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Background The UK Health Security Agency (UKHSA) COVID-19 Outbreak Surveillance Team (OST) was established in June 2020 to provide Local Authorities (LAs) in England with surveillance intelligence to aid their response to the SARS-CoV-2 epidemic. Reports were produced using standardised metrics in an automated format. Here we evaluate how the SARS-CoV-2 surveillance reports influenced decision making, how resources evolved and how they could be refined to meet the requirements of stakeholders in the future. Methods Public health professionals (n = 2,400) involved in the COVID-19 response from the 316 English LAs were invited to take part in an online survey. The questionnaire covered five themes: (i) report use; (ii) influence of surveillance outputs on local intervention strategies; (iii) timeliness; (iv) current and future data requirements; and (v) content development. Results Of the 366 respondents to the survey, most worked in public health, data science, epidemiology, or business intelligence. Over 70% of respondents used the LA Report and Regional Situational Awareness Report daily or weekly. The information had been used by 88% to inform decision making within their organisations and 68% considered that intervention strategies had been instituted as a result of these decisions. Examples of changes instigated included targeted communications, pharmaceutical and non-pharmaceutical interventions, and the timing of interventions. Most responders considered that the surveillance content had reacted well to evolving demands. The majority (89%) said that their information requirements would be met if the surveillance reports were incorporated into the COVID-19 Situational Awareness Explorer Portal. Additional information suggested by stakeholders included vaccination and hospitalisation data as well as information on underlying health conditions, infection during pregnancy, school absence and wastewater testing. Conclusions The OST surveillance reports were a valuable information resource used by local stakeholders in their response to the SARS-CoV-2 epidemic. Control measures that affect disease epidemiology and monitoring requirements need to be considered in the continuous maintenance of surveillance outputs. We identified areas for further development and, since the evaluation, information on repeat infections and vaccination data have been included in the surveillance reports. Furthermore, timeliness of publications has been improved by updating the data flow pathways.

Current healthcare practices are reactive and use limited physiological and clinical information, often collected months or years apart. Moreover, the discovery and profiling of blood biomarkers in clinical and research settings are constrained by geographical barriers, the cost and inconvenience of in-clinic venepuncture, low sampling frequency and the low depth of molecular measurements. Here we describe a strategy for the frequent capture and analysis of thousands of metabolites, lipids, cytokines and proteins in 10 μl of blood alongside physiological information from wearable sensors. We show the advantages of such frequent and dense multi-omics microsampling in two applications: the assessment of the reactions to a complex mixture of dietary interventions, to discover individualized inflammatory and metabolic responses; and deep individualized profiling, to reveal large-scale molecular fluctuations as well as thousands of molecular relationships associated with intra-day physiological variations (in heart rate, for example) and with the levels of clinical biomarkers (specifically, glucose and cortisol) and of physical activity. Combining wearables and multi-omics microsampling for frequent and scalable omics may facilitate dynamic health profiling and biomarker discovery.

Bacterial sexually transmitted infections (STIs) are rising relentlessly in virtually every country and among most risk groups. These infections have substantial individual and community consequences and costs. This review summarises the evidence for the effectiveness of different strategies to control STIs and assumes countries have sufficient financial resources to provide accessible health care. Reducing the probability of transmission essentially involves increasing condom use, which is problematic given that condom use is currently falling in most risk groups. Interventions to increase condom use are expensive and hard to sustain. Only a limited number of studies have shown it is possible to reduce the rate of partner change and sustained changes are difficult. In contrast, the provision of accessible health care has a powerful effect on the incidence rate of STIs, with dramatic falls in STIs in virtually all countries following the discovery of antibiotics. More recent studies support the powerful role of accessible health care as a strategy for putting substantial downward pressure on STI rates. Accessible health care has a powerful effect on the incidence of STIs. The professionals who are responsible for funding these services need to appreciate that they are ultimately responsible for the rates of STIs in their communities. In contrast, personal behaviour plays a less powerful role in determining the incidence of STIs and is hard to change and sustain at a population level. The public needs to appreciate that it is the governments they elect and not individuals who are responsible for the rates of STIs in their communities.

Abstract Background Following an upward trajectory in Lymphogranuloma venereum (LGV) diagnoses in the UK from 2004 to 2016, with annual diagnoses increasing from 28 to 904, diagnoses fell to 641 in 2017; this was inconsistent with the upward trend in other bacterial sexually transmissible infections (STIs) between 2016 and 2017. An analysis of surveillance data from multiple sources to investigate the possible factors contributing to this decline in LGV was performed. Methods: LGV tests and diagnoses in the UK from 2004 to 2018 were captured through laboratory data from the LGV Reference Laboratories and laboratories conducting in-house LGV testing. These data and clinical diagnoses data from England were analysed alongside the national management guidelines issued over the course of the epidemic. Results: LGV diagnoses increased between 2004 and 2015 and then decreased between 2016 and 2018. LGV testing increased from 2010 to 2018 (2690–10850). Test positivity halved between 2015 (14.8%, 929–6272) and 2018 (7.3%, 791–10850). Peaks in LGV testing and diagnoses appeared to coincide with the publication of national LGV management guidelines and changes to clinical practice. The proportion of LGV diagnoses among HIV-positive men who have sex with men (MSM) fell between 2013 and 2018 (74–48%). Conclusions: The fall in diagnoses and positivity were likely due to increasing earlier clinical diagnosis and treatment. Changes to the national management guidelines, the clinical policy and practice of some larger clinics and potentially changes to the guidelines for the treatment of chlamydia broadened the scope of testing and increased testing in asymptomatic patients which, in combination, likely had a positive effect on the control of LGV infection.

Detecting gastrointestinal (GI) infection transmission among men who have sex with men (MSM) in England is complicated by a lack of routine sexual behavioural data. We investigated whether gender distributions might generate signals for increased transmission of GI pathogens among MSM. We examined the percentage male of laboratory-confirmed patient-episodes for patients with no known travel history for 10 GI infections of public health interest in England between 2003 and 2013, stratified by age and region. An adult male excess was observed forShigellaspp. (annual maximum 71% male); most pronounced for those aged 25–49 years and living in London, Brighton and Manchester. An adult male excess was observed every year forEntamoeba histolytica(range 59.8–76.1% male),Giardia(53.1–57.6%) andCampylobacter(52.1–53.5%) and for a minority of years for hepatitis A (max. 69.8%) and typhoidal salmonella (max. 65.7%). This approach generated a signal for excess male episodes for six GI pathogens, including a characterised outbreak ofShigellaamong MSM. Stratified analyses by geography and age group were consistent with MSM transmission forShigella. Optimisation and routine application of this technique by public health authorities elsewhere might help identify potential GI infection outbreaks due to sexual transmission among MSM, for further investigation.

