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1.
J Immigr Minor Health ; 24(6): 1459-1468, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35415766

RESUMEN

BACKGROUND: African immigrants in the U.S. are more likely to have a late HIV diagnosis than U.S.-born people, potentially leading to onward transmission. We sought to determine the proportion of African-born people living with HIV (APLWH) who (1) had tested HIV negative prior to diagnosis, and (2) likely acquired HIV in the U.S. METHODS: We interviewed APLWH from 2014 to 2017 and estimated the proportion with post-migration HIV acquisition based on clinical data, HIV testing history, immigration date, and behavioral data. RESULTS: Of 179 participants, 113 (63%) were women. Less than half (44%) reported a negative HIV test prior to diagnosis. Among 142 (79%) participants with sufficient data to evaluate post-migration HIV acquisition, we estimate that 29% acquired HIV post-migration. Most APLWH acquire HIV prior to immigration. DISCUSSION: Approximately one-quarter of APLWH acquire HIV post-migration and HIV testing is infrequent, highlighting the need for prevention efforts for African immigrants in the U.S.


Asunto(s)
Emigrantes e Inmigrantes , Infecciones por VIH , Femenino , Humanos , Masculino , Infecciones por VIH/prevención & control , Población Negra , Emigración e Inmigración , Encuestas y Cuestionarios
3.
PLoS Med ; 16(10): e1002924, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31577792

RESUMEN

BACKGROUND: Timely diagnosis of infant HIV infection is essential for antiretroviral therapy (ART) initiation. In a randomized controlled trial, we found the Texting Improves Testing (TextIT) intervention (a theory-based text messaging system) to be efficacious for improving infant HIV testing rates and maternal retention in prevention of mother-to-child HIV transmission (PMTCT) programs. Using an implementation science approach, we aimed to evaluate real-world effectiveness of the intervention. METHODS AND FINDINGS: In a pragmatic, cluster-randomized, stepped-wedge trial with 2 time periods of observation, we randomly allocated 10 clinics to begin implementing the intervention immediately and 10 clinics to begin implementing 6 months later. To approximate real-world conditions, inclusion criteria were broad. Women at clinics implementing the intervention received up to 14 text messages during pregnancy and after delivery and had the option to respond to text messages, call, or send inquiry text messages to a designated clinic phone. The primary outcomes were infant HIV testing and maternal retention in care during the first 8 weeks after delivery. We used modified Poisson regression with robust variance estimation to estimate the relative risk and 95% confidence intervals (CIs). Generalized estimating equations were applied on individual-level data to account for clustering by site. Between February 2015 and December 2016, 4,681 women were assessed for study participation, and 2,515 were included. Participant characteristics at enrollment did not differ by study arm. Overall median age was 27 years (interquartile range [IQR] 23-30), median gestational age was 30 weeks (IQR 28-34), 99% were receiving ART, and 87% who enrolled during intervention phases owned a phone. Of 2,326 infants analyzed, 1,466 of 1,613 (90.9%) in the intervention group and 609 of 713 (85.4%) in the control group met the primary outcome of HIV virologic testing performed before 8 weeks after birth (adjusted relative risk [aRR] 1.03; 95% CI 0.97-1.10; P = 0.3). Of 2,472 women analyzed, 1,548 of 1,725 (90%) in the intervention group and 571 of 747 (76%) in the control group met the primary outcome of retention in care during the first 8 weeks after delivery (aRR 1.12; 95% CI 0.97-1.30; P = 0.1). This study had two main limitations. Staff at all facilities were aware of ongoing observation, which may have contributed to increased rates of infant HIV testing and maternal retention in care at both intervention and control facilities, and programmatic initiatives to improve maternal and infant retention in care were ongoing at all facilities at the time of this study, which likely limited the ability to demonstrate effectiveness of the trial intervention. CONCLUSIONS: In this study, a larger proportion of infants in the intervention group received HIV testing compared with the control group, but the difference was small and not statistically significant. There was also a nonsignificant increase in maternal postpartum retention in the intervention periods. Despite the lack of a significant effect of the intervention, key lessons emerged, both for strengthening PMTCT and for implementation research in general. Perhaps most important, improving the implementation of usual care may have been sufficient to substantially improve infant HIV testing rates. TRIAL REGISTRATION: ClinicalTrials.gov Trial Number NCT02350140.


