Παρασκευή 16 Αυγούστου 2019

Self-Reported Extragenital Chlamydia and Gonorrhea Testing in the Past 12 Months Among Men Who Have Sex with Men in the United States—American Men's Internet Survey, 2017
imageBackground Current guidelines recommend that sexually active men who have sex with men (MSM) be screened at least annually for bacterial sexually transmitted infections (STIs) at sites of sexual contact regardless of condom use. Extragenital (rectal and pharyngeal) STI are common in MSM and associated with an increased risk of human immunodeficiency virus. We describe the prevalence of MSM who reported any STI test and an extragenital STI test in the past 12 months (p12m) in the United States. Methods Data were obtained from the 2017 American Men's Internet Survey, an annual cross-sectional behavioral internet survey of MSM in the United States. We examined the prevalence of MSM who reported any STI test and an extragenital STI test in the p12m and compared the prevalence across demographic, clinical, and behavioral factors. Results Of 10,049 sexually active MSM who participated in American Men's Internet Survey 2017, 42% reported any STI test in the p12m and 16% reported an extragenital (rectal or pharyngeal) STI test in the p12m. Among those who reported getting an extragenital STI test in the p12m, 19% reported providing a throat swab only, 14% reported providing a rectal swab only, and 68% reported providing both a rectal and throat swab for STI testing. Conclusions In a large sample of internet-using MSM in the United States, levels of STI screening were suboptimal, with fewer than half (42%) of MSM reporting any STI test and even fewer reporting an extragenital STI test in the p12m. Increased efforts are needed to ensure annual STI screening guidelines among MSM are implemented.
Spatial-Temporal Epidemiology of the Syphilis Epidemic in Relation to Neighborhood-Level Structural Factors in British Columbia, 2005–2016
imageBackground Spatial clusters of syphilis have been observed within several jurisdictions globally; however, the degree to which they are predicted by the spatial distributions of gay, bisexual, and other men who have sex with men (GBM) and testing remains unknown. We sought to describe the spatial-temporal epidemiology of infectious syphilis and identify associations between neighborhood-level factors and rates of syphilis, in British Columbia, Canada. Methods We used ArcGIS to map infectious syphilis cases among men (2005 to 2016), SaTScan to detect areas with significantly elevated rates of syphilis, and spatial regression to identify associations between neighborhood-level factors and rates of syphilis. Results Five clusters were identified: a core in downtown Vancouver (incidence rate ratio [IRR], 18.0; 2007–2016), 2 clusters adjacent to the core (IRR, 3.3; 2012–2016; and IRR, 2.2; 2013–2016), 1 cluster east of Vancouver (IRR, 2.1; 2013–2016), and 1 cluster in Victoria (IRR, 4.3; 2015–2016). Epidemic curves were synchronized across cluster and noncluster regions. Neighborhood-level GBM population estimates and testing rates were both associated with syphilis rates; however, the spatial distribution of syphilis was not fully explained by either of these factors. Conclusions We identified two novel ecologic correlates of the spatial distribution of infectious syphilis—density of GBM and rates of syphilis testing—and found that these factors partially, though not entirely, explained the spatial distribution of clusters. Residual spatial autocorrelation suggests that greater syphilis testing coverage may be needed and low-barrier GBM-affirming testing should be expanded to regions outside the core.
Serological Markers for Syphilis Among Persons Presenting With Syndromes Associated With Sexually Transmitted Infections: Results From the Zimbabwe STI Etiology Study
imageBackground Syphilis prevalence in sub-Saharan Africa appears to be stable or declining but is still the highest globally. Ongoing sentinel surveillance in high-risk populations is necessary to inform management and detect changes in syphilis trends. We assessed serological syphilis markers among persons with sexually transmitted infections in Zimbabwe. Methods We studied a predominantly urban, regionally diverse group of women and men presenting with genital ulcer disease (GUD), women with vaginal discharge and men with urethral discharge at clinics in Zimbabwe. Syphilis tests included rapid plasma reagin and the Treponema pallidum hemagglutination assay. Results Among 436 evaluable study participants, 36 (8.3%) tested positive for both rapid plasma reagin and Treponema pallidum hemagglutination assay: women with GUD: 19.2%, men with GUD: 12.6%, women with vaginal discharge: 5.7% and men with urethral discharge: 1.5% (P < 0.0001). Conclusions Syphilis rates in Zimbabwe are high in sentinel populations, especially men and women with GUD.