Within a century, congenital syphilis has been reduced from a major cause of morbidity and mortality to a condition rarely seen in the UK. Here, newly-derived literature and information searches were used to create a contemporary overview of the epidemic, including its epidemiology. Although constrained by high-quality healthcare services and with an incidence below the World Health Organization elimination threshold, congenital syphilis still has the potential to cause major consequences for the health and life chances of affected infants. If the complex challenges presented by this preventable disease are to be resolved, intervention strategies need to be optimised, rigorously assessed and extended across Europe.

We analysed national surveillance typing data of Shigella isolated from adult males with domestically acquired infection (a cohort largely consisting of men who have sex with men (MSM)) to establish whether multiple isolates from the same individual over time represented persistent carriage or re-infection.We carried out a retrospective cohort study of adult males diagnosed with Shigella from 2004 to 2018. Median time intervals between multiple isolations of Shigella flexneri and S. sonnei were compared. Analysis of whole genome sequencing data provided strain discrimination at the single nucleotide level and was used to quantify the genetic distance among isolates. Maximum likelihood phylogenies were constructed to determine whether persistent carriage (characterized by multiple isolations of the same strain) or re-infection (characterized by multiple isolations of different strains) was best supported by the phylogenetic analysis. A comparison analysis was carried out using data linked to adult females with domestically acquired shigellosis.The number of men reporting multiple isolations of Shigella species was 165/4733 (3.5%) compared with 31/2423 (1.3%) females (p 0.001). For isolate pairs from men associated with persistent carriage, the isolation time interval range was 6-176 days (median 23.5; IQR 8-70) and single nucleotide polymorphism (SNP) distance range was 0-7 SNPs (median 0.5; IQR 0-2). For those associated with re-infection, the isolation time interval was 34-2636 days (median 732; IQR 191-1258) and the SNP distance was 10-1462 SNPs (median 120; IQR 29-377).Multiple Shigella isolations in individuals with domestically acquired infections was more frequently observed in adult males than in adult females. Following the acute phase of infection, carriage can persist for months, and infection can recur within months, even with strains belonging to the same species and the same serotype. A combination of multiple sexual partners, persistent carriage following the acute phase of infection and evidence of recurrent re-infection is likely to contribute to sustained transmission in this population.

We identified two new Chlamydia trachomatis (CT) variants escaping Aptima Combo 2 (AC2) assay detection, in clinical specimens of two patients. One had a C1514T mutation the other a G1523A mutation, both within the AC2 23S rRNA target region. The prevalence of such variants among persons tested for CT in England was estimated to be fewer than 0.003%.

Background Increasing rates of sexually transmitted infections (STIs) in men-who-have-sex-with-men (MSM) in England is a pressing public health concern. Interventions targeting MSM, including information provision that effectively promotes sexual health, are needed. To support such intervention development, it is necessary to understand acceptable ways of delivering sexual health information. We explored the acceptability and potential uses and impacts of delivering sexual health information to MSM through social media and geosocial networking apps or dating apps. Methods Semi-structured interviews were conducted in person or by telephone with 25 MSM resident in England recruited via dating apps and social media advertisements. Interviews explored sexual health information sources, perceptions and uses. Attitudes towards sexual health promotion through social media and dating apps were then discussed. The data were analysed using thematic analysis. Results Sexual health information delivery through social media and dating apps was considered acceptable. Receiving information when browsing social media was viewed positively by most, as people have time to absorb information. In contrast, concerns were expressed that sharing or commenting on social media sexual health information may lead to judgements and discrimination. While social media reaches a high proportion of the population, dating apps can easily target MSM. However, tensions exist between the ability to provide information at an opportune time through dating apps, when users are connecting with new sexual partners, with the potential to adversely affect the app user’s experience. Hypothetical and actual uses and impacts of sexual health information ranged from no impact to reading information, sharing with peers, and increased awareness, to influencing healthcare-seeking, decision-making and risk-taking behaviours. Ensuring that information is engaging, positive in tone, not too clinical, focused on building social norms and delivered by trusted organisations were viewed as important for supporting its use. Conclusions Overall, these findings support the development of new interventions that use dating apps and social media for sexual health promotion. Electronic supplementary material The online version of this article (10.1186/s12889-019-7558-7) contains supplementary material, which is available to authorized users.

Spatial clusters and variations in the trajectory of local epidemics were explored in relation to sexual orientation, demographic factors, stage of syphilis infection and HIV serostatus.Kulldorff's scan statistics (SaTScan) was used to distinguish endemic and temporary clusters using a two-stage analysis.Endemic areas were found in London, Manchester, Brighton and Blackpool. Up to 40% of diagnoses were found within an 11 km radius of central London. Of men diagnosed with syphilis in London, 80% were men who have sex with men (MSM). Annual incidence in London increased from 24 cases (95% CI 23 to 26) per 100 000 male population in 2009 to 36 cases (95% CI 34 to38) in 2013. In comparison with clusters, endemic areas were characterised by a significantly higher (p0.05) proportion of MSM (83% compared with 73%), increased HIV positivity (41% vs 15%), age 35 to 44 years (34% vs 23%), a lower proportion of patients born in the UK (50% vs 79%) and a lower proportion of primary stage infection (40% vs 47%). Space-time clusters outside endemic areas occurred in urban and rural areas and diagnoses fluctuated below 10 per month. Exponential increases in diagnoses resembling point source outbreaks were seen at two locations.Control of syphilis in endemic areas has proved elusive and clusters present unique intervention opportunities. Investigating the diversity of local epidemics provides information that can be used to predict outbreak structure, plan and evaluate sexual health services and guide public health investigation, hypothesis generation and research.

OBJECTIVE: To estimate the incidence of congenital syphilis in the UK. DESIGN: Prospective study. SETTING AND POPULATION: United Kingdom. METHODS: Children born between February 2010 and January 2015 with a suspected diagnosis of congenital syphilis were reported through an active surveillance system. MAIN OUTCOME MEASURES: Number of congenital syphilis cases and incidence. RESULTS: For all years, reported incidence was below the WHO threshold for elimination (