Asunto(s)
Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Cumplimiento de la Medicación , Envío de Mensajes de Texto , Adulto , Fármacos Anti-VIH/uso terapéutico , Análisis por Conglomerados , Femenino , Promoción de la Salud , Humanos , Kenia , Distribución de Poisson , Embarazo , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Desarrollo de Programa , Sistemas Recordatorios , Resultado del Tratamiento , Adulto Joven
4.
PLoS One ; 14(1): e0209064, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30673710

RESUMEN

INTRODUCTION: Interactive computer-based interventions (ICBI) are potentially scalable tools for use in real-world settings to promote sexual health and prevent sexually transmitted infections (STIs) and unintended pregnancies. We developed and assessed the feasibility and acceptability of an ICBI for promoting adolescent and young adult sexual health, and the effectiveness of the intervention in reducing unprotected sex, STIs, and unintended pregnancy. METHODS: This pilot randomized controlled trial enrolled STI Clinic patients, in Seattle, Washington, who were 14-24 years old and reported unprotected vaginal sex during the last 2 months. Both the control and intervention group used a computerized survey to enter their sexual health and only the intervention group received the ICBI. The ICBI included personalized sexual health feedback from a physician avatar; instructive video modules advocating sexual health; and identification of one behavior to change. At 3-month follow-up, participants reported on interim sexual and pregnancy histories and underwent repeat STI testing. We assessed intervention impact on unprotected vaginal sex, number of sexual partners, incident STIs, and unintended pregnancy. RESULTS: Of 272 participants, 242 (89%) completed the study, of whom 65% were female. While these findings did not reach statistical significance, at 3-month follow-up, the intervention group reported a 33% lower rate of unprotected vaginal sex (no condom use) [IRR = 0.67, 95% CI: 0.44-1.02]; 29% fewer sex partners [IRR = 0.71, 95% CI: 0.50-1.03]; and 48% fewer STIs [IRR = 0.52, 95% CI: 0.25-1.08] when compared to the control group. Similarly, as compared to the control group, intervention females reported a lower rate of unprotected vaginal sex (no birth control) [IRR = 0.80, 95% CI: 0.47-1.35] and half as many unintended pregnancies (n = 5) versus control females (n = 10) [IRR = 0.51, 95% CI: 0.17-1.58]. In exploratory analyses, intervention females reported fewer partners [IRR = 0.71, 95% CI: 0.50-1.00] and a significantly lower rate of vaginal sex without condoms [IRR = 0.50, 95% CI: 0.30-0.85]. CONCLUSION: The intervention was acceptable to both males and females, and at 3-month follow-up, there were non-significant reductions in risk behavior for all outcomes. Among females, exploratory analysis showed a significant reduction in vaginal sex without condoms.


Asunto(s)
Sexo Seguro , Salud Sexual/educación , Adolescente , Adulto , Condones/estadística & datos numéricos , Femenino , Infecciones por VIH/prevención & control , Humanos , Masculino , Proyectos Piloto , Asunción de Riesgos , Conducta Sexual/estadística & datos numéricos , Enfermedades de Transmisión Sexual/prevención & control , Adulto Joven
5.
J Immigr Minor Health ; 21(3): 533-539, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29946866

RESUMEN

Research is critical for developing HIV and tuberculosis (TB) programming for U.S. African-born communities, and depends on successful recruitment of African-born people. From January 2014 to June 2016, we recruited African-born people for HIV and TB research in King County, Washington. We compared the characteristics of study participants and the underlying populations of interest, and assessed recruitment strategies. Target enrollment for the HIV study was 167 participants; 51 participants (31%) were enrolled. Target enrollment for the TB study was 218 participants; 38 (17%) were successfully recruited. Of 249 prior TB patients we attempted to contact by phone, we reached 72 (33%). Multiple recruitment strategies were employed with variable impact. Study participants differed from the underlying populations in terms of gender, country of origin and language. Inequities in research participation and in meaningful opportunities for such participation may exacerbate existing health disparities.


Asunto(s)
Investigación Biomédica/métodos , Emigrantes e Inmigrantes/estadística & datos numéricos , Infecciones por VIH/etnología , Selección de Paciente , Tuberculosis/etnología , Adolescente , Adulto , África/etnología , Estudios Transversales , Femenino , Humanos , Lenguaje , Masculino , Persona de Mediana Edad , Factores Sexuales , Factores Socioeconómicos , Estados Unidos/epidemiología , Washingtón/epidemiología , Adulto Joven
6.
PLoS One ; 13(6): e0199952, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29944725

RESUMEN

[This corrects the article DOI: 10.1371/journal.pone.0192413.].

