scholarly journals Rectal gonorrhoea and chlamydia among men who have sex with men in coastal Kenya

2020 ◽  
Vol 4 ◽  
pp. 79
Author(s):  
Caroline J. Ngetsa ◽  
Marc W. Heymann ◽  
Alex Thiong'o ◽  
Elizabeth Wahome ◽  
John Mwambi ◽  
...  

Background: Men who have sex with men (MSM) have a higher prevalence of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections compared to the rest of the population, often remaining undiagnosed. In Kenya, prevalence of rectal CT and NG infection and NG antimicrobial sensitivity are poorly described. Methods: MSM who reported receptive anal intercourse (RAI) were recruited from an ongoing human immunodeficiency virus acquisition and treatment study in coastal Kenya in 2016-2017. Rectal swabs were collected at two time points 6 months apart to estimate prevalence and incidence of CT/NG infection using a molecular point-of-care assay. Participants positive for CT or NG were treated according to national guidelines. NG culture and antimicrobial susceptibility testing was performed. Participant and risk behaviour characteristics were collected and association with baseline CT/NG prevalence assessed by multivariable regression analysis. Results: Prevalence of CT/NG in 104 MSM was 21.2% (CT 13.5%, NG 9.6%, dual infection 1.9%) at baseline and 25.9% in 81 MSM at follow-up (CT 14.8%, NG 14.8%, dual infection 3.7%). CT/NG incidence was estimated at 53.0 (95% CI, 34.5-81.3) per 100 person-years. Most CT/NG positive participants were asymptomatic: 95.5% at baseline and 100% at follow-up. CT/NG infection was associated with being paid for sex [adjusted odds ratio (aOR)=6.2, 95% CI (1.7-22.9)] and being in formal employment [aOR=7.5, 95% CI (1.1-49.2)]. Six NG isolates were obtained at follow-up; all were susceptible to ceftriaxone and cefixime and all were resistant to penicillin, tetracycline and ciprofloxacin. Conclusions: There is a high prevalence and incidence of asymptomatic rectal CT and NG in MSM reporting RAI in coastal Kenya. MSM who were paid for sex or had formal employment were more likely to be infected with CT/NG suggesting increased risk behaviour during transactional sex. Antimicrobial susceptibility results suggest that current antibiotic choices in Kenya are appropriate for NG treatment.

2020 ◽  
Vol 4 ◽  
pp. 79
Author(s):  
Caroline J. Ngetsa ◽  
Marc W. Heymann ◽  
Alex Thiong'o ◽  
Elizabeth Wahome ◽  
John Mwambi ◽  
...  

Background: Men who have sex with men (MSM) have a higher prevalence of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections compared to the rest of the population, often remaining undiagnosed. In Kenya, prevalence of rectal CT and NG infection and NG antimicrobial sensitivity are poorly described. Methods: MSM who reported receptive anal intercourse (RAI) were recruited from an ongoing human immunodeficiency virus acquisition and treatment study in coastal Kenya in 2016-2017. Rectal swabs were collected at two time points 6 months apart to estimate prevalence and incidence of CT/NG infection using a molecular point-of-care assay. Participants positive for CT or NG were treated according to national guidelines. NG culture and antimicrobial susceptibility testing was performed. Participant and risk behaviour characteristics were collected and association with baseline CT/NG prevalence assessed by multivariable regression analysis. Results: Prevalence of CT/NG in 104 MSM was 21.2% (CT 13.5%, NG 9.6%, dual infection 1.9%) at baseline and 25.9% in 81 MSM at follow-up (CT 14.8%, NG 14.8%, dual infection 3.7%). CT/NG incidence was estimated at 53.0 (95% CI, 34.5-81.3) per 100 person-years. Most CT/NG positive participants were asymptomatic: 95.5% at baseline and 100% at follow-up. CT/NG infection was associated with being paid for sex [adjusted odds ratio (aOR)=6.2, 95% CI (1.7-22.9)] and being in formal employment [aOR=7.5, 95% CI (1.1-49.2)]. Six NG isolates were obtained at follow-up; all were susceptible to ceftriaxone and cefixime and all were resistant to penicillin, tetracycline and ciprofloxacin. Conclusions: There is a high prevalence and incidence of asymptomatic rectal CT and NG in MSM reporting RAI in coastal Kenya. MSM who were paid for sex or had formal employment were more likely to be infected with CT/NG suggesting increased risk behaviour during transactional sex. Antimicrobial susceptibility results suggest that current antibiotic choices in Kenya are appropriate for NG treatment.


2019 ◽  
Vol 4 ◽  
pp. 79
Author(s):  
Caroline J. Ngetsa ◽  
Marc W. Heymann ◽  
Alex Thiong'o ◽  
Elizabeth Wahome ◽  
John Mwambi ◽  
...  

