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32 result(s) for 'author#Heather J. Zar' within BMC
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Citation: BMC Proceedings 2022 16(Suppl 2):2
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Flexible modelling of risk factors on the incidence of pneumonia in young children in South Africa using piece-wise exponential additive mixed modelling
Recurrent episodes of pneumonia are frequently modeled using extensions of the Cox proportional hazards model with the underlying assumption of time-constant relative risks measured by the hazard ratio. We aim...
Citation: BMC Medical Research Methodology 2021 21:17 -
Testing the regulatory framework in South Africa – a single-blind randomized pilot trial of commercial probiotic supplementation to standard therapy in women with bacterial vaginosis
Bacterial vaginosis (BV) increases HIV risk and adverse reproductive outcomes. Standard-of-care (SOC) for BV are antibiotics; however, cure rates are low. Probiotics for vaginal health may be useful in improvi...
Citation: BMC Infectious Diseases 2020 20:491 -
WAO International Scientific Conference (WISC 2016) Abstracts
Citation: World Allergy Organization Journal 2017 10(Suppl 1):25 -
Abstracts from the 6th Respiratory Effectiveness Group Summit, 18–20 March, 2021
Citation: Respiratory Research 2022 22(Suppl 1):324 -
Proceedings of the 25th European Paediatric Rheumatology Congress (PReS 2018)
Citation: Pediatric Rheumatology 2018 16(Suppl 2):52 -
Abstracts from the 2018 Respiratory Effectiveness Group Summit
Citation: RESPIRATORY RESEARCH 2018 19(Suppl 1):252 -
High incidence of antimicrobial resistant organisms including extended spectrum beta-lactamase producing Enterobacteriaceae and methicillin-resistant Staphylococcus aureusin nasopharyngeal and blood isolates of HIV-infected children from Cape Town, South Africa
There is little information on nasopharyngeal (NP) flora or bacteremia in HIV-infected children. Our aim was to describe the organisms and antimicrobial resistance patterns in children enrolled in a prospectiv...
Citation: BMC Infectious Diseases 2008 8:40 -
Outcome of HIV-exposed uninfected children undergoing surgery
HIV-exposed uninfected (HIVe) children are a rapidly growing population that may be at an increased risk of illness compared to HIV-unexposed children (HIVn). The aim of this study was to investigate the morbi...
Citation: BMC Pediatrics 2011 11:69 -
Correction to: Human microbiota research in Africa: a systematic review reveals gaps and priorities for future research
An amendment to this paper has been published and can be accessed via the original article.
Citation: Microbiome 2022 10:10 -
Maternal participant experience in a South African birth cohort study enrolling healthy pregnant women and their infants
Critical to conducting high quality research is the ability to attract and retain participants, especially for longitudinal studies. Understanding participant experiences and motivators or barriers to particip...
Citation: Philosophy, Ethics, and Humanities in Medicine 2016 11:3 -
Correction to: Is diet partly responsible for differences in COVID-19 death rates between and within countries?
An amendment to this paper has been published and can be accessed via the original article.
Citation: Clinical and Translational Allergy 2020 10:44 -
The interplay between environmental exposures and COVID-19 risks in the health of children
An unusual feature of SARS-Cov-2 infection and the COVID-19 pandemic is that children are less severely affected than adults. This is especially paradoxical given the epidemiological links between poor air qua...
Citation: Environmental Health 2021 20:34 -
Lung function in HIV-infected children and adolescents
The advent of antiretroviral therapy has led to the improved survival of human immunodeficiency virus (HIV)-infected children to adulthood and to HIV becoming a chronic disease in older children and adolescent...
Citation: Pneumonia 2018 10:6 -
Human microbiota research in Africa: a systematic review reveals gaps and priorities for future research
The role of the human microbiome in health and disease is an emerging and important area of research; however, there is a concern that African populations are under-represented in human microbiome studies. We,...
Citation: Microbiome 2021 9:241 -
Reversion and conversion of Mycobacterium tuberculosis IFN-γ ELISpot results during anti-tuberculous treatment in HIV-infected children
Recent interest has focused on the potential use of serial interferon gamma (IFN-γ) release assay (IGRA) measurements to assess the response to anti-tuberculous (TB) treatment. The kinetics of IFN-γ responses to
Citation: BMC Infectious Diseases 2010 10:138 -
Adherence to isoniazid prophylaxis among HIV-infected children: a randomized controlled trial comparing two dosing schedules
Tuberculosis contributes significantly to morbidity and mortality among HIV-infected children in sub-Saharan Africa. Isoniazid prophylaxis can reduce tuberculosis incidence in this population. However, for the...
Citation: BMC Medicine 2009 7:67 -
Optimizing 16S rRNA gene profile analysis from low biomass nasopharyngeal and induced sputum specimens
Careful consideration of experimental artefacts is required in order to successfully apply high-throughput 16S ribosomal ribonucleic acid (rRNA) gene sequencing technology. Here we introduce experimental desig...
Citation: BMC Microbiology 2020 20:113 -
Human rhinovirus infection in young African children with acute wheezing
Infections caused by human rhinoviruses (HRVs) are important triggers of wheezing in young children. Wheezy illness has increasingly been recognised as an important cause of morbidity in African children, but ...
Citation: BMC Infectious Diseases 2011 11:65 -
Improved detection of Pneumocystis jirovecii in upper and lower respiratory tract specimens from children with suspected pneumocystis pneumonia using real-time PCR: a prospective study
Pneumocystis pneumonia (PCP) is a major cause of hospitalization and mortality in HIV-infected African children. Microbiologic diagnosis relies predominantly on silver or immunofluorescent staining of a lower re...
Citation: BMC Infectious Diseases 2011 11:329