7.
PLoS One ; 13(2): e0192413, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29489839

RESUMEN

BACKGROUND: Since the site of human subjects research has public health, regulatory, ethical, economic, and social implications, we sought to determine the global distribution and migration of clinical research using an open-access trial registry. METHODS: We obtained individual clinical trial data including location of trial sites, dates of operation, funding source (United States government, pharmaceutical industry, or organization), and clinical study phase (1, 1/2, 2, 2/3, or 3) from ClinicalTrials.gov. We used the World Bank's classification of each country's economic development status ["High Income and a Member of the Organization for Economic Co-operation and Development (OECD)", "High Income and Non-Member of the OECD", "Upper-Middle Income", "Lower-Middle Income", or "Low Income"] and United Nations Populations Division data for country-specific population estimates. We analyzed data from calendar year 2006 through 2012 by number of clinical trial sites, cumulative trial site-years, trial density (trial site-years/106 population), and annual growth rate (%) for each country, and by development category, funding source, and clinical study phase. RESULTS: Over a 7-year period, 89,647 clinical trials operated 784,585 trial sites in 175 countries, contributing 2,443,850 trial site-years. Among those, 652,200 trial sites (83%) were in 25 high-income OECD countries, while 37,195 sites (5%) were in 91 lower-middle or low-income countries. Trial density (trial site-years/106 population) was 540 in the United States, 202 among other high-income OECD countries (excluding the United States), 81 among high-income non-OECD countries, 41 among upper-middle income countries, 5 among lower-middle income countries, and 2 among low-income countries. Annual compound growth rate was positive (ranging from 0.8% among low-income countries to 14.7% among lower-middle income countries) among all economic groups, except the United States (-0.5%). Overall, 29,191 trials (33%) were funded by industry, 4,059 (5%) were funded by the United States government, and 56,397 (63%) were funded by organizations. Countries with emerging economies (low- and middle-income) operated 19% of phase 3 trial sites, as compared to only 6% of phase 1 trial sites. CONCLUSION: Human clinical research remains concentrated in high-income countries, but operational clinical trial sites, particularly for phase 3 trials, may be migrating to low- and middle-income countries with emerging economies.


Asunto(s)
Ensayos Clínicos como Asunto , Internacionalidad
9.
PLoS One ; 13(12): e0209854, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30596746

RESUMEN

OBJECTIVE: Text messages significantly improve uptake of infant HIV testing in clinical trial contexts. Women who were excluded from a randomized trial in Kenya were followed to create a comparison between women who were enrolled and did not receive the study SMS intervention and women who were screened but not enrolled. DESIGN: Parallel-cohort randomized controlled trial analysis. METHODS: We compared time to infant HIV testing between women in three groups: the Trial SMS group, the Trial Control group, and the Comparison Cohort comprised of women who were screened but not enrolled. RESULTS: Of the 1,115 women screened, 388 (35%) were eligible for trial enrollment, and were randomized to receive either intervention text messages (Trial SMS; N = 195) or continue usual care (Trial Control; N = 193). Among 727 women not enrolled in the study (Comparison Cohort), we obtained infant HIV testing data from clinic records for 510 (70%). The cumulative probability of infant HIV testing was highest in the Trial SMS group (92.0%; 95% CI 87.5-95.3), followed by the Trial Control group (85.1%; 95% CI 79.5-89.8), and lowest among women in the Comparison Cohort (43.4%; 95% CI 39.2-47.8). CONCLUSIONS: Both the Trial SMS group and the Trial Control group were significantly more likely to have their infants tested for HIV compared to the Comparison Cohort, providing evidence of a "clinical trial effect." This analysis suggests that SMS interventions should be implemented as an adjunct to consistent and engaged delivery of basic health services.


Asunto(s)
Infecciones por VIH/diagnóstico , Envío de Mensajes de Texto , Adolescente , Adulto , Femenino , Humanos , Lactante , Kenia , Tamizaje Masivo , Adulto Joven
10.
Clin Infect Dis ; 66(5): 712-718, 2018 02 10.
Artículo en Inglés | MEDLINE | ID: mdl-29045604

RESUMEN

Background: Antimicrobial-resistant Neisseria gonorrhoeae is a major public health threat. The Centers for Disease Control and Prevention (CDC) recommends ceftriaxone 250 mg plus azithromycin (AZM) 1 g for gonorrhea treatment. Resistance to AZM could affect gonorrhea control efforts. Methods: Using gonococcal isolates collected at the Public Health-Seattle & King County (PHSKC) Sexually Transmitted Disease (STD) Clinic from 2012 to 2016, focusing on 2014-2016, we compared cases with the CDC AZM alert value minimum inhibitory concentration (MIC) (≥2 µg/mL) to those with AZM MIC ≤1 µg/mL, antimicrobial susceptibility profiles and clinical outcomes. Results: In 2012 and 2013, none of the 263 patients from whom we isolated N. gonorrhoeae from the urethra were infected with organisms with an AZM MIC ≥2 µg/mL. Between 2014 and 2016, 4.4% of 926 gonorrhea cases demonstrated reduced susceptibility to AZM; 93% of these cases occurred among men who have sex with men (MSM). Among MSM, 5.0% of 2014-2016 cases demonstrated reduced susceptibility to AZM. No AZM alert value isolates had concomitant cephalosporin resistance. There were 2 potential treatment failures: 1 pharyngeal infection treated with AZM 2 g alone, and 1 pharyngeal infection that persisted after study drug. Conclusions: Among MSM with gonorrhea in Seattle, 5% have gonorrhea with reduced susceptibility to AZM. The World Health Organization recommends changing treatment guidelines when >5% of isolates are resistant to a recommended drug. The emergence of resistant AZM gonorrhea should prompt reconsideration of current treatment recommendations, and highlights the need for new therapies for gonorrhea.