Performance of a Dual Human Immunodeficiency Virus/Syphilis Rapid Test Compared With Conventional Serological Testing for Syphilis and Human Immunodeficiency Virus in a Laboratory Setting: Results From the Zimbabwe STI Etiology Study
imageBackground Dual human immunodeficiency virus (HIV)/syphilis rapid, point-of-care testing may enhance syphilis screening among high-risk populations, increase case finding, reduce time to treatment, and prevent complications. We assessed the laboratory-based performance of a rapid dual HIV/syphilis test using serum collected from patients enrolled in the Zimbabwe Sexually Transmitted Infections (STI) Etiology study. Methods Blood specimens were collected from patients presenting with STI syndromes in 6, predominantly urban STI clinics in different regions of Zimbabwe. All specimens were tested at a central research laboratory using the Standard Diagnostics Bioline HIV/Syphilis Duo test. The treponemal syphilis component of the dual rapid test was compared with the Treponema pallidum hemagglutination assay (TPHA) as a gold standard comparator, both alone or in combination with a nontreponemal test, the rapid plasma reagin test. The HIV component of the dual test was compared with a combination of HIV rapid tests conducted at the research laboratory following the Zimbabwe national HIV testing algorithm. Results Of 600 men and women enrolled in the study, 436 consented to serological syphilis and HIV testing and had specimens successfully tested by all assays. The treponemal component of the dual test had a sensitivity of 66.2% (95% confidence interval [CI], 55.2%–77.2%) and a specificity of 96.4% (95% CI, 94.5%–98.3%) when compared with TPHA; the sensitivity increased to 91.7% (95% CI, 82.6%–99.9%) when both TPHA and rapid plasma reagin were positive. The HIV component of the dual test had a sensitivity of 99.4% (95% CI, 98.4%–99.9%) and a specificity of 100% (95% CI, 99.9%–100%) when compared with the HIV testing algorithm. Conclusions Laboratory performance of the SD Bioline HIV/Syphilis Duo test was high for the HIV component of the test. Sensitivity of the treponemal component was lower than reported from most laboratory-based evaluations in the literature. However, sensitivity of the test increased substantially among patients more likely to have active syphilis for which results of both standard treponemal and nontreponemal tests were positive.
Relationship Gender Equality and Couples' Uptake of Oral Human Immunodeficiency Virus Self-Testing Kits Delivered by Pregnant Women in Kenya
imageBackground Higher gender equality is associated with many human immunodeficiency virus (HIV) preventive behaviors, including HIV testing. HIV self-testing is a relatively new testing technology that could assist with HIV prevention. However, there are no studies examining gender equality and HIV self-testing. We examined the associations between gender equality and couples' uptake of HIV self-testing among heterosexual couples expecting a child in central Kenya. Methods This analysis used data from a HIV self-testing randomized intervention trial among pregnant women attending antenatal care and their male partners. The primary exposures were gender equality (measured by the male partner's attitudes toward intimate partner violence, and the woman's report on her household decision making power), and the primary outcome was couples' uptake of HIV self-testing. Generalized linear mixed models framework was used to account for site-level clustering. Results In comparison to male partners reporting high acceptance of intimate partner violence, couples with male partners reporting medium acceptance (odds ratio, 2.36; 95% confidence interval, 0.99–5.63) or low acceptance (odds ratio, 2.50; 95% confidence interval, 1.20–5.21) were significantly more likely to use HIV self-testing. Gender equality measured by decision making power was not associated with couples' uptake of HIV self-testing. Conclusions This study is the first of its kind to examine the association between gender equality and couples' HIV self-testing. This holds important implications for HIV self-testing as we strive to achieve the United Nations Programme on HIV/acquired immune deficiency syndrome goal that 90% of individuals living with HIV should know their status.
