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Journals and Conferences
Mechanisms of protective immunity to Staphylococcus aureus infection in humans remain elusive. While the importance of cellular immunity has been shown in mice, T cell responses in humans have not been characterised. Using a murine model of recurrent S. aureus peritonitis, we demonstrated that prior exposure to S. aureus enhanced IFNγ responses upon… (More)
BACKGROUND Recurrent Clostridium difficile infection (CDI) represents a significant healthcare challenge. Patients may suffer multiple episodes of CDI with the index strain (relapse) or become infected by another strain acquired nosocomially (reinfection). AIM We aimed to characterize C. difficile isolates causing recurrent CDI at a tertiary referral… (More)
There is currently enormous interest in studying the role of the microbiome in health and disease. Microbiome's role is increasingly being applied to respiratory diseases, in particular COPD, asthma, cystic fibrosis and bronchiectasis. The changes in respiratory microbiomes that occur in these diseases and how they are modified by environmental challenges… (More)
Extensively drug-resistant (XDR) tuberculosis has now been described in >90 countries worldwide. The first case of XDR tuberculosis (XDR-TB) in New Zealand was recorded in 2010. We report the draft whole-genome sequence of the New Zealand isolate, NZXDR1, and describe a number of single-nucleotide polymorphisms that relate to drug resistance.
Whole-genome sequencing (WGS) of 41 patient and environmental sequence type 22 methicillin-resistant Staphylococcus aureus staphylococcal cassette chromosome mec type IV (ST22-MRSA-IV) isolates recovered over 6 weeks in one acute hospital ward in Dublin, Ireland, where ST22-MRSA IV is endemic, revealed 228 pairwise combinations differing by <40 single… (More)
We report here the draft whole-genome sequence of a drug-susceptible lineage 3 (East-African Indian) isolate of Mycobacterium tuberculosis from New Zealand (NZ3DS1) and compare it to a multidrug-resistant lineage 3 isolate (NZ3MDR1) with an identical 24-locus mycobacterial interspersed repetitive-unit-variable-number tandem-repeat profile.
The aim of this study was to determine whether alternative resistance mechanisms, other than mutation in the quinolone resistance-determining region (QRDR) of DNA gyrase, could confer fluoroquinolone resistance in Clostridium difficile. An in vitro-generated C. difficile mutant exhibiting increased fluoroquinolone resistance was isolated through antibiotic… (More)
Extensive drug resistance is an emerging threat to the control of tuberculosis (TB) worldwide, even in countries with low TB incidence. We report the draft whole-genome sequence of the first reported extensively drug-resistant TB (XDR-TB) strain isolated in Ireland (a low-incidence setting) and describe a number of single-nucleotide variations that… (More)
The Rangipo genotype of the Mycobacterium tuberculosis complex has been associated with a number of tuberculosis (TB) outbreaks in New Zealand. We report here the draft whole-genome sequence of a representative isolate of this strain.