has been associated with infections of the genitourinary tract, and prevalence is secondary to The clinical observation of increasing treatment failure indicating antibiotic resistance, especially in cases of recurrent urethritis, has been confirmed by molecular testing. Mutations in the 23S rRNA gene can cause macrolide resistance, and topoisomerase/gyrase mutations can cause fluoroquinolone resistance. In this study, 115 DNA-positive samples were analyzed. Eighty-nine (77.4%) samples had a 23S rRNA mutation present, and 26 (22.6%) were wild type (no resistance mutation). Fluoroquinolone mutation screening was performed on 86 (74.8%) of the 115 samples, of which 20 (23.3%) samples had a mutation or mutations associated with increased resistance. This study shows the increasing antibiotic resistance in New Zealand and the need for appropriate guidelines to treat at-risk patients.
This unlinked anonymous study aimed at determining the prevalence of HIV among sexual health clinic attenders having blood samples taken for syphilis and/or hepatitis B serology in six major New Zealand cities over a 12-month period in 2005-2006. Overall, seroprevalence was five per 1000 (47/9439). Among men who have sex with men (MSM), the overall prevalence and that of previously undiagnosed HIV were 44.1 and 20.1 per 1000, respectively. In heterosexual men, the overall prevalence was 1.2 per 1000 and in women 1.4 per 1000. HIV remains to be concentrated among homosexual and bisexual men. Comparison with a previous survey in 1996-1997 suggests an increase in the prevalence of undiagnosed HIV among MSM and also an increase in the number of MSM attending sexual health clinics. The low prevalence of HIV among heterosexuals suggests no extensive spread into the groups identified at risk of other sexually transmitted infections.
Social stigma and taboo limit current understanding of sexual behaviours and epidemiology of sexually transmitted infections (STIs) in clients of commercial sex workers/prostitutes. We designed a study to determine risk behaviours and prevalence of STIs in a group of sexual health clinic attending male clients of female commercial sex workers (FCSWs) in Sydney, and to compare these characteristics with men who denied any commercial sexual contact. Eight hundred and ninety cases and 2670 controls were included. Clients of FCSWs were older, more likely to be married and of non-English speaking background than controls. Clients had more sexual partners but reported more condom usage than controls. Prevalence of STIs at presentation was lower in clients than controls but clients were more likely to report STIs in the past than controls. HIV prevalence was low in both groups.
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