Asunto(s)
Antibacterianos/uso terapéutico , Azitromicina/uso terapéutico , Susceptibilidad a Enfermedades/epidemiología , Gonorrea/tratamiento farmacológico , Gonorrea/epidemiología , Neisseria gonorrhoeae/efectos de los fármacos , Adulto , Ceftriaxona/uso terapéutico , Resistencia a las Cefalosporinas , Farmacorresistencia Bacteriana , Homosexualidad Masculina , Humanos , Masculino , Pruebas de Sensibilidad Microbiana , Minorías Sexuales y de Género , Washingtón/epidemiología
11.
Lancet ; 391(10125): 1108-1120, 2018 03 17.
Artículo en Inglés | MEDLINE | ID: mdl-29179954

RESUMEN

The World Bank is publishing nine volumes of Disease Control Priorities, 3rd edition (DCP3) between 2015 and 2018. Volume 9, Improving Health and Reducing Poverty, summarises the main messages from all the volumes and contains cross-cutting analyses. This Review draws on all nine volumes to convey conclusions. The analysis in DCP3 is built around 21 essential packages that were developed in the nine volumes. Each essential package addresses the concerns of a major professional community (eg, child health or surgery) and contains a mix of intersectoral policies and health-sector interventions. 71 intersectoral prevention policies were identified in total, 29 of which are priorities for early introduction. Interventions within the health sector were grouped onto five platforms (population based, community level, health centre, first-level hospital, and referral hospital). DCP3 defines a model concept of essential universal health coverage (EUHC) with 218 interventions that provides a starting point for country-specific analysis of priorities. Assuming steady-state implementation by 2030, EUHC in lower-middle-income countries would reduce premature deaths by an estimated 4·2 million per year. Estimated total costs prove substantial: about 9·1% of (current) gross national income (GNI) in low-income countries and 5·2% of GNI in lower-middle-income countries. Financing provision of continuing intervention against chronic conditions accounts for about half of estimated incremental costs. For lower-middle-income countries, the mortality reduction from implementing the EUHC can only reach about half the mortality reduction in non-communicable diseases called for by the Sustainable Development Goals. Full achievement will require increased investment or sustained intersectoral action, and actions by finance ministries to tax smoking and polluting emissions and to reduce or eliminate (often large) subsidies on fossil fuels appear of central importance. DCP3 is intended to be a model starting point for analyses at the country level, but country-specific cost structures, epidemiological needs, and national priorities will generally lead to definitions of EUHC that differ from country to country and from the model in this Review. DCP3 is particularly relevant as achievement of EUHC relies increasingly on greater domestic finance, with global developmental assistance in health focusing more on global public goods. In addition to assessing effects on mortality, DCP3 looked at outcomes of EUHC not encompassed by the disability-adjusted life-year metric and related cost-effectiveness analyses. The other objectives included financial protection (potentially better provided upstream by keeping people out of the hospital rather than downstream by paying their hospital bills for them), stillbirths averted, palliative care, contraception, and child physical and intellectual growth. The first 1000 days after conception are highly important for child development, but the next 7000 days are likewise important and often neglected.


Asunto(s)
Atención a la Salud/organización & administración , Salud Global , Prioridades en Salud , Cobertura Universal del Seguro de Salud , Humanos
12.
Sex Transm Infect ; 93(4): 247-252, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28130505

RESUMEN

OBJECTIVES: Quality concerns in STI service delivery and missed opportunities for integration with HIV testing and prevention services in South Africa have been well documented. This national evaluation aimed to evaluate current utilisation and adherence to national STI guidelines, including partner notification and integration with HIV services, for diagnosis and management of STIs. METHODS: Facility surveys assessed infrastructure and resource availability, and standardised patient (SP) assessments evaluated quality of STI care in 50 public clinics in nine provinces in South Africa. The primary outcome was the proportion of SPs receiving essential STI care, defined as: offered an HIV test, condoms, partner notification counselling and correct syndromic treatment. Weighted proportions were generated, and SP findings were compared by gender using χ2 tests with Rao-Scott correction. RESULTS: More than 80% of facilities reported medications in stock, with the exceptions of oral cefixime (48.3%), oral erythromycin (75.1%) and paediatric syrups. Among 195 SP encounters, 18.7% (95% CI 10.7% to 30.5%) received all hypothesised essential STI services: offered HIV test (67.1%), offered condoms (31.4%), partner notification counselling (70.2%) and recommended syndromic treatment (60.7%). Men were more likely than women to be offered all services (25.1% vs 12.3%, p=0.023), recommended treatment (70.7% vs 50.9%, p=0.013) and partner notification counselling (79.9% vs 60.6%, p=0.020). Only 6.3% of providers discussed male circumcision with male SPs, and 26.3% discussed family planning with female SPs. CONCLUSIONS: This evaluation of STI services across South Africa found gaps in the availability of medications, adherence to STI guidelines, condom provision and prevention messaging. Limited integration with HIV services for this high-risk population was a missed opportunity. Quality of STI care should continue to be monitored, and interventions to improve quality should be prioritised as part of national strategic HIV and primary healthcare agendas.