Background: Men who have sex with men (MSM) experience a high burden of Chlamydia trachomatis (CT) and Neisseria gonorrhoea (NG) infections. These remain largely undiagnosed in the context of syndromic treatment. In Kenya, prevalence of rectal CT and NG infection and NG antimicrobial sensitivity are poorly described. Methods: MSM who reported receptive anal intercourse (RAI) were recruited from an ongoing human immunodeficiency virus acquisition and treatment study in coastal Kenya in 2016-2017. Rectal swabs were collected at two time points 6 months apart to estimate prevalence of CT/NG using a molecular point-of-care assay. Participants positive for CT or NG were treated according to national guidelines. NG culture and antimicrobial susceptibility testing was performed. Participant and risk behaviour characteristics were collected and association with baseline CT/NG prevalence was assessed by multivariable regression analysis. Results: Prevalence of CT/NG in 104 MSM was 21.2% (CT 13.5%, NG 9.6%, dual infection 1.9%) at baseline and 25% in 84 MSM at follow-up (CT 14.3%, NG 14.3%, dual infection 3.6%). Most CT/NG positive participants were asymptomatic: 95.5% at baseline and 100% at follow-up. CT/NG infection was associated with being paid for sex (aOR=6.2, 95%CI (1.7-22.9)) and being in formal employment (aOR=7.5, 95%CI (1.14-49.2)). Six NG isolates were obtained at follow-up; all isolates were susceptible to ceftriaxone and cefixime (1st line treatment for NG) and all were resistant to penicillin, tetracycline and ciprofloxacin. Conclusions: The high prevalence of asymptomatic rectal CT and NG in MSM reporting RAI demonstrates the need for frequent screening or presumptive treatment. MSM who were paid for sex or had formal employment were more likely to be infected with CT/NG, suggesting increased risk behaviour during transactional sex. Antimicrobial susceptibility results suggest that current antibiotic choices in Kenya are appropriate for NG treatment.


2019 ◽  
Vol 4 ◽  
pp. 79
Author(s):  
Caroline J. Ngetsa ◽  
Marc W. Heymann ◽  
Alex Thiong'o ◽  
Elizabeth Wahome ◽  
John Mwambi ◽  
...  

Background: Men who have sex with men (MSM) have a higher prevalence of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections compared to the rest of the population, often remaining undiagnosed. In Kenya, prevalence of rectal CT and NG infection and NG antimicrobial sensitivity are poorly described. Methods: MSM who reported receptive anal intercourse (RAI) were recruited from an ongoing human immunodeficiency virus acquisition and treatment study in coastal Kenya in 2016-2017. Rectal swabs were collected at two time points 6 months apart to estimate prevalence and incidence of CT/NG infection using a molecular point-of-care assay. Participants positive for CT or NG were treated according to national guidelines. NG culture and antimicrobial susceptibility testing was performed. Participant and risk behaviour characteristics were collected and association with baseline CT/NG prevalence assessed by multivariable regression analysis. Results: Prevalence of CT/NG in 104 MSM was 21.2% (CT 13.5%, NG 9.6%, dual infection 1.9%) at baseline and 25.9% in 81 MSM at follow-up (CT 14.8%, NG 14.8%, dual infection 3.7%). CT/NG incidence was estimated at 53.0 (95% CI, 34.5-81.3) per 100 person-years. Most CT/NG positive participants were asymptomatic: 95.5% at baseline and 100% at follow-up. CT/NG infection was associated with being paid for sex [adjusted odds ratio (aOR)=6.2, 95% CI (1.7-22.9)] and being in formal employment [aOR=7.5, 95% CI (1.1-49.2)]. Six NG isolates were obtained at follow-up; all were susceptible to ceftriaxone and cefixime and all were resistant to penicillin, tetracycline and ciprofloxacin. Conclusions: There is a high prevalence and incidence of asymptomatic rectal CT and NG in MSM reporting RAI in coastal Kenya. MSM who were paid for sex or had formal employment were more likely to be infected with CT/NG suggesting increased risk behaviour during transactional sex. Antimicrobial susceptibility results suggest that current antibiotic choices in Kenya are appropriate for NG treatment.


2018 ◽  
Vol 29 (14) ◽  
pp. 1407-1416 ◽  
Author(s):  
S Desai ◽  
F Burns ◽  
G Schembri ◽  
D Williams ◽  
A Sullivan ◽  
...  