Background and objectivesThe evidence base supporting the National Chlamydia Screening Programme, initiated in 2003, has been questioned repeatedly, with little consensus on modelling assumptions, parameter values or evidence sources to be used in cost-effectiveness analyses. The purpose of this project was to assemble all available evidence on the prevalence and incidence ofChlamydia trachomatis(CT) in the UK and its sequelae, pelvic inflammatory disease (PID), ectopic pregnancy (EP) and tubal factor infertility (TFI) to review the evidence base in its entirety, assess its consistency and, if possible, arrive at a coherent set of estimates consistent with all the evidence.MethodsEvidence was identified using ‘high-yield’ strategies. Bayesian Multi-Parameter Evidence Synthesis models were constructed for separate subparts of the clinical and population epidemiology of CT. Where possible, different types of data sources were statistically combined to derive coherent estimates. Where evidence was inconsistent, evidence sources were re-interpreted and new estimates derived on a post-hoc basis.ResultsAn internally coherent set of estimates was generated, consistent with a multifaceted evidence base, fertility surveys and routine UK statistics on PID and EP. Among the key findings were that the risk of PID (symptomatic or asymptomatic) following an untreated CT infection is 17.1% [95% credible interval (CrI) 6% to 29%] and the risk of salpingitis is 7.3% (95% CrI 2.2% to 14.0%). In women aged 16–24 years, screened at annual intervals, at best, 61% (95% CrI 55% to 67%) of CT-related PID and 22% (95% CrI 7% to 43%) of all PID could be directly prevented. For women aged 16–44 years, the proportions of PID, EP and TFI that are attributable to CT are estimated to be 20% (95% CrI 6% to 38%), 4.9% (95% CrI 1.2% to 12%) and 29% (95% CrI 9% to 56%), respectively. The prevalence of TFI in the UK in women at the end of their reproductive lives is 1.1%: this is consistent with all PID carrying a relatively high risk of reproductive damage, whether diagnosed or not. Every 1000 CT infections in women aged 16–44 years, on average, gives rise to approximately 171 episodes of PID and 73 of salpingitis, 2.0 EPs and 5.1 women with TFI at age 44 years.Conclusions and research recommendationsThe study establishes a set of interpretations of the major studies and study designs, under which a coherent set of estimates can be generated. CT is a significant cause of PID and TFI. CT screening is of benefit to the individual, but detection and treatment of incident infection may be more beneficial. Women with lower abdominal pain need better advice on when to seek early medical attention to avoid risk of reproductive damage. The study provides new insights into the reproductive risks of PID and the role of CT. Further research is required on the proportions of PID, EP and TFI attributable to CT to confirm predictions made in this report, and to improve the precision of key estimates. The cost-effectiveness of screening should be re-evaluated using the findings of this report.FundingThe Medical Research Council grant G0801947.

Background This study explored spatial-temporal variation in diagnoses of gonorrhoea to identify and quantify endemic areas and clusters in relation to patient characteristics and outcomes of partner notification (PN) across England, UK. Methods Endemic areas and clusters were identified using a two-stage analysis with Kulldorff’s scan statistics (SaTScan). Results Of 2,571,838 tests, 53,547 diagnoses were gonorrhoea positive (positivity = 2.08%). The proportion of diagnoses in heterosexual males was 1.5 times that in heterosexual females. Among index cases, men who have sex with men (MSM) were 8 times more likely to be diagnosed with gonorrhoea than heterosexual males (p

Objectives To inform control strategies undertaken as part of an outbreak of Shigella flexneri 3a among men who have sex with men (MSM). Methods All men aged ≥18 years diagnosed with S flexneri 3a between October 2012 and May 2013 were invited to participate. Semistructured in-depth quantitative interviews were conducted to explore lifestyle and sexual behaviour factors. Results Of 53 men diagnosed, 42 were interviewed of whom 34 were sexually active MSM. High numbers of sexual partners were reported (median=22) within the previous year; most were casual encounters met through social media networking sites (21/34). 63% (20/32) were HIV-positive and actively sought positive partners for condomless sex. 62% (21/34) of men had used chemsex drugs (mephedrone, crystal methamphetamine and γ-butyrolactone/γ-hydroxybutrate), which facilitate sexually disinhibiting behaviour during sexual encounters. 38% (8/21) reported injecting chemsex drugs. Where reported almost half (12/23) had attended or hosted sex parties. All reported oral–anal contact and fisting was common (16/34). Many had had gonorrhoea (23/34) and chlamydia (17/34). HIV-positive serostatus was associated with both insertive anal intercourse with a casual partner and receptive fisting (adjusted OR=15.0, p=0.01; adjusted OR=18.3, p=0.03) as was the use of web applications that promote and facilitate unprotected sex (adjusted OR=19.8, p=0.02). Conclusions HIV-positive MSM infected with S flexneri 3a used social media to meet sexual partners for unprotected sex mainly at sex parties. The potential for the transmission of S flexneri , HIV and other infections is clear. MSM need to be aware of the effect that chemsex drugs have on their health.

Four isolated cases of congenital syphilis born to mothers who screened syphilis negative in the first trimester were identified between March 2016 and January 2017 compared with three cases between 2010 and 2015. The mothers were United Kingdom-born and had no syphilis risk factors. Cases occurred in areas with recent increases in sexually-transmitted syphilis among women and men who have sex with men, some behaviourally bisexual, which may have facilitated bridging between sexual networks.

After asking 80 experts 22 296 questions over 64 days and distilling the findings into 758 pages and 30 appendices, the Royal Commission on Venereal Diseases (1916) provided an exhaustive insight into the grip that syphilis and gonorrhoea had on UK society.1 Recruiting healthy young men for the many conflicts of the early 20th century had highlighted the poor state of the nation’s health but, as WWI dragged on, high morbidity due to syphilis and gonorrhoea became a significant operational issue for the military. The government accepted the Royal Commission’s conclusion that only …

Introduction There has been a rapid rise in infectious syphilis (IS) diagnoses in England since 2011 but congenital syphilis (CS) is rare. In 2016, 3 CS cases were diagnosed in geographically dispersed areas of England. Unusually, their mothers had tested negative at first trimester antenatal screen (screen-negative), indicating syphilis acquisition during pregnancy. Simulation modelling using historical CS cases indicated an event probability of 3%. We investigated the spatial and temporal relationship between screen-negative CS cases and IS epidemiology in the affected areas. Methods Data from 01/2011-06/2016 were obtained from GUMCADv2, the national electronic surveillance system. England was divided into 3 syphilis epidemiological areas (SEAs): wider incident areas (WIAs; the 3 affected and immediate surrounding counties); endemic areas (with established epidemics in men who have sex with men-MSM) and non-incident non-endemic areas (NINEAs). Time-series analysis (TSA) was used to estimate IS outliers by gender, sexual orientation and SEA. Associations between IS characteristics and SEA (WIAs vs. NINEAs) were assessed using Pearson’s chi-square and Kruskal-Wallis tests. Mothers of CS cases were excluded from analyses. Results In 2011–2016, IS rates/100,000 in WIAs rose in heterosexual women (1.3–3.0) and MSM (8.9–13.9) but fell in heterosexual men (3.7–3.0). In NINEAs, rates rose in heterosexual women (1.6–1.9), MSM (5.0–10.8) and heterosexual men (2.7–3.2). On TSA, IS cases significantly exceeded expected bounds in 2016 in heterosexual women in WIAs; no exceedance was seen in NINEAs. In 2016, heterosexual women with IS were more likely to be UK-born in WIAs than in NINEAs (78% vs. 39%; p Conclusion Increased syphilis transmission in some sexual networks of MSM and a higher proportion of bisexual men in WIAs may have created more opportunities for IS acquisition in women. Efforts to raise awareness of the potential risk of acquiring syphilis during pregnancy are needed.

