337 results match your criteria: "Kirby Institute for Infection and Immunity[Affiliation]"

Using a cluster-randomized trial design, we aimed to evaluate a complex intervention to increase uptake of human papillomavirus (HPV) vaccination in schools. The study was undertaken in high schools in Western Australia and South Australia between 2013 and 2015 with adolescents aged 12-13 years. Interventions included education, shared decision-making, and logistical strategies.

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Despite the widespread availability of effective prophylactic vaccines to prevent human papillomavirus (HPV) infection, HPV remains a major health burden. For health care systems in countries with the capacity for vaccine roll out, incomplete strategies result in citizens with naturally occurring infection, who are at an a posteriori risk of HPV-driven disease. Genital HPV infection is the most common sexually transmitted virus globally.

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Aboriginal and Torres Strait Islander (Aboriginal) young people seek information and access health services for their sexual health needs. This study examined Aboriginal young people's perspectives on sexual health services and sex education in Australia. Overall, 51 Aboriginal people aged 16-26 years were interviewed by peer researchers in Sydney, Australia in 2019-2020.

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Incidence of HIV and hepatitis C virus among people who inject drugs, and associations with age and sex or gender: a global systematic review and meta-analysis.

Lancet Gastroenterol Hepatol

June 2023

Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; National Institute for Health Research Health Protection Research Unit in Behavioural Science and Evaluation, University of Bristol, Bristol, UK.

Background: Measuring the incidence of HIV and hepatitis C virus (HCV) infection among people who inject drugs (PWID) is key to track progress towards elimination. We aimed to summarise global data on HIV and primary HCV incidence among PWID and associations with age and sex or gender.

Methods: In this systematic review and meta-analysis, we updated an existing database of HIV and HCV incidence studies among PWID by searching MEDLINE, Embase, and PsycINFO, capturing studies published between Jan 1, 2000, and Dec 12, 2022, with no language or study design restrictions.

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The effect of the Xpert HIV-1 Qual test on early infant diagnosis of HIV in Myanmar and Papua New Guinea: a pragmatic, cluster-randomised, stepped-wedge, open-label trial.

Lancet HIV

April 2023

Burnet Institute, Melbourne, VIC, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia; Centre for Sexual Health and HIV/AIDS Research (CeSHHAR), Harare, Zimbabwe; Liverpool School of Tropical Medicine, Liverpool, UK; International Centre for Re

Background: Despite proven benefits for child health, coverage of early infant diagnosis of HIV remains suboptimal in many settings. We aimed to assess the effect of a point-of-care early infant diagnosis test on time-to-results communication for infants vertically exposed to HIV.

Methods: This pragmatic, cluster-randomised, stepped-wedge, open-label trial assessed the effect of the Xpert HIV-1 Qual early infant diagnosis test (Cepheid) on time-to-results communication, compared with standard care laboratory-based testing of dried blood spots using PCR.

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Australia experienced widespread COVID-19 outbreaks from infection with the SARS-CoV-2 Delta variant between June 2021 and February 2022. A 17-nucleotide frameshift-inducing deletion in ORF7a rapidly became represented at the consensus level (Delta-ORF7a) in most Australian outbreak cases. Studies from early in the COVID-19 pandemic suggest that frameshift-inducing deletions in ORF7a do not persist for long in the population; therefore, Delta-ORF7a genomes should have disappeared early in the Australian outbreak.

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Background: Evidence regarding the characteristics of second primary cancer (SPC) in people living with HIV (PLWHIV) is limited.

Setting: We performed a national population-based data linkage study to determine the incidence and risk factors of SPC in PLWHIV in Australia between 1982 and 2012.

Methods: We conducted a probabilistic data linkage study to compare the incidence of SPC over time, defined using HIV treatment eras, for SPCs related to oncogenic viral infection in comparison with non-infection-related SPCs.

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Background: Evidence has accrued that influenza vaccination may be effective in preventing myocardial infarction (MI). However, vaccination rates in both adults and health care workers (HCW) are low, and hospitalisation is often a missed opportunity for vaccination. We hypothesised that knowledge, attitude and practices of health care workers regarding vaccination impacts vaccine uptake in hospitals.

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Background And Aims: Although the Netherlands, Canada and Australia were early adopters of harm reduction for people who inject drugs (PWID), their respective HIV and hepatitis C (HCV) epidemics differ. We measured the pooled effect of needle and syringe program (NSP) and opioid agonist therapy (OAT) participation on HIV and HCV incidence in these settings.

Design: For each cohort, we emulated the design and statistical analysis of a target trial using observational data.

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For people living with HIV, decisions about when, how and who to tell about their HIV status can involve navigating complex social, legal and health domains. With a focus on disclosure to broader social and familial networks, we explored the experiences of, and motivations for, HIV (non-)disclosure among recently diagnosed people living with HIV in Australia. Semi-structured interviews were conducted with 35 people diagnosed with HIV from 2016 onwards, of whom 25 completed follow-up interviews.

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Background: A field trial to evaluate a self-collect point-of-care HPV screen-and-treat (HPV S&T) program was implemented in two Well Women Clinics in Papua New Guinea (Papua New Guinea). Assessing the acceptability of a health intervention is a core element of evaluation. In this study, we examined women's acceptability of both self-collection and HPV S&T intervention in Papua New Guinea.