Ceftriaxone Reduced Susceptible Neisseria gonorrhoeae in the Netherlands, 2009 to 2017: From: PenA: Mosaicism to A501T/V Nonmosaicism
imageObjectives To compare molecular and epidemiological differences between ceftriaxone-reduced susceptible (CRO-RS) and ceftriaxone-susceptible (CRO-S) N. gonorrhoeae (Ng) and to study the genetic relatedness of CRO-RS isolates. Methods Demographic and clinical data and samples for cultures were routinely collected from gonorrhoea patients visiting the Amsterdam STI clinic in 2009 to 2017. Ng multiantigen sequence typing (NG-MAST) and penA types were compared between CRO-RS and CRO-S Ng (frequency matched on year of isolation and sexual risk group). Minimum spanning trees were produced based on multilocus variable number of tandem repeats analysis for Ng (NG-MLVA) genotypes. Results We selected 174 CRO-RS isolates (minimum inhibitory concentration, ≥0.064 mg/L) and 174 CRO-S isolates (minimum inhibitory concentration, ≤0.016 mg/L). Demographic and clinical characteristics of patients were overall comparable between those infected with CRO-RS Ng and CRO-S Ng. However, CRO-RS isolates were more often collected from the pharyngeal site (odds ratios [OR], 3.64; P < 0.001), and patients with CRO-RS Ng were less often human immunodeficiency virus (HIV) and syphilis positive (OR, 0.63; P = 0.041 and OR, 0.58; P = 0.028, respectively). We identified 12 clusters based on NG-MLVA genotypes, including 3 large (>25 isolates) clusters predominantly containing CRO-RS isolates. Those from cluster 1 (n = 32) were mostly from 2009 to 2012 (n = 24; 75.0%), with a mosaic penA XXXIV pattern (n = 27; 84.4%) and belonging to NG-MAST genogroup G1407 (n = 24; 75.0%). Isolates from cluster 2 (n = 29) were mostly from 2013 to 2015 (n = 24; 82.7%), had a nonmosaic penA IX + A501T mutation (n = 22; 75.9%) and NG-MAST G2400 (n = 14; 48.3%). Most isolates from cluster 3 (n = 37) were from 2015 to 2017 (n = 26; 70.2%), had a nonmosaic penA IV + A501V mutation (n = 24; 64.9%) and NG-MAST G2318 (n = 22; 59.5%). Conclusions We observed a shift in the predominant penA (from mosaic toward nonmosaic plus A501T/V mutation), NG-MAST and NG-MLVA types among CRO-RS Ng over time. This indicates a successive spread of different CRO-RS Ng clones.
Sexually Transmitted Infections Detected During and After Incarceration Among People with Human Immunodeficiency Virus: Prevalence and Implications for Screening and Prevention
imageBackground Incarceration and human immunodeficiency virus (HIV) are associated with sexually transmitted infections (STIs); however, little is known about STI prevalence among people living with HIV (PLWH) during and after incarceration. Methods Electronic medical records from the Dallas County Jail and community HIV clinics were reviewed to determine the frequency and results of testing for gonorrhea, chlamydia, syphilis, and hepatitis B virus (HBV) among PLWH incarcerated in Dallas County Jail between 2010 and 2013. HIV viral loads (VL) and evidence of STI symptoms and treatment were also collected. Results During 2473 incarcerations, 6 (3%) of 190 tests were positive for gonorrhea, 7 (4%) of 190 for chlamydia, 231 (21%) of 1082 for syphilis, of which 53 (23%) were new diagnoses, and 48 (5%) of 1005 for HBV surface antigen. Among 1631 releases to the community, 808 followed up in community clinics, where 21 (4%) 553 tests were positive for gonorrhea, 23 (4%) of 555 for chlamydia, 150 (19%) of 808 for syphilis, of which 31 (21%) were new diagnoses, and 24 (6%) of 421 for HBV surface antigen. The majority of new STI cases, 51 (80%) of 64 in jail and 43 (77%)of 56 in the community, had a concurrent detectable (>200 copies/mL) HIV VL. Conclusions Testing for gonorrhea and chlamydia was low, particularly in jail, which was attributed to testing protocols. High proportions of PLWH tested positive for syphilis and HBV infection in both settings. The majority of patients with active STIs had a detectable HIV VL. Routine, opt-out screening for STIs for PLWH during and after incarceration has the potential to identify a high proportion of STIs and improve secondary HIV prevention.
