Host response signature trends in persistent bacteraemia and metastatic infection due to and Gram-negative bacilli: a prospective multicentre observational study.

Background: A prompt diagnosis of bacteraemia and sepsis is essential. Markers to predict the risk of persistent bacteraemia and metastatic infection are lacking. SeptiCyte RAPID is a host response assay stratifying patients according to the risk of infectious vs sterile inflammation through a scoring system (SeptiScore).

Persistence of Detectable Pathogens by Culture-Independent Systems (T2 Magnetic Resonance) in Patients With Bloodstream Infection: Prognostic Role and Possible Clinical Implications.

Background: Persistent Staphylococcus aureus bacteremia is associated with metastatic infection and adverse outcomes, whereas gram-negative bacteremia is normally transient and shorter course therapy is increasingly advocated for affected patients. Whether the prolonged detection of pathogen DNA in blood by culture-independent systems could have prognostic value and guide management decisions is unknown.

Methods: We performed a multicenter, prospective, observational study on 102 patients with bloodstream infection (BSI) to compare time to bloodstream clearance according to T2 magnetic resonance and blood cultures over a 4-day follow-up.

Locally acquired lymphocytic choriomeningitis virus infections in South-East Queensland: an outbreak of a pathogen rarely described in Australia.

Lymphocytic choriomeningitis virus (LCMV) is a zoonotic virus that can cause clinically significant illnesses in humans. Although cases of LCMV infection are well described globally, and there is evidence that the virus is present in Australian rodent populations, there has been only one case of domestically acquired LCMV infection published previously. Here, we describe a cluster of LCMV infections in South-East Queensland identified in early 2021, and the diagnostic testing processes implemented.

Retrospective Review of Treponema pallidum PCR and Serology Results: Are Both Tests Necessary?

There has been a resurgence of syphilis diagnoses in Australia. We investigated whether our PCR test provides any additional diagnostic information over syphilis serology (chemiluminescence immunoassay [CMIA], particle agglutination [TPPA] assay, and the rapid plasma reagin [RPR] flocculation test). A retrospective audit of all PCR requests that came through our laboratory from January 2010 to June 2017 was conducted; data collected included age, gender, site of swab, and results from PCR, syphilis serology, and herpes simplex virus 1 (HSV-1) and HSV-2 PCRs.

A Retrospective Case-Series of Children With Bone and Joint Infection From Northern Australia.

Our clinical workload as infectious diseases pediatricians in northern Australia is dominated by complicated bone and joint infections in indigenous children. We reviewed the clinical presentation, microbiology, management, and outcomes of children presenting to Royal Darwin Hospital with bone and joint infections between 2010 and 2013, and aimed to compare severity and incidence with other populations worldwide.A retrospective audit was performed on children aged 0 to 18 years who were admitted to Royal Darwin Hospital between 1 January 2010 and 31 December 2013 with a bone and joint infection.

Combination of Vancomycin and β-Lactam Therapy for Methicillin-Resistant Staphylococcus aureus Bacteremia: A Pilot Multicenter Randomized Controlled Trial.

Background: In vitro laboratory and animal studies demonstrate a synergistic role for the combination of vancomycin and antistaphylococcal β-lactams for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Prospective clinical data are lacking.

Methods: In this open-label, multicenter, clinical trial, adults with MRSA bacteremia received vancomycin 1.

First reported Australian case of Cladophilophora arxii: features consistent with possible primary pulmonary chromoblastomycosis.

We describe the first case of possible pulmonary chromoblastomycosis in the absence of any identified cutaneous lesions in a relatively immunosuppressed man. The causative organism was Cladophialophora arxii, which is a rare pathogen that has only been described as causing human disease two times previously.