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T cell exhaustion is a hallmark of hepatitis C virus (HCV) infection and limits protective immunity in chronic viral infections and cancer. Limited knowledge exists of the initial viral and immune dynamics that characterise exhaustion in humans. We studied longitudinal blood samples from a unique cohort of individuals with primary infection using single-cell multi-omics to identify the functions and phenotypes of HCV-specific CD8 T cells.

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Article Synopsis
  • Microbial exposure during early development can have lasting impacts on an individual's health, particularly influencing the immune system.
  • This study reveals that early exposure to microbes affects the development of CD8+ T cells, leading to a stronger immune response against infections that invade cells.
  • The research shows that this immune system "education" occurs in the thymus during development, resulting in a more efficient immune response that persists into adulthood.
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Background: Female sex workers (FSWs) in Uganda are at high risk of HIV infection. Scaling up oral pre-exposure prophylaxis (PrEP) will reduce HIV incidence if high levels of adherence are maintained. This study evaluates PrEP adherence using clinic-based pill counts and self-reported measures, and factors associated with protective levels of adherence.

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Re: Letter to the Editor, Regarding the pre-proof of "Implementation of a successful infection prevention and control governance structure and capacity building strategies during COVID-19 pandemic-A brief report".

Am J Infect Control

November 2022

Emergency Department, Calvary Hospital 5 Mary Potter Cct, Bruce, ACT 2617, Australia; Emergency Medicine, Australian National University, Canberra, ACT 2600, Australia; Health & Design, University of Canberra, The Australian National University, Canberra, ACT 2600, Australia.

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SARS-CoV-2 RT-PCR to Screen for B.1.617.2 (Delta) Variant of Concern.

Diagnostics (Basel)

August 2022

The Queensland Paediatric Infectious Diseases (QPID) Research Group, Queensland Children's Hospital, Brisbane, QLD 4101, Australia.

The continuous transmission and evolution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has required that diagnostic capabilities be constantly monitored and updated as new variants emerge and prior variants disappear. Although whole genome sequencing provides full characterisation of SARS-CoV-2 directly from patient samples, this has limited throughput and requires sufficient resources. To enhance screening for circulating variants, we designed a rapid in-house RT-PCR assay to target a spike mutation (D950N) in Delta variants, which is not detected in the remaining variants of concern (VOCs).

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Background: Little research has explored the sexual and reproductive health (SRH) experience of female sex workers (FSW), including girls aged < 18 years who are commercially sexually exploited (CSE), in Papua New Guinea (PNG). This paper describes the SRH history of FSW and CSE girls and factors associated with their use of moderately or highly effective contraceptive methods in three settings in PNG.

Methods: From 2016 to 2017, respondent-driven sampling (RDS) surveys were conducted among FSW and CSE girls in Port Moresby, Lae, and Mt.

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Objective: To assess the prevalence, and factors associated with QTc interval prolongation, among 383 virologically suppressed people with HIV (PWH), without evidence of cardiovascular disease and active opportunistic infections in Thailand.

Design: Cross-sectional study.

Methods: Resting 12-lead digital ECGs were performed in 2019.

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Background: WHO recommends human papillomavirus (HPV) testing and same-day treatment for cervical screening in low-income and middle-income countries (LMICs); however, few published data exist on the validity of the strategy. We aimed to evaluate the clinical performance, treatment completion rates, adverse events profile, and acceptability of a fully integrated strategy, comprising point-of-care HPV DNA testing of self-collected specimens and same-day thermal ablation, for screening of cervical cancer in women in Papua New Guinea.

Methods: HPV-STAT was a large-scale, prospective, single-arm intervention trial conducted at two clinical sites in Papua New Guinea.

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Introduction: Aboriginal and Torres Strait Islander (Aboriginal) people compared with non-Aboriginal people in Australia have higher rates of chronic conditions. These conditions increase the risk of poorer health outcomes if infected with COVID-19, highlighting the importance of COVID-19 vaccination. This study examined what Aboriginal people think about COVID-19 vaccines, reasons why they were vaccinated or not vaccinated and factors involved in receiving COVID-19 vaccination.

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Aims: To measure mortality rates and factors associated with mortality risk among participants in the SuperMIX study, a prospective cohort study of people who inject drugs.

Design: A prospective observational study using self-reported behavioural and linked mortality data.

Setting: Melbourne, Australia.

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SARS-CoV-2 N-gene mutation leading to Xpert Xpress SARS-CoV-2 assay instability.

Pathology

June 2022

Department of Microbiology and Infectious Diseases, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.

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Objective: To examine associations between infection during pregnancy and adverse outcomes.

Methods: We did a systematic review of observational studies. We searched Medline, EMBASE, the Cochrane Library and CINAHL up to 11 August 2021.

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Mothers Who Use Drugs: Closing the Gaps in Harm Reduction Response Amidst the Dual Epidemics of Overdose and Violence in a Canadian Urban Setting.

Am J Public Health

April 2022

Jade Boyd and Thomas Kerr are with the Department of Medicine, University of British Columbia, Vancouver, BC, Canada. Lisa Maher is with the Kirby Institute for Infection and Immunity, Faculty of Medicine, University of New South Wales, Sydney, Australia. Tamar Austin and Jennifer Lavalley are with

To identify key gaps in overdose prevention interventions for mothers who use drugs and the paradoxical impact of institutional practices that can increase overdose risk in the context of punitive drug policies and a toxic drug supply. Semistructured interviews were conducted with 40 women accessing 2 women-only, low-barrier supervised consumption sites in Greater Vancouver, British Columbia, Canada, between 2017 and 2019. Our analysis drew on intersectional understandings of structural, everyday, and symbolic violence.

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