Between July 2016 and January 2017, 37 confirmed cases of hepatitis A with two unique IA genotype strains primarily among men who have sex with men, were reported across eight areas in England and Northern Ireland. Epidemiological and laboratory investigations indicate that these strains may have been imported several times from Spain, with secondary sexual transmission in the United Kingdom. Local and national public health services are collaborating to control this ongoing outbreak.

SUMMARYPelvic inflammatory disease (PID) and more specifically salpingitis (visually confirmed inflammation) is the primary cause of tubal factor infertility and is an important risk factor for ectopic pregnancy. The risk of these outcomes increases following repeated episodes of PID. We developed a homogenous discrete-time Markov model for the distribution of PID history in the UK. We used a Bayesian framework to fully propagate parameter uncertainty into the model outputs. We estimated the model parameters from routine data, prospective studies, and other sources. We estimated that for women aged 35–44 years, 33·6% and 16·1% have experienced at least one episode of PID and salpingitis, respectively (diagnosed or not) and 10·7% have experienced one salpingitis and no further PID episodes, 3·7% one salpingitis and one further PID episode, and 1·7% one salpingitis and ⩾2 further PID episodes. Results are consistent with numerous external data sources, but not all. Studies of the proportion of PID that is diagnosed, and the proportion of PIDs that are salpingitis together with the severity distribution in different diagnostic settings and of overlap between routine data sources of PID would be valuable.

Objectives To investigate the drivers behind the epidemic expansion of lymphogranuloma venereum (LGV) cases in late 2009 to help inform infection control. Methods An epidemic curve of all LGV diagnoses between 2003 and mid-2012 was plotted and divided into the initial detection period, and endemic, growth and hyperendemic phases. Detailed clinical and behavioural data were collected and logistic regression was used to compare the characteristics of diagnoses made during the growth and endemic phases. Results Between April 2003 and June 2012, 2138 cases of LGV were diagnosed. Enhanced surveillance data were available for 1370 of whom 1353 were men who have sex with men (MSM). 98% of MSM presented with proctitis, 82% were HIV positive, 20% were hepatitis C virus (HCV) antibody positive, and 67% lived in London. Growth phase cases (n=488) were more likely to report meeting sexual contacts at sex parties (11% vs 6%, p=0.014), unprotected receptive or insertive oral intercourse (93% vs 86%, p=0.001; 92% vs 85%, p=0.001) and sharing sex toys (8% vs 4%; p=0.011), and to be diagnosed HIV positive (86% vs 80%; p=0.014), than endemic phase cases (n=423). Unprotected receptive anal intercourse was equally likely to be reported in both phases (71% vs 73%). After adjustment, cases in the growth phase were more likely to meet new contacts at sex parties (p=0.031) and be HIV positive (p=0.045). Conclusions Rapid epidemic growth coincided with an intensification of unprotected sexual activity among a core population of HIV-positive MSM. Efforts to develop innovative interventions for this hard-to-reach population are needed.

Our objective in this study was to estimate the probability that a Chlamydia trachomatis (CT) infection will cause an episode of clinical pelvic inflammatory disease (PID) and the reduction in such episodes among women with CT that could be achieved by annual screening. We reappraised evidence from randomized controlled trials of screening and controlled observational studies that followed untreated CT-infected and -uninfected women to measure the development of PID. Data from these studies were synthesized using a continuous-time Markov model which takes into account the competing risk of spontaneous clearance of CT. Using a 2-step piecewise homogenous Markov model that accounts for the distinction between prevalent and incident infections, we investigated the possibility that the rate of PID due to CT is greater during the period immediately following infection. The available data were compatible with both the homogenous and piecewise homogenous models. Given a homogenous model, the probability that a CT episode will cause clinical PID was 0.16 (95% credible interval (CrI): 0.06, 0.25), and annual screening would prevent 61% (95% CrI: 55, 67) of CT-related PID in women who became infected with CT. Assuming a piecewise homogenous model with a higher rate during the first 60 days, corresponding results were 0.16 (95% CrI: 0.07, 0.26) and 55% (95% CrI: 32, 72), respectively.

BackgroundEvidence suggests that sexual transmission between men has replaced foreign travel as the predominant mode ofShigellatransmission in England. However, sexuality and HIV status are not routinely recorded for laboratory-reportedShigella,and the role of HIV in theShigellaepidemic is not well understood.MethodsThe Modular Open Laboratory Information System containing allShigellacases reported to Public Health England (PHE) and the PHE HIV and AIDS Reporting System holding all adults living with diagnosed HIV in England were matched using a combination of Soundex code, date of birth and gender.ResultsFrom 2004 to 2015, 88 664 patients were living with HIV, and 10 269Shigellacases were reported in England; 9% (873/10 269) ofShigellacases were diagnosed with HIV, of which 93% (815/873) were in men.Shigellacases without reported travel history were more likely to be living with HIV than those who had travelled (14% (751/5427) vs 3% (134/4854); pShigellain men with HIV rose from 47/100 000 to 226/100 000 (pShigellacases without travel and with HIV, 91% (657/720) were men who have sex with men (MSM). HIV precededShigelladiagnosis in 86% (610/720), and 65% (237/362) had an undetectable viral load (DiscussionWe observed a sustained increase in the national rate of shigellosis in MSM with HIV, who may experience more serious clinical disease. Sexual history, HIV status and STI risk might require sensitive investigation in men presenting with gastroenteritis.

Background: The National Chlamydia Screening Programme (NCSP) was established in England to control chlamydia in people < 25 years. This study examined variations in NCSP delivery in 2008, its first full year of national coverage, by comparing the distribution of screening venues and coverage with the risk of testing positive in men and women by socioeconomic circumstances (SEC) and age.Methods: A total of 550,000 NCSP screening records from 2008 were linked to the Index of Multiple Deprivation 2007. NCSP provision (venues/1000 population aged 13-24 years) was examined by SEC. NCSP coverage (tests/target population) and chlamydial positivity (positive results/[positive + negative results]) were examined separately in men and women by SEC and age. Odds ratios for positivity were calculated, adjusted for socioeconomic quintile, age, ethnicity, behavior, and screening provider.Results: NCSP coverage was just 4.1% (95% confidence interval [CI]: 4.0-4.1) in men and 9.6% (95% CI: 9.5-9.6) in women. Screening provision and coverage were highest in more socioeconomically deprived areas where chlamydia positivity was also highest. The adjusted odds for testing positive in the most deprived areas was 1.4 (95% CI: 1.3-1.5) times higher in men and 1.4 (95% CI: 1.4-1.5) times higher in women than the least deprived areas.Conclusions: In the first year in which all areas delivered screening, the NCSP's total coverage was low, particularly in men. However, coverage was higher in deprived populations, who were also at increased risk of testing positive for infection. This analysis provides a baseline by which to monitor social variations in NCSP delivery as coverage expands.