Asunto(s)
Adhesión a Directriz , Simulación de Paciente , Atención Primaria de Salud/normas , Calidad de la Atención de Salud/normas , Vigilancia de Guardia , Enfermedades de Transmisión Sexual/prevención & control , Instituciones de Atención Ambulatoria/provisión & distribución , Protocolos Clínicos/normas , Condones/provisión & distribución , Estudios Transversales , Femenino , Prioridades en Salud , Necesidades y Demandas de Servicios de Salud , Investigación sobre Servicios de Salud , Humanos , Masculino , Sector Público , Sudáfrica
13.
J Assoc Nurses AIDS Care ; 28(1): 154-164, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27769734

RESUMEN

Sexually transmitted infection (STI) service delivery in the context of integrated care and the South African HIV epidemic is complex. We aimed to document STI care and HIV testing processes in public health clinics in South Africa, revealing bottlenecks to patient flow and identifying opportunities for improvement. Clinic mapping, with semi-structured interviews and clinic observation, was conducted with facility representatives at three clinical sentinel surveillance sites. Facility surveys assessed patient volume and staffing. Identified challenges were associated with staffing allocations, and disruptions in patient flow resulted from poor clinic layout, inadequate lighting, and limited allocation of space for HIV testing and physical examination. Recommendations include staffing adjustments, reorganization of space to allow for designated service and waiting areas, sufficient supplies, and improved lighting. The facility reorganization component of South Africa's Ideal Clinic initiative provides a key opportunity for enacting many of these recommendations.


Asunto(s)
Prestación Integrada de Atención de Salud/organización & administración , Vigilancia de Guardia , Enfermedades de Transmisión Sexual/diagnóstico , Adulto , Anciano , Femenino , Infecciones por VIH/diagnóstico , Humanos , Entrevistas como Asunto , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Investigación Cualitativa , Enfermedades de Transmisión Sexual/epidemiología , Sudáfrica/epidemiología
14.
MMWR Surveill Summ ; 65(7): 1-19, 2016 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-27414503

RESUMEN

PROBLEM/CONDITION: Gonorrhea is the second most commonly reported notifiable disease in the United States; 350,062 gonorrhea cases were reported in 2014. Sexually transmitted infections caused by Neisseria gonorrhoeae are a cause of pelvic inflammatory disease in women, which can lead to serious reproductive complications including tubal infertility, ectopic pregnancy, and chronic pelvic pain. Prevention of sequelae and of transmission to sexual partners relies largely on prompt detection and effective antimicrobial treatment. However, treatment has been compromised by the absence of routine antimicrobial susceptibility testing in clinical care and evolution of antimicrobial resistance to the antibiotics used to treat gonorrhea. PERIOD COVERED: 2014. DESCRIPTION OF THE SYSTEM: The Gonococcal Isolate Surveillance Project (GISP) was established in 1986 as a sentinel surveillance system to monitor trends in antimicrobial susceptibilities of N. gonorrhoeae strains in the United States. Each month, N. gonorrhoeae isolates are collected from up to the first 25 men with gonococcal urethritis attending each of the participating sexually transmitted disease (STD) clinics at 27 sites. The number of participating sites has varied over time (21-30 per year). Selected demographic and clinical data are abstracted from medical records. Isolates are tested for antimicrobial susceptibility using agar dilution at one of five regional laboratories. RESULTS: A total of 5,093 isolates were collected in 2014. Of these, 25.3% were resistant to tetracycline, 19.2% to ciprofloxacin, and 16.2% to penicillin (plasmid-based, chromosomal, or both). Reduced azithromycin susceptibility (Azi-RS) (defined as minimum inhibitory concentration [MIC] ≥2.0 µg/mL) increased from 0.6% in 2013 to 2.5% in 2014. The increase occurred in all geographic regions, but was greatest in the Midwest, and among all categories of sex of sex partners (men who have sex with men [MSM], men who have sex with men and women [MSMW], and men who have sex with women [MSW]). No Azi-RS isolates exhibited reduced cefixime or ceftriaxone susceptibility (Cfx-RS and Cro-RS, respectively). The prevalence of Cfx-RS (MIC ≥0.25 µg/mL) increased from 0.1% in 2006 to 1.4% in both 2010 and 2011, decreased to 0.4% in 2013, and increased to 0.8% in 2014. Cro-RS (MIC ≥0.125 µg/mL) increased following a similar pattern but at lesser percentages (increased from 0.1% in 2008 to 0.4% in 2011 and decreased to 0.1% in 2013 and 2014). The percentage of isolates resistant to tetracycline, ciprofloxacin, penicillin, or all three antimicrobials, was greater in isolates from MSM than from MSW. INTERPRETATION: This is the first report to present comprehensive surveillance data from GISP and summarize gonococcal susceptibility over time, as well as underscore the history and public health implications of emerging cephalosporin resistance. Antimicrobial susceptibility patterns vary by geographic region within the United States and by sex of sex partner. Because dual therapy with ceftriaxone plus azithromycin is the only recommended gonorrhea treatment, increases in azithromycin and cephalosporin MICs are cause for concern that resistance to these antimicrobial agents might be emerging. It is unclear whether increases in the percentage of isolates with Azi-RS mark the beginning of a trend. The percentage of isolates with elevated cefixime MICs increased during 2009-2010, then decreased during 2012-2013 after treatment recommendations were changed in 2010 to recommend dual therapy (with a cephalosporin and a second antibiotic) and a higher dosage of ceftriaxone. Subsequently, the treatment recommendations were changed again in 2012 to no longer recommend cefixime as part of first-line therapy (leaving ceftriaxone-based dual therapy as the only recommended therapy). Despite the MIC decrease (i.e., trend of improved cefixime susceptibility) during 2012-2013, the increase in the number of strains with Cfx-RS in 2014 underscores the potential threat of cephalosporin-resistant N. gonorrhoeae. PUBLIC HEALTH ACTION: The National Strategy for Combating Antibiotic-Resistant Bacteria identifies prevention, rapid detection, and control of outbreaks of ceftriaxone-resistant N. gonorrhoeae infection as a priority for U.S. PUBLIC HEALTH ACTION: Antimicrobial susceptibility surveillance is conducted to guide development of treatment recommendations for effective therapy and prevention of complications from and transmission of gonorrhea. Federal agencies can use GISP data to develop national treatment recommendations and set research and prevention priorities. Local and state health departments can use GISP data to determine allocation of STD prevention services and resources, guide prevention planning, and communicate best treatment practices to health care providers. Continued surveillance, appropriate treatment, development of new antibiotics, and prevention of transmission remain the best strategies to reduce gonorrhea incidence and morbidity.