Self-Reported History of Chlamydia or Gonorrhea Testing Among Heterosexual Women at High Risk of HIV Infection, National HIV Behavioral Surveillance, 2013
imageBackground The US Preventive Services Task Force recommends annual chlamydia and gonorrhea screening for sexually active women <25 and ≥25 years old with associated risk factors. We sought to determine self-reported chlamydia and gonorrhea testing and diagnosis rates in the past 12 months in a community-based sample of heterosexual women at high risk of HIV infection. Methods We used National HIV Behavioral Surveillance data from 2013 when surveillance was conducted in heterosexual adults with low social economic status. Our analysis was restricted to 18- to 44-year-old women who answered questions regarding chlamydia/gonorrhea testing and diagnosis in the previous 12 months. We calculated the percentage reporting testing and diagnosis. Poisson regressions with generalized estimating equations clustered on recruitment chain were used to assess factors associated with testing and diagnosis. Results Among 18- to 24-year-old women (n = 1017), 61.0% self-reported chlamydia testing and 57.6% gonorrhea testing in the past 12 months. Among 25- to 44-year-old women (n = 2322), 49.0% and 47.0% reported chlamydia and gonorrhea testing, respectively. Among the subset of 25- to 44-year-old women who met screening criteria, 51.2% reported chlamydia testing. Having seen a medical provider and HIV testing (past 12 months) were associated with chlamydia/gonorrhea testing in both age groups. Self-reported chlamydia (18–24 years, 21.4%; 25–44 years, 12.2%) and gonorrhea diagnoses (18–24 years, 8.4%; 25–44 years, 6.6%) were common. Conclusions A substantial number of eligible women may not have been screened for chlamydia/gonorrhea. Renewed efforts to facilitate screening may prevent sequelae and support disease control activities.
Are Boys Ready for Human Papillomavirus Vaccine? A National Study of Boys in Malaysia
imageBackground The aim of this study was to investigate factors associated with the willingness of boys to accept the human papillomavirus (HPV) vaccine. Methods A nationwide cross-sectional survey among Secondary One male students in Malaysia. Results Among 2823 respondents, knowledge about HPV infection and the HPV vaccine was extremely poor. The mean total knowledge score was only 3.17 (SD ± 2.14), out of a possible score of 10. The majority of respondents were unaware that vaccinating boys can help protect girls against HPV infection (81.6%), and HPV is a sexually transmitted infection (70.1%). Many had the misconception that only females get HPV (78.9%). In multivariable analysis, the factors associated with the intention to receive the HPV vaccination were: agreeing boys need to be vaccinated against HPV infection (odds ratio [OR], 2.05; 95% confidence interval [CI], 1.57–2.68), perceiving their parents might allow them to get the HPV vaccine (OR, 1.66; 95% CI, 1.18–2.34), perceived susceptibility to HPV infection (OR, 1.63; 95% CI, 1.06–2.52), and attending a rural school (OR, 1.49; 95% CI, 1.14–1.95). Conclusions Public health educational programs that are focused and tailored on parents consenting to HPV vaccination for boys at a young age can be useful in improving HPV vaccination rates among boys. There is also a pressing need to educate boys about the benefits of HPV vaccination in males and about HPV disease susceptibility to facilitate adoption of the HPV vaccine by young adults in the future.
Assessing Patient Opinions About Electronic Messaging for Gonorrhea and Chlamydia Result Notification and Partner Services, Durham, North Carolina
imageText or e-mail messages can provide timely notification of sexually transmitted disease results to patients. We assessed sexually transmitted disease clinic patient opinions about text/e-mail notification via a service called Chexout. Among 113 patients who opted in, the majority found results notification via texts/e-mails to be satisfactory (99.0%) and easy (92.9%).

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