Objective To investigate factors associated with variations in diagnoses of primary, secondary and early latent syphilis in England and Wales. Methods Data were derived from two sources: diagnoses made in genitourinary medicine clinics reported on form KC60, and information collected through National Enhanced Syphilis Surveillance (NESS). Multinomial regression modelling was used for data analysis. Results Between 1999 and 2008, 12 021 NESS reports were received, 54% of KC60 reports. The dominant profile of the epidemic was one of white men who have sex with men aged 35–44, often co-infected with HIV, centred in larger cities. During this period, the proportion of primary cases increased over time, while the proportion of secondary cases fell. Primary cases exceeded secondary cases by 2004. The proportion of early latent cases remained relatively stable over time and tended to be lower than that of primary and secondary infection. Patients who attended because they had symptoms of infection, had been identified through partner notification, were HIV positive, and were UK born were more likely to present with primary or secondary infection than with early latent infection. A higher proportion of early latent cases were seen among patients who were Asian, had contacted sexual partners through saunas, bars and the internet, had untraceable partners, and had acquired infection in Manchester. Conclusions The continuing syphilis epidemic indicates that control has only been partially effective, with ongoing transmission being sustained. Intensive and targeted efforts delivered locally are required to interrupt further transmission.

Variations in passerine populations were examined at a single Common Bird Census location over 24 years. Long term trends in the populations of Robin Erithacus rubecula , Blackbird Turdus merula , Wren Troglodytes troglodytes , Blue Tit Parus caeruleus and Great Tit Parus major were investigated. The statistical method proposed by Bulmer(1), which overcomes the problem of regressions to the mean, was used to investigate density-dependent variation (DDV). Little evidence of DDV was found and so long-term population trends could be evaluated. The commonest species seen were the Wren and Robin. Significant increases were seen in breeding pairs of Great Tit (p=

Worldwide, of the 12 million people infected with syphilis every year, two million are pregnant women. An estimated 50 % of these pregnancies will end in fetal or perinatal death, low birth weight babies or babies born with congenital syphilis. The World Health Organization is developing control strategies for the developing world. Cases of congenital syphilis are costly to health care systems but can be prevented through antenatal screening and treatment. The evolving European syphilis epidemic has resulted in an increased incidence of infection in reproductive age women and the emergence of cases of congenital syphilis. This reflects a failure of prenatal care delivery systems as well as syphilis control programs.

Objective: To determine the extent of testing, diagnostic episodes and management of genital Chlamydia trachomatis (CT) infection in UK primary care using a large primary care database. Methods: The incidence of CT tests, diagnostic episodes, treatments and referrals was measured for all adult patients in the General Practice Research Database between 1990 and 2004. Results: In those aged 12-64 years in 2004, rates of CT testing increased to reach 1439/100,000 person years (py) in women but only 74/100,000 py in men. Testing rates were highest among 20-24 year old women (5.5% tested in 2004) followed by 25 to 34 year old women (3.7% tested in 2004). 0.5% of registered 16 to 24 year old women were diagnosed with CT in 2004. Three-quarters of patients with a recorded CT diagnosis had had an appropriate prescription issued in 2004, a proportion which increased from 1990 along with a decrease in referrals to genitourinary medicine. In 2004, general practitioners treated 25.0% of all recorded CT diagnoses in females and 5.1% of those in males. Conclusions: Testing for and diagnostic episodes of CT in primary care have increased since 1990. Testing continues disproportionately to target women over 24. Extremely low testing rates of testing in men, together with high positivity, demonstrate a missed opportunity for CT diagnosis and contact tracing in general practice.

Background. Over the past 2 years, lymphogranuloma venereum (LGV), caused by L serovars of Chlamydia trachomatis, has emerged as a significant problem among men who have sex with men (MSM). We report on, to our knowledge, the largest case series of LGV to date, with detailed epidemiological and clinical characteristics of the epidemic in the United Kingdom. Methods. A national diagnostic service and surveillance system was established in October 2004. Cases were confirmed by the presence of C. trachomatis and an LGV serovar (L1, L2, or L3) from genotyping. For confirmed cases, an enhanced surveillance questionnaire was sent to the clinician. Results. Through February 2006, a total of 327 cases of LGV were confirmed. Cases were diagnosed across the United Kingdom, with the majority from London (71%) and Brighton (13%). Case reports were received for 282 MSM. The majority (96%) had proctitis, many with severe local and systemic symptoms. There was a high level of coinfection with human immunodeficiency virus (76%), hepatitis C (19%), and other sexually transmitted infections (39%). Nine cases of human immunodeficiency virus infection were diagnosed around the same time as LGV. Most cases were acquired within the United Kingdom, although patients with early cases were more likely to report contacts in The Netherlands. Conclusions. We found a significant burden of this once-rare sexually transmitted infection among MSM in the United Kingdom. LGV may be contributing to the epidemic of human immunodeficiency virus infection by facilitating transmission. Further control efforts are required, including awareness campaigns, continued detailed surveillance, and expanded chlamydia testing among MSM.

United Kingdom (UK) national data show a sharp increase in diagnoses of lymphogranuloma venereum (LGV) since 2012. Most cases are in men who have sex with men (MSM) living in London, with high rates of co-infection with HIV and other sexually transmitted infections. In light of these data, and the recent finding that one quarter of LGV infections may be asymptomatic, clinicians should be vigilant in testing for LGV, including in asymptomatic HIV-positive MSM.