Asunto(s)
Antibacterianos/farmacología , Farmacorresistencia Bacteriana , Gonorrea/tratamiento farmacológico , Neisseria gonorrhoeae/efectos de los fármacos , Vigilancia de Guardia , Ciprofloxacina/farmacología , Femenino , Gonorrea/epidemiología , Humanos , Masculino , Pruebas de Sensibilidad Microbiana , Neisseria gonorrhoeae/aislamiento & purificación , Penicilinas/farmacología , Tetraciclina/farmacología , Estados Unidos/epidemiología
15.
Mol Cell Proteomics ; 15(7): 2338-55, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-27141096

RESUMEN

Expanding efforts to develop preventive gonorrhea vaccines is critical because of the dire possibility of untreatable gonococcal infections. Reverse vaccinology, which includes genome and proteome mining, has proven very successful in the discovery of vaccine candidates against many pathogenic bacteria. However, progress with this approach for a gonorrhea vaccine remains in its infancy. Accordingly, we applied a comprehensive proteomic platform-isobaric tagging for absolute quantification coupled with two-dimensional liquid chromatography and mass spectrometry-to identify potential gonococcal vaccine antigens. Our previous analyses focused on cell envelopes and naturally released membrane vesicles derived from four different Neisseria gonorrhoeae strains. Here, we extended these studies to identify cell envelope proteins of N. gonorrhoeae that are ubiquitously expressed and specifically induced by physiologically relevant environmental stimuli: oxygen availability, iron deprivation, and the presence of human serum. Together, these studies enabled the identification of numerous potential gonorrhea vaccine targets. Initial characterization of five novel vaccine candidate antigens that were ubiquitously expressed under these different growth conditions demonstrated that homologs of BamA (NGO1801), LptD (NGO1715), and TamA (NGO1956), and two uncharacterized proteins, NGO2054 and NGO2139, were surface exposed, secreted via naturally released membrane vesicles, and elicited bactericidal antibodies that cross-reacted with a panel of temporally and geographically diverse isolates. In addition, analysis of polymorphisms at the nucleotide and amino acid levels showed that these vaccine candidates are highly conserved among N. gonorrhoeae strains. Finally, depletion of BamA caused a loss of N. gonorrhoeae viability, suggesting it may be an essential target. Together, our data strongly support the use of proteomics-driven discovery of potential vaccine targets as a sound approach for identifying promising gonococcal antigens.


