentrations to guide development of improved long-acting formulations for syphilis

Although benzylpenicillin (penicillin G) is listed by the World Health Organization as an Essential Medicine, dose optimization is a persistent challenge, especially for long-acting intramuscular formulations. Maintaining sustained antibiotic exposure at target concentrations is crucial for secondary chemoprophylaxis of rheumatic heart disease and treatment of syphilis. 

Healthy skin for children and young people with skin of colour starts with clinician knowledge and recognition

Skin conditions most frequently encountered in paediatric practice include infections, infestations, atopic dermatitis, and acne. Skin of colour refers to skin with increased melanin and darker pigmentation, and reflects global racial and ethnic diversity. 

Strategies to Improve Research Participation By Older People With Cognitive Impairment: A Systematic Review

Older people with cognitive impairment are unrepresented in clinical research. Our objective was to review evidence for strategies to support their research inclusion and participation.

Bifidobacteria support optimal infant vaccine responses

Accumulating evidence indicates that antibiotic exposure may lead to impaired vaccine responses, however the mechanisms underlying this association remain poorly understood. Here we prospectively followed 191 healthy, vaginally born, term infants from birth to 15 months, using a systems vaccinology approach to assess the effects of antibiotic exposure on immune responses to vaccination.

Optimisation of the sampling method for skin microbiome studies in healthy children: a pilot cohort study

Recent interest in the diverse ecosystem of bacteria, fungi and viruses that make up the skin microbiome has led to numerous studies investigating the skin microbiome in healthy skin and in dermatological conditions. However, skin microbiome analysis is challenging due to relatively low numbers of skin microorganisms compared to mucosal sites, such as the respiratory or gastrointestinal tracts. Microbiome results are heavily influenced by sampling methods.

Skin health of urban-living Aboriginal children attending a primary care Aboriginal Community Controlled Health Organisation clinic

Despite increasing urbanisation, little is known about skin health for urban-living Aboriginal children and young people (CYP, aged <18 years). This study aimed to investigate the primary care burden and clinical characteristics of skin conditions in this cohort.