In the early summer of 2011, clinicians at Northumberland Sexual Health clinic noticed a sustained increase in cases of gonorrhoea and, more noticeably, a change in case profile from the usual picture of predominantly men who have sex with men (MSM) to heterosexual young adults, with more young females affected. The lead clinician contacted the local Health Protection Team (HPT) to seek advice about investigation and public health interventions. A multiagency outbreak control team (OCT) was convened to coordinate the investigation and control measures. Over the following 3-year period, 360 cases of gonorrhoea were detected in a locally discrete population (figure 1) affecting mainly young heterosexual adults. Patterns of transmission were studied and control measures implemented; however, cases continued to occur at rates higher than pre-outbreak levels. Figure 1 Epidemic curve of outbreak showing all gonorrhoea cases resident in Northumberland, January 2010 to November 2014, including dates when outbreak control actions were initiated. *2010 data were extracted from GUMCAD, 2011 onwards were from enhanced surveillance. We describe the approaches taken for investigation and implementation of control measures, reflect on lessons learned and offer advice to colleagues facing similar situations. Figure 1 describes the actions taken over the course of the outbreak investigation. Cases were managed according to UK national standards.1 Almost all cases were treated on the day of diagnosis. All patients were advised to return for a test of cure; 50% did and all were negative. Eighty-five per cent of cases were treated with ceftriaxone and azithromycin. All cases were offered a full sexually transmitted infection (STI)/HIV screen; 97% accepted. The main reason for declining a full STI screen was not wishing to have a blood sample collected. Guidance on the investigation and management of outbreaks of STIs, including the different teams and organisations that should be included, is available2 …

Objective:To identify risk factors for pelvic inflammatory disease (PID) in female students. Methods:We performed a prospective study set in 11 universities and 9 further education colleges in London. In 2004–2006, 2529 sexually experienced, multiethnic, female students, mean age 20.8 years, provided self-taken vaginal samples and completed questionnaires at recruitment to the Prevention of Pelvic Infection chlamydia screening trial. After 12 months, they were followed up by questionnaire backed by medical record search and assessed for PID by blinded genitourinary medicine physicians. Results:Of 2004 (79%) participants who reported numbers of sexual partners during follow-up, 32 (1.6%, 95% CI 1.1% to 2.2%) were diagnosed with PID. The strongest predictor of PID was baseline Chlamydia trachomatis (relative risk (RR) 5.7, 95% CI 2.6 to 15.6). After adjustment for baseline C. trachomatis, significant predictors of PID were ≥2 sexual partners or a new sexual partner during follow-up (RR 4.0, 95% CI 1.8 to 8.5; RR 2.8, 95% CI 1.3 to 6.3), age Mycoplasma genitalium infection were no longer significantly associated with PID after adjustment for baseline C. trachomatis. Conclusions:Multiple or new partners in the last 12 months, age C. trachomatis infection. Sexual health education and screening programmes could be targeted at these high-risk groups.

HIV seroadaptive behaviours may have contributed to greater sexually transmitted infection (STI) transmission in HIV-positive men who have sex with men(MSM) and to the global increase in STIs. Using multiple national surveillance data sources and population survey data, we estimated the risk of STIs in HIV-positive MSM and assessed whether transmission in HIV-positive MSM has contributed to recent STI epidemics in England. Since 2009, an increasing proportion of STIs has been diagnosed in HIV-positive MSM, and currently, the population rate of acute bacterial STIs is up to four times that of HIV-negative or undiagnosed MSM. Almost one in five of all diagnosed HIV-positive MSM in England had an acute STI diagnosed in 2013. From 2009 to 2013, the odds of being diagnosed with syphilis increased from 2.71 (95% confidence interval (CI) 2.41–3.05, p

The performance of a time-resolved fluorescence immunoassay (TRFIA) for detection of treponemal IgG from oral fluid specimens has been assessed in a predominantly HIV-infected population. Serological investigation is the method of choice for confirming clinical suspicion of syphilis; however, in the primary stage of disease, direct detection of treponemes in lesion fluid or Treponema pallidum DNA is recommended because of the reduced sensitivity of serological tests. There may be occasions when blood for serological investigation is difficult to obtain due to individual patient preference or logistical necessity to improve participation in screening initiatives, particularly in outreach situations. Collection of oral fluid for detection of treponemal antibody may prove an attractive alternative and, with this in mind, an oral fluid assay for detection of treponemal IgG was developed. Time-resolved fluorescence was used to detect treponemal IgG extracted from commercially available oral fluid collection devices. Paired serum and saliva samples were obtained from 210 individuals, 101 of whom were diagnosed with syphilis on the grounds of medical examination confirmed by serological testing. Oral fluid specimens from 14 subjects were rejected because they contained insufficient control antibody or were inhibitory. The population tested was predominantly men who have sex with men, many of whom were HIV infected. The overall sensitivity and specificity of the oral fluid assay was 95.8 and 86.1%, respectively, based on the 5th percentile of the positive results, and 93.7 and 91.1%, respectively, based on a cutoff derived by mixture model analysis. For individuals with primary syphilis, the optimum sensitivity of the oral fluid assay was 87.5%, whereas in those with disease classified as secondary syphilis and early latent syphilis, the sensitivity of the oral fluid assay was 100 and 94.7%, respectively. The oral fluid assay is a useful alternative to serological testing in certain situations, and further development of this technology to enable detection of treponemal IgM should increase its sensitivity for detecting cases of primary syphilis.

This paper describes the incidence of sexually transmitted infections (STIs) recorded in the Weekly Returns Service (WRS) between 1994 and 2001. There were approximately 76,500 new diagnoses of STIs (7500 males, 71,000 females) and associated syndromes. Candidiasis was the commonest condition reported in males and females followed by pelvic inflammatory disease. The ratio of males to females was 7.1 for non-specific urethritis, and 9.1 and 2.1 for Reiter's syndrome and pediculosis pubis, respectively. The incidence of anogenital warts and genital herpes changed little over time. New diagnoses of genital herpes were higher in females than in males (ratio 2.8:1), whereas the mean annual incidence of genital warts was similar in males and females. The WRS provides an insight into the burden of STI diagnoses, and diagnoses related to STIs that are managed in general practice, and as such has the potential to make a substantial contribution to STI surveillance in England.

To investigate factors associated with pelvic inflammatory disease (PID).A case-control study was used to investigate demographic and behavioural factors, and causative agents associated with PID.A total of 381 participants were recruited: 140 patients, and 105 and 136 controls in tubal ligation and general practice groups, respectively. When compared with a PID-free tubal ligation control group, increased risk of PID was associated with: age25 years; age at first sexual intercourse20 years; non-white ethnicity; not having had children; a self-reported history of a sexually transmitted disease; and exposure to Chlamydia trachomatis. When compared with a general practice control group, increased risk was associated with: age25 years; age at first sexual intercourse15 years; lower socioeconomic status; being single; adverse pregnancy outcome; a self-reported history of a sexually transmitted disease; and exposure to C trachomatis. Of the cases, 64% were not associated with any of the infectious agents measured in this study (idiopathic).A high proportion of cases were idiopathic. PID control strategies, which currently focus on chlamydial screening, have to be reviewed so that they can prevent all cases of PID. Behavioural change is a key factor in the primary prevention of PID, and potential modifiable risk factors were associated with PID.