Men who have sex with men (MSM) attending sexual health (SH) clinics are at high risk for HIV acquisition and are disproportionately affected by sexually transmitted infections (STIs). We collected standardised behavioural data from MSM attending clinics to characterise sexual behaviours and identify predictors for HIV and STIs. In 2012–2013, HIV-negative MSM attending five SH clinics in England reported sexual behaviours in the previous three months via a self-administered questionnaire. Behaviours were linked to the individual’s clinical records using national surveillance. The prevalence and incidence of bacterial STIs (gonorrhoea, Chlamydia, lymphogranuloma venereum and syphilis) and incidence of HIV were calculated. Adjusted odds ratios and hazard ratios with 95% confidence interval (CI) were reported for significant predictors. Of 1278 HIV-negative MSM, 54% were of white ethnicity and UK-born and 43% were 25–34 years old. Almost all men reported at least one partner in the last three months. Half reported condomless anal sex and 36% condomless receptive anal intercourse (CRAI). Incidence of bacterial STIs was 46/100 (95%CI 39–54) person years (py) and of HIV was 3.1/100 (95%CI 1.7–5.6) py. A STI at baseline and CRAI with increasing numbers of partners were associated with both incident infections. In this cohort of MSM high-risk behaviours and STIs were prevalent. Engagement in CRAI increased the likelihood of subsequent infection, while men diagnosed with a bacterial STI were at increased risk of a future STI. Clinical and behavioural risk assessments to determine an individual’s risk of infection could allow a more nuanced prevention approach that has greater success in reducing transmission.


2008 ◽  
Vol 137 (4) ◽  
pp. 504-512 ◽  
Author(s):  
M. XIRIDOU ◽  
J. WALLINGA ◽  
N. DUKERS-MUIJERS ◽  
R. COUTINHO

SUMMARYThe impact of hepatitis B vaccination in men having sex with men in Amsterdam has been marginal until now, possibly because of increases in sexual risk behaviour counterbalancing the effect of vaccination. A mathematical model is used to describe the hepatitis B epidemic. The model shows that, with the current vaccination coverage, the decrease in incidence is small in the beginning. However, the number of infections prevented per vaccine administered rises over time. Nevertheless, increased risk behaviour reduces the benefit of vaccination. Targeting high-risk men is more successful in reducing and containing the epidemic than targeting low-risk men. In conclusion, the vaccination campaign is effective and should be intensified. High-risk men should be targeted for vaccination and for risk reduction.


Sexual Health ◽  
2018 ◽  
Vol 15 (4) ◽  
pp. 292
Author(s):  
JaNelle M. Ricks ◽  
Richard A. Crosby ◽  
Leandro Mena

Background The purpose of this study was to examine the impact of relationship power on HIV risk behaviour among young Black men who have sex with men (MSM) in the Southern US. Methods: Data from 425 Black/African American males aged 18–29 years who reported recent anal intercourse with a male partner were analysed. Five selected measures of relationship power were tested for correlation and association with protected receptive anal intercourse using contingency tables and logistic regression analysis. Results: Acts of 100% protected receptive anal intercourse were common (n = 277, 65.2%). Men who reported low barriers to condom negotiation were significantly more likely to report protected acts (P < 0.001). Men who reported 100% protected acts were less likely to report financial dependence on male sexual partners and serosorting behaviour (12.0% vs 20.7%, P = 0.02; 31.5% vs 49.8%, P < 0.001 respectively). Conclusion: Future efforts should further examine the role of relationship power in HIV risk among young Black MSM, including the intersection of individual, dyadic and social-structure risks.


2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S394-S395
Author(s):  
Vanessa Kung ◽  
Sarika Pattanasin ◽  
Chaiwat Ungsedhapand ◽  
Wipas Wimonsate ◽  
Michael Thigpen ◽  
...  

Abstract Background Since 2014, the Thailand National Guidelines have recommended pre-exposure prophylaxis (PrEP) to prevent HIV among persons at risk. In March 2016, Silom Community Clinic (SCC) began PrEP provision to men who have sex with men (MSM) and transgender women (TGW) in Bangkok, Thailand. Methods SCC staff routinely counseled MSM and TGW attending HIV voluntary counseling and testing about PrEP. If clients believed that they were at substantial risk of HIV and were interested in PrEP, they could receive PrEP after screening that included HIV and renal function testing. Eligible clients received a 30-day supply of daily oral tenofovir-emtricitabine costing 800 Baht (30 USD), and completed a baseline computer-assisted self-interview (CASI) on knowledge and behaviors. At every 3-month follow-up, PrEP clients had a CASI on adherence; if they were interested in discontinuation of PrEP, they completed a CASI that included reasons for discontinuation. We conducted a descriptive analysis of baseline and follow-up CASI results. Results From March 2016 to February 2018, 192 clients were prescribed PrEP, and 80 (42%) continued PrEP for at least 6 months. The median age of clients starting PrEP was 31 years (range, 17–67 years), and 98% were MSM. Overall, most (77%) reported at least 1 of four risk behaviors in the last 3 months; among the 148, 120 (81%) had a sex partner with unknown or positive HIV status, 99 (67%) had anal sex without a condom, 22 (15%) reported an STI, and 16 (11%) received money or goods in exchange for sex. Among the 166 clients who returned for at least one follow-up visit, 135 (81%) completed the CASI at the last follow-up visit; of those, 106 (78%) reported 100% adherence to daily PrEP in the last 7 days, and 126 (93%) reported ≥80% adherence in the last 30 days. Of the 36 clients who discontinued PrEP and completed CASI, 33% reported the reason for discontinuation was no current HIV risk (33%); most (69%) reported that they would consider PrEP in the future. Conclusion Most PrEP users reported adherence to daily PrEP, and almost one half of those starting PrEP continued through month six. PrEP use at SCC is dynamic, and commonly started and stopped based on self-assessed risk. Regular review of PrEP implementation, with a focus on client needs, will optimize use of this prevention approach. Disclosures All authors: No reported disclosures.


