Publications by authors named "Josephine Lusk"

Background: Daily pre-exposure prophylaxis (PrEP) is effective in preventing HIV, but few long-term data are available on effectiveness and adherence in real-world settings. Here, we report trends in HIV incidence over 3 years in individuals at high risk who were prescribed PrEP in New South Wales (NSW), as well as adherence before the transition to subsidised PrEP.

Methods: Expanded PrEP Implementation in Communities-New South Wales (EPIC-NSW) was a pragmatic, prospective, single-arm, implementation study of daily, oral PrEP in 31 sites (sexual health clinics, general practices, and a hospital) in NSW, Australia.

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Article Synopsis
  • HIV pre-exposure prophylaxis (PrEP) is effective for reducing HIV incidence among men who have sex with men (MSM) but its broader population-level impacts were previously unclear.
  • The EPIC-NSW study recruited 3,700 high-risk gay and bisexual men in New South Wales to evaluate the effect of PrEP on HIV incidence and overall HIV diagnoses in the region.
  • Results showed a significant drop in HIV diagnoses among MSM after PrEP roll-out, with infections declining from 295 to 221, demonstrating a 25% relative risk reduction, highlighting the effectiveness of targeted PrEP distribution.
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Treatment with 1 G azithromycin was observed prospectively in 130 women with cervicitis (>30 polymorphonuclear leucocytes/high-powered field) enrolled in a cervicitis aetiology study of 558 women at three sexually transmitted infection clinics in Sydney, Australia. Two overlapping groups of women with cervicitis were considered: 'cervicitis group 1' (n = 116) excluded women with Trichomonas vaginalis and a subgroup of this, 'cervicitis group 2' (non-specific cervicitis) (n = 96) further excluded women with Neisseria gonorrhoea, Chlamydia trachomatis and Mycoplasma genitalium at enrolment. Testing for Chlamydia trachomatis, Mycoplasma genitalium and Trichomonas vaginalis was by PCR and Neisseria gonorrhoea by PCR and culture.

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Objectives: Studies examining cervicitis aetiology and prevalence lack comparability due to varying criteria for cervicitis. We aimed to outline cervicitis associations and suggest a best case definition.

Methods: A cross-sectional study of 558 women at three sexually transmitted infection clinics in Sydney, Australia, 2006-2010, examined pathogen and behavioural associations of cervicitis using three cervicitis definitions: 'microscopy' (>30 pmnl/hpf (polymorphonuclear leucocytes per high-powered field on cervical Gram stain)), 'cervical discharge' (yellow and/or mucopurulent cervical discharge) or 'micro+cervical discharge' (combined 'microscopy' and 'cervical discharge').

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Diagnosis of acute HIV is done by patient history and examination and testing of RNA, proviral DNA, and serology using fourth-generation antigen/antibody detection assays. We describe an HIV-1 primary infection with a second diagnostic window of 18 to 34 days on a fourth-generation immunoassay, which would have been missed using some current algorithms. Caution must be exercised when fourth-generation HIV-1 immunoassays are interpreted in isolation, and additional testing should be considered depending on patient risk assessment.

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We aim to characterize sexual behavioral aspects of heterosexual Neisseria gonorrhoea (NG) acquisition in two Sexually Transmitted Diseases clinics in Sydney, Australia, in 2008-2012. Of 167 NG cases, 102 were heterosexually acquired with a trend of increasing NG prevalence in heterosexuals from 1.1% (95% CI 0.

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Objectives: Trichomonas vaginalis (TV) has a low profile in urban sexually transmitted infection (STI) clinics in many developed countries. The objective of this study was to determine the true prevalence of TV in an Australian urban sexual health setting using sensitive molecular diagnostic techniques.

Methods: A cross-sectional study investigating the aetiology of cervicitis in women attending two urban sexual health clinics in Sydney, Australia, enrolled 356 consecutive eligible women from 2006 to 2008.

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Knowing the prevalence of potential etiologic agents of nongonococcal and nonchlamydial cervicitis is important for improving the efficacy of empirical treatments for this commonly encountered condition. We describe four multiplex PCRs (mPCRs), designated VDL05, VDL06, VDL07, and VDL09, which facilitate the detection of a wide range of agents either known to be or putatively associated with cervicitis, including cytomegalovirus (CMV), enterovirus (EV), Epstein-Barr virus (EBV), varicella-zoster virus (VZV), herpes simplex virus type 1 (HSV-1), and herpes simplex virus type 2 (HSV-2) (VDL05); Ureaplasma parvum, Ureaplasma urealyticum, Mycoplasma genitalium, and Mycoplasma hominis (VDL06); Chlamydia trachomatis, Trichomonas vaginalis, Treponema pallidum, and group B streptococci (VDL07); and adenovirus species A to E (VDL09). The mPCRs were used to test 233 cervical swabs from 175 women attending a sexual-health clinic in Sydney, Australia, during 2006 and 2007.

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An open question survey of general practitioners (GP) and hospital emergency department (ED) doctors revealed that the term 'FVU' (first void urine) used for urine chlamydia testing, is ambiguous, potentially leading to incorrect urine sample collection and barriers to effective screening. The results of this survey indicate that only 4.3% (95% confidence interval [CI] 0.

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Cervicitis: a review.

Curr Opin Infect Dis

February 2008

Purpose Of Review: Sexually transmitted infections impact significantly on global health. Whereas Chlamydia, Neisseria gonorrhoea and syphilis have been extensively examined, there remains a paucity of knowledge of nonchlamydial and nongonococcal cervicitis, an arguably more prevalent but poorly characterized condition with uncertain clinical implications. With increasing application of molecular diagnostic methods for the detection of sexually transmitted infections and a growing body of literature on cervicitis, a review is timely.

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