Objective: The objective of this study was to characterize the resurgence of infectious syphilis in the United Kingdom between 1997 and 2003. Study: The authors conducted a retrospective analysis of routine surveillance data from genitourinary medicine clinics and data collected through enhanced surveillance. Results: Between 1997 and 2002, diagnoses of primary, secondary, and early latent syphilis made at genitourinary medicine clinics increased by 213% in heterosexual males, 1412% in men who have sex with men (MSM), and 22% in females. These increases have been driven by a series of outbreaks, the largest of which were seen in Manchester (528) and London (1222) up to the end of October 2003. All the outbreaks have been geographically localized and the majority of cases occurred in MSM. A high percentage of concurrent HIV infection was reported, and oral sex was often reported as a route of transmission. Conclusions: Syphilis has re-emerged in response to behavior change, probably driven by changes in the HIV epidemic. The future course of the epidemic is difficult to predict and control remains elusive.

Objectives: To critically evaluate the available evidence base concerned with the diagnosis of pelvic inflammatory disease (PID) based on clinical presentation, and to investigate the relation between signs and symptoms and the presence of laparoscopically diagnosed PID using the largest available dataset. Methods: The evidence base was critically evaluated and data collected by Lund University between 1960 and 1969 were used to compare clinical presentation with the results of laparoscopic investigation. Three techniques were used in this investigation—sensitivity and specificity, likelihood ratios, and discriminant analysis. Results: None of the variables (abnormal vaginal discharge, fever >38°C, vomiting, menstrual irregularity, ongoing bleeding, symptoms of urethritis, rectal temperature >38°C, marked tenderness of pelvic organs on bimanual examination, adnexal mass, and erythrocyte sedimentation rate ⩾15 mm in the first hour) had both high specificity and sensitivity—most had low specificity and sensitivity. There was little variation in either the likelihood ratios or the post-test probabilities between the variables. The lowest likelihood ratio (0.97) produced a post-test probability of 78% (95% CI: 74% to 81%) whereas the highest (1.73) had a post-test probability of 84% (95% CI: 81% to 87%). The pretest probability of having PID based on the presence of lower abdominal pain was 79% (95% CI: 76% to 82%). The discriminant analysis indicated that three variables significantly influenced the prediction of the presence of PID: erythrocyte sedimentation rate (p

Between November 2013 and August 2014, nine cases of verocytotoxin-producing Escherichia coli O117:H7 VT1 were confirmed in adult men. Further investigation using semi-structured interviews revealed that eight cases were United Kingdom (UK)-born men who have sex with men (MSM) who had sexually acquired infection in the UK. Most were HIV-positive with high numbers of sexual partners. This behavioural profile resembles that associated with the recent rapid increase in other sexually acquired infections in MSM.

Six outbreaks of infectious syphilis in the United Kingdom, ongoing since 2012, have been investigated among men who have sex with men (MSM) and heterosexual men and women aged under 25 years. Interventions included case finding and raising awareness among healthcare professionals and the public. Targeting at-risk populations was complicated as many sexual encounters involved anonymous partners. Outbreaks among MSM were influenced by the use of geospatial real-time networking applications that allow users to locate other MSM within close proximity.

A questionnaire based audit was used to evaluate the diagnosis and management of suspected pelvic inflammatory disease (PID) cases by general practitioners (GPs) in England and Wales. Responses were compared against a clinical management 'gold standard' devised by an independent group of GPs and specialists. Two hundred and ninety-seven (38%) of the 781 questionnaires were returned. Only 21 (7%) had all 'gold standard' sections correct. Diagnostic quality was significantly higher when the clinician was female compared with male (odds ratio [OR] = 2.34; 95% confidence limits [CL] = 1.19-4.63) and diagnostic quality increased with increasing socioeconomic deprivation. This is the first evaluation of the diagnosis and management of PID by GPs in England and Wales. The unusually poor response rate to a Medical Research Council General Practice Research Framework (MRC GPRF) study may reflect low disease awareness and sub-optimal management. This represents a fundamental obstacle to effective intervention and surveillance. Effective intervention will only be possible if diagnostic practice and management are improved substantially.

OBJECTIVE: To describe trends in seroprevalence of undiagnosed HIV-1 infection among attenders at 15 genitourinary medicine clinics in England, Wales, and Northern Ireland between 1990 and 1996. METHOD: Prospective, cross sectional sentinel serosurvey. Unlinked anonymous testing of remnant serum drawn for routine syphilis screening. RESULTS: In 1996, the seroprevalence of undiagnosed HIV-1 infection was 5% in homosexual men, 0.48% in heterosexual men, and 0.33% in heterosexual women. Between 1990 and 1996, there was a significant linear decrease in the seroprevalence of undiagnosed HIV-1 infection among homosexual and bisexual men within and outside London (p < 0.0001; p = 0.0141), equivalent to yearly decreases of 7.65% and 10.73% respectively. However, seroprevalence among homosexual and bisexual men under 25 years of age did not decline either inside or outside London. Seroprevalence among heterosexual men declined outside London (p < 0.005), equivalent to an average annual decrease of 14.54%. There was a significant increase among male heterosexuals inside London (p < 0.05) equivalent to a 8.09% increase per annum. Seroprevalence over time was unchanging among female heterosexuals both inside and outside London. Seroprevalence was significantly higher among those who injected drugs than those who did not report injecting in the following groups: homosexual and bisexual males within London (p < 0.005), male heterosexuals both within and outside London (p < 0.05; p < 0.05) and female heterosexuals within London (p < 0.05). CONCLUSIONS: The study highlights a significant burden of undiagnosed HIV-1 infection more than 15 years since the HIV epidemic began. Methods of offering HIV testing need to be reassessed to extend the practice of routinely testing for HIV in GUM clinics. HIV transmission among young homosexual and bisexual men continues. The contrasting trends between homosexual and bisexual men, injecting drug users, and heterosexuals attending GUM clinics indicate these groups should be considered separately. The substantial HIV seroprevalence in each group indicates that they should be priorities for targeted HIV prevention.