Asunto(s)
Proteínas de la Membrana Bacteriana Externa/metabolismo , Neisseria gonorrhoeae/inmunología , Proteómica/métodos , Antígenos Bacterianos/genética , Antígenos Bacterianos/inmunología , Proteínas de la Membrana Bacteriana Externa/genética , Proteínas de la Membrana Bacteriana Externa/inmunología , Vacunas Bacterianas/inmunología , Cromatografía Liquida , Clonación Molecular , Gonorrea/inmunología , Humanos , Espectrometría de Masas , Neisseria gonorrhoeae/genética
17.
BMC Health Serv Res ; 16: 61, 2016 Feb 17.
Artículo en Inglés | MEDLINE | ID: mdl-26888178

RESUMEN

BACKGROUND: Assessing safety outcomes is critical to inform optimal scale-up of voluntary medical male circumcision (VMMC) programs. Clinical trials demonstrated adverse event (AE) rates from 1.5 to 8 %, but we have limited data on AEs from VMMC programs. METHODS: A group problem-solving, quality improvement (QI) project involving retrospective chart audits, case-conference AE classification, and provider training was conducted at a VMMC clinic in Malawi. For each identified potential AE, the timing, assessment, treatment, and resolution was recorded, then a clinical team classified each event for type and severity. During group discussions, VMMC providers were queried regarding lessons learned and challenges in providing care. After baseline evaluation, clinicians and managers initiated a QI plan to improve AE assessment and management. A repeat audit 6 months later used similar methods to assess the proportions and severity of AEs after the QI intervention. RESULTS: Baseline audits of 3000 charts identified 418 possible AEs (13.9 %), including 152 (5.1 %) excluded after determination of provider misclassification. Of the 266 remaining AEs, the team concluded that 257 were procedure-related (8.6 AEs per 100 VMMC procedures), including 6 (0.2 %) classified as mild, 218 (7.3 %) moderate, and 33 (1.1 %) severe. Structural factors found to contribute to AE rates and misclassification included: provider management of post-operative inflammation was consistent with national guidelines for urethral discharge; available antibiotics were from the STI formulary; providers felt well-trained in surgical skills but insecure in post-operative assessment and care. After implementation of the QI plan, a repeat process evaluating 2540 cases identified 115 procedure-related AEs (4.5 AEs per 100 VMMC procedures), including 67 (2.6 %) classified as mild, 28 (1.1 %) moderate, and 20 (0.8 %) severe. Reports of AEs decreased by 48 % (from 8.6 to 4.5 per 100 VMMC procedures, p < 0.001). Reports of moderate-plus-severe (program-reportable) AEs decreased by 75 % (from 8.4 to 1.9 per 100 VMMC procedures, p < 0.001). CONCLUSIONS: AE rates from our VMMC program implementation site were within the range of clinical trial experiences. A group problem-solving QI intervention improved post-operative assessment, clinical management, and AE reporting. Our QI process significantly improved clinical outcomes and led to more accurate reporting of overall and program-reportable AEs.


Asunto(s)
Circuncisión Masculina/normas , Circuncisión Masculina/efectos adversos , Circuncisión Masculina/clasificación , Infecciones por VIH/prevención & control , Humanos , Malaui , Masculino , Auditoría Médica , Seguridad del Paciente , Complicaciones Posoperatorias/prevención & control , Mejoramiento de la Calidad , Estudios Retrospectivos , Programas Voluntarios/normas
18.
Int J STD AIDS ; 27(5): 402-10, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25941053

RESUMEN

This study aims to evaluate condom use, sexually transmitted infection (STI) screening, and knowledge of STI symptoms among female sex workers in Peru associated with sex work venues and a community randomised trial of STI control. One component of the Peru PREVEN intervention conducted mobile-team outreach to female sex workers to reduce STIs and increase condom use and access to government clinics for STI screening and evaluation. Prevalence ratios were calculated using multivariate Poisson regression models with robust standard errors, clustering by city. As-treated analyses were conducted to assess outcomes associated with reported exposure to the intervention. Care-seeking was more frequent in intervention communities, but differences were not statistically significant. Female sex workers reporting exposure to the intervention had a significantly higher likelihood of condom use, STI screening at public health clinics, and symptom recognition compared to those not exposed. Compared with street- or bar-based female sex workers, brothel-based female sex workers reported significantly higher rates of condom use with last client, recent screening exams for STIs, and HIV testing. Brothel-based female sex workers also more often reported knowledge of STIs and recognition of STI symptoms in women and in men. Interventions to promote STI detection and prevention among female sex workers in Peru should consider structural or regulatory factors related to sex work venues.