2021 ◽  
pp. sextrans-2021-055199
Author(s):  
Julien Gras ◽  
Marine Pillet ◽  
Guillemette Antoni ◽  
Eric Cua ◽  
Isabelle Charreau ◽  
...  

ObjectivesWe aimed to assess among men who have sex with men (MSM) risk factors for HIV infection, to identify those who require urgent pre-exposure prophylaxis (PrEP) prescription.MethodsAll participants enrolled in the placebo arm of the ANRS IPERGAY trial, or infected between screening and day 0, were included. Baseline characteristics were described and HIV incidence rate ratios (RRs) were estimated with their 95% CIs.Results203 MSM were included with a median follow-up of 9 months. During the study period, 16 participants acquired HIV infection while not receiving tenofovir disoproxil and emtricitabin (TDF/FTC) over 212.4 person-years (PYs) of follow-up (incidence rate 7.5/100 PYs, 95% CI: 4.3 to 12.2). Being enrolled in Paris was associated with a significant increased risk of HIV infection (RR: 4.1; 95% CI: 1.1 to 28.3). A high number of sexual partners in prior 2 months (≥10 vs <5) and of condomless receptive anal sex episodes in prior 12 months (>5 vs <5) were strong predictors for HIV acquisition (RR: 10.6 (2 to 260.2) and 3.3 (1.2 to 10.2), respectively). Those who reported more often or only receptive sexual practices were also at increased risk (RR: 9.8 (2.0 to 246.6)). The use of recreational drugs in prior 12 months, especially gamma hydroxybutarate/gamma butyrolactone (RR: 5.9; 95% CI: 2 to 21.7), was associated with a significantly increased risk of HIV acquisition even after adjustment for sexual practices.ConclusionsMSM who have frequent condomless receptive anal sex and multiple partners, or use recreational drugs should be targeted in priority for PrEP prescription especially if they live in an area with a high prevalence of HIV infection.


Heart ◽  
2019 ◽  
Vol 105 (13) ◽  
pp. 975-981 ◽  
Author(s):  
Ralph Kwame Akyea ◽  
Joe Kai ◽  
Nadeem Qureshi ◽  
Barbara Iyen ◽  
Stephen F Weng

ObjectiveTo assess low-density lipoprotein cholesterol (LDL-C) response in patients after initiation of statins, and future risk of cardiovascular disease (CVD).MethodsProspective cohort study of 165 411 primary care patients, from the UK Clinical Practice Research Datalink, who were free of CVD before statin initiation, and had at least one pre-treatment LDL-C within 12 months before, and one post-treatment LDL-C within 24 months after, statin initiation. Based on current national guidelines, <40% reduction in baseline LDL-C within 24 months was classified as a sub-optimal statin response. Cox proportional regression and competing-risks survival regression models were used to determine adjusted hazard ratios (HRs) and sub-HRs for incident CVD outcomes for LDL-C response to statins.Results84 609 (51.2%) patients had a sub-optimal LDL-C response to initiated statin therapy within 24 months. During 1 077 299 person-years of follow-up (median follow-up 6.2 years), there were 22 798 CVD events (12 142 in sub-optimal responders and 10 656 in optimal responders). In sub-optimal responders, compared with optimal responders, the HR for incident CVD was 1.17 (95% CI 1.13 to 1.20) and 1.22 (95% CI 1.19 to 1.25) after adjusting for age and baseline untreated LDL-C. Considering competing risks resulted in lower but similar sub-HRs for both unadjusted (1.13, 95% CI 1.10 to 1.16) and adjusted (1.19, 95% CI 1.16 to 1.23) cumulative incidence function of CVD.ConclusionsOptimal lowering of LDL-C is not achieved within 2 years in over half of patients in the general population initiated on statin therapy, and these patients will experience significantly increased risk of future CVD.


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