To give an overview of the latest latest trends in diagnoses made and services provided by genitourinary medicine (GUM) clinics in the UK.Aggregate data collected from the KC60 statistical returns for GUM clinics in England, Wales and Northern Ireland and disaggregate data collected using the STI Surveillance System for GUM Clinics in Scotland. These data were collated and numbers of diagnoses were adjusted for missing clinic data.Overall, numbers of new diagnoses of sexually transmitted infections (STIs) continued to rise in 2006. However, there was some evidence of improvement, with new diagnoses of gonorrhoea falling for the fourth successive year. Chlamydia continued to be the most common STI diagnosed in GUM clinics, and the sharp rise in new diagnoses over the last 10 years was most likely associated with an increase in testing volume and accuracy. The highest rates of STI diagnoses continued, in the main, to be among 16-24-year-olds, and there were some notable rises among this age group also: new diagnoses of genital herpes in teenage women rose by 16% in 2006. Improving the sexual health of men who have sex with men (MSM) must remain a priority, as the increase in numbers of new STI diagnoses among MSM over the past 10 years continued unabated into 2006. However, despite facing the challenge of reducing patient waiting times, there has been a considerable rise in sexual health screens and HIV tests being provided by GUM services, and this could, if sustained, result in significant improvements in sexual health in the coming years.

Objective To describe the contribution of primary care to the diagnosis and management of sexually transmitted infections in the United Kingdom, 1990-2000, in the context of increasing incidence of infections in genitourinary medicine clinics. Design Population based study. Setting UK primary care. Participants Patients registered in the UK general practice research database. Main outcome measures Incidence of diagnosed sexually transmitted infections in primary care and estimation of the proportion of major such infections diagnosed in primary care. Results An estimated 23.0% of chlamydia cases in women but only 5.3% in men were diagnosed and treated in primary care during 1998-2000, along with 49.2% cases of non-specific urethritis and urethral discharge in men and 5.7% cases of gonorrhoea in women and 2.9% in men. Rates of diagnosis in primary care rose substantially in the late 1990s. Conclusions A substantial and increasing number of sexually transmitted infections are diagnosed and treated in primary care in the United Kingdom, with sex ratios differing from those in genitourinary medicine clinics. Large numbers of men are treated in primary care for presumptive sexually transmitted infections.

A retrospective study was carried out to determine the recent epidemiology of ectopic pregnancy in England between the biennial years 1988/9 and 1992/3. The number of ectopic pregnancy cases were combined with numbers of conceptions and the rates analysed for trend over time. The incidence of ectopic pregnancy rose significantly (P=0·05) over this period. However, this could be entirely explained by increasing numbers of births in older women and a highly significant positive association was found between risk of ectopic pregnancy and maternal age (P

OBJECTIVE: To describe the recent epidemiology of genital Chlamydia trachomatis infection in England and Wales. DESIGN: Retrospective study of routinely available surveillance datasets and ad hoc prevalence studies. METHODS: Numbers of new cases of genital C trachomatis infection, obtained from the Department of Health and Welsh Office, were combined with the estimated mid-year resident population of England and Wales. Rates were analysed for trend over time using a log linear age period model in GLIM4. Ad hoc prevalence and case finding studies carried out over the past 20 years were critically assessed in terms of study design and testing methodologies. RESULTS: Attendance rates at genitourinary medicine (GUM) clinics were higher for women than men over the period 1989 to 1994 as were the number of laboratory reports. The highest rate of attendance (GUM clinic data) was for women aged 16 to 19 years. There was an overall significant linear decrease in the attendance rates over time for both men (p = 0.0172) and women (p = 0.0000) between 1989 and 1994. There was considerable variation in the prevalence of genital C trachomatis infection detected within different clinical settings, together with a substantial level of asymptomatic infection. CONCLUSIONS: Genital C trachomatis infection is broadly distributed throughout the sexually active population, with a substantial reservoir of asymptomatic infection among those generally perceived to be at low risk of a sexually transmitted infection. Young people, particularly women aged 16 to 19 years, are at highest risk of genital C trachomatis infection. This is of concern since younger women are more susceptible than older women to developing complications of chlamydial infection, such as pelvic inflammatory disease. The broad distribution of infection across all sexually active health service attenders and the high level of asymptomatic infection suggest that a new, screening based, approach to the control of genital C trachomatis infection is required. Recommendations are made as to the epidemiological research required to guide such work.

Background UK national guidelines will recommend that samples from all Chlamydia trachomatis (CT)-positive men who have sex with men (MSM) with proctitis and all asymptomatic CT-positive MSM with HIV should be tested for Lymphogranuloma venereum (LGV). Aim To investigate case characteristics and test outcomes of samples referred to the Sexually Transmitted Bacterial Reference Unit (STBRU) for LGV testing. Methods STBRU and GUMCADv2 data for 2014 in England were matched. Test numbers and outcomes for patients in different risk categories were compared to understand targeting of LGV testing. Results In 2014, 3,782 CT samples were tested for LGV, and 2,426 (64%) were matched to GUMCADv2. MSM accounted for 77% (1876/2426), heterosexual men 7% (178/2426) and women 11% (277/2426) of LGV tests (Table 1). Overall, LGV prevalence was 15% (366/2426), and was highest among HIV-positive MSM (33%; 230/692) and lowest in women (0.4%; 1/277). MSM accounted for 93% (342/366) of all positive samples, and 67% (230/342) of MSM with LGV were HIV-positive. In 2014, there were 3,434 CT diagnoses reported by GUM clinics in HIV-positive MSM, but we found only 692 HIV positive MSM had a CT sample tested for LGV, while 1,639 CT samples were from MSM without HIV, heterosexual men, or women, suggesting inadequate testing of CT samples from HIV-positive MSM. Conclusion Although miscoding in GUMCADv2 may partially explain some LGV testing in heterosexual men and women and HIV negative MSM, these data still suggest that LGV testing might be targeted more effectively to conserve resources and maximise identification of LGV.

Background/introduction The early recognition and investigation of outbreaks of sexually transmitted infections (STIs) is vital for preventing onward transmission. Aim(s)/objectives We sought to understand the facilitators and barriers to outbreak recognition in order to improve early detection. To review the recognition and management of a series of recent outbreaks of sexually transmitted infections in the United Kingdom (UK). To formulate guidance that will enable early recognition of outbreaks. Methods We interviewed clinicians and public health professionals who had been recently involved in identifying and managing STI outbreaks in the UK. Interviews were audio-recorded and transcribed verbatim. Transcripts were analysed using thematic analysis. Results Ten STI outbreaks were reviewed, generally by interviewing both a clinician and public health professional. Health advisers and sexual health consultants often noticed increases in cases with smaller clinics often identifying outbreaks more quickly than larger centres through “soft” signals such as increased partner notification, contacts named multiple times or cases with similar geographical location. Sometimes changing demographics first alerted staff. In two centres, increased ceftriaxone use prompted data review. Public Health England (PHE) regional teams identified two outbreaks: one through analysis of the national dataset (GUMCAD); and one via the formal Infectious Diseases Notifications process. Discussion/conclusion “Soft” signals, picked up in smaller clinics were less readily noticed in larger services. Although quarterly retrospective collation of electronic data by PHE currently limits their role, electronic records should be better exploited locally within services.