Asunto(s)
Condones/estadística & datos numéricos , Conocimientos, Actitudes y Práctica en Salud , Tamizaje Masivo/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Trabajadores Sexuales/psicología , Enfermedades de Transmisión Sexual/diagnóstico , Adolescente , Adulto , Femenino , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Perú/epidemiología , Prevalencia , Trabajo Sexual , Trabajadores Sexuales/estadística & datos numéricos , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/prevención & control
19.
Sex Transm Dis ; 42(8): 457-62, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26165438

RESUMEN

INTRODUCTION: As part of an implementation research study on the feasibility of implementing point-of-care tests for syphilis in Peru, we collected information on partner treatment of syphilis-seropositive pregnant women and explored womens' and health providers' knowledge and practices regarding partner notification and treatment (PNT) for maternal syphilis. METHODS: Mixed methods were used to collect information. Quantitative data were collected from consecutive pregnant women with a positive point-of-care test for syphilis. A subset participated in qualitative interviews. Health providers completed a survey on knowledge, attitudes, and behaviors about PNT. RESULTS: Of the 144 seropositive women, 46 (31.9%) had concurrent patient-partner treatment. From the 98 seropositive women whose partner was not at the clinic, 33 partners (33.7%) received at least 1 dose of penicillin. The multivariate model showed that screening at the antenatal care clinic (prevalence ratio [PR], 3.84), first sex after age 16 years (PR, 0.55), and lifetime number of partners (PR, 0.55 for 2-4 partners; PR, 0.77 for >4 partners) were independently associated with treatment for the partner. Women identified the provider as key for the PNT, but less than half of the providers reported having been trained for counseling and recognize the need for defining the procedures and standardization for PNT. Providers and women both reported that men may not come for treatment once notified because of fear, distrust of the system, or barriers associated with the services. CONCLUSION: There is a need for better training of health providers, for clear and standardized processes for partner counseling, registration and follow-up, and an opportunity to introduce new technologies.


Asunto(s)
Trazado de Contacto , Complicaciones Infecciosas del Embarazo/epidemiología , Mujeres Embarazadas , Atención Prenatal , Sífilis/transmisión , Adulto , Estudios de Factibilidad , Femenino , Humanos , Perú/epidemiología , Sistemas de Atención de Punto , Embarazo , Parejas Sexuales , Encuestas y Cuestionarios , Sífilis/prevención & control
20.
PLoS Med ; 12(1): e1001777, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25590331

RESUMEN

BACKGROUND: Expedited partner therapy (EPT), the practice of treating the sex partners of persons with sexually transmitted infections without their medical evaluation, increases partner treatment and decreases gonorrhea and chlamydia reinfection rates. We conducted a stepped-wedge, community-level randomized trial to determine whether a public health intervention promoting EPT could increase its use and decrease chlamydia test positivity and gonorrhea incidence in women. METHODS AND FINDINGS: The trial randomly assigned local health jurisdictions (LHJs) in Washington State, US, into four study waves. Waves instituted the intervention in randomly assigned order at intervals of 6-8 mo. Of the state's 25 LHJs, 24 were eligible and 23 participated. Heterosexual individuals with gonorrhea or chlamydial infection were eligible for the intervention. The study made free patient-delivered partner therapy (PDPT) available to clinicians, and provided public health partner services based on clinician referral. The main study outcomes were chlamydia test positivity among women ages 14-25 y in 219 sentinel clinics, and incidence of reported gonorrhea in women, both measured at the community level. Receipt of PDPT from clinicians was evaluated among randomly selected patients. 23 and 22 LHJs provided data on gonorrhea and chlamydia outcomes, respectively. The intervention increased the percentage of persons receiving PDPT from clinicians (from 18% to 34%, p < 0.001) and the percentage receiving partner services (from 25% to 45%, p < 0.001). Chlamydia test positivity and gonorrhea incidence in women decreased over the study period, from 8.2% to 6.5% and from 59.6 to 26.4 per 100,000, respectively. After adjusting for temporal trends, the intervention was associated with an approximately 10% reduction in both chlamydia positivity and gonorrhea incidence, though the confidence bounds on these outcomes both crossed one (chlamydia positivity prevalence ratio = 0.89, 95% CI 0.77-1.04, p = 0.15; gonorrhea incidence rate ratio = 0.91, 95% CI .71-1.16, p = 0.45). Study findings were potentially limited by inadequate statistical power, by the institution of some aspects of the study intervention outside of the research randomization sequence, and by the fact that LHJs did not constitute truly isolated sexual networks. CONCLUSIONS: A public health intervention promoting the use of free PDPT substantially increased its use and may have resulted in decreased chlamydial and gonococcal infections at the population level. TRIAL REGISTRATION: ClinicalTrials.gov NCT01665690.


Asunto(s)
Antibacterianos/administración & dosificación , Infecciones por Chlamydia/terapia , Trazado de Contacto , Gonorrea/terapia , Parejas Sexuales , Enfermedades de Transmisión Sexual/terapia , Adolescente , Adulto , Infecciones por Chlamydia/epidemiología , Infecciones por Chlamydia/microbiología , Infecciones por Chlamydia/transmisión , Chlamydia trachomatis/aislamiento & purificación , Femenino , Gonorrea/epidemiología , Gonorrea/microbiología , Gonorrea/transmisión , Heterosexualidad , Humanos , Neisseria gonorrhoeae/aislamiento & purificación , Prevalencia , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/microbiología , Enfermedades de Transmisión Sexual/transmisión , Washingtón/epidemiología , Adulto Joven
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