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1.
Pediatr Infect Dis J ; 42(2): 110-118, 2023 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-36638395

RESUMEN

BACKGROUND: In 2019, South Africa, Nigeria, Tanzania, Democratic Republic of Congo, Uganda, Mozambique, Zambia, Angola, Cameroon, Zimbabwe, Ghana, Ethiopia, Malawi, Kenya, South Sudan and Côte d'Ivoire accounted for 80% of children living with HIV (CLHIV) not receiving HIV treatment. This manuscript describes pediatric HIV testing to inform case-finding strategies. METHODS: We analyzed US President's Emergency Plan for AIDS Relief monitoring, evaluation, and reporting data (October 1, 2018 to September 30, 2019) for these 16 countries. Number of HIV tests and positive results were reported by age band, country, treatment coverage and testing modality. The number needed to test (NNT) to identify 1 new CLHIV 1-14 years was measured by testing modality and country. The pediatric testing gap was estimated by multiplying the estimated number of CLHIV unaware of their status by NNT per country. RESULTS: Among children, 6,961,225 HIV tests were conducted, and 101,762 CLHIV were identified (NNT 68), meeting 17.6% of the pediatric testing need. Index testing accounted for 13.0% of HIV tests (29.7% of positive results, NNT 30), provider-initiated testing and counseling 65.9% of tests (43.6% of positives, NNT 103), and universal testing at sick entry points 5.3% of tests (6.5% of positives, NNT 58). CONCLUSIONS: As countries near HIV epidemic control for adults, the need to increase pediatric testing continues. Each testing modality - PITC, universal testing at sick entry points, and index testing - offers unique benefits. These results illustrate the comparative advantages of including a strategic mix of testing modalities in national programs to increase pediatric HIV case finding.


Asunto(s)
Infecciones por VIH , Prueba de VIH , Adulto , Humanos , Niño , Zambia , Zimbabwe , Kenia , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología
2.
J Acquir Immune Defic Syndr ; 93(1): 15-24, 2023 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-36716723

RESUMEN

BACKGROUND: Adolescents have poorer outcomes across the HIV cascade compared with adults. We aimed to assess progress in HIV case finding, antiretroviral treatment (ART), viral load coverage (VLC), and viral load suppression (VLS) among adolescents enrolled in the US President's Emergency Plan for AIDS Relief (PEPFAR)-supported programs over a 3-year period that included the beginning of the COVID-19 pandemic. METHODS: We analyzed PEPFAR program data in 28 countries/regions for adolescents aged 10-19 years between year 1 (October 2017to September 2018), year 2 (October 2018 to September 2019), and year 3 (October 2019 to September 2020). We calculated the number and percent change for HIV tests, HIV-positive tests, and total number on ART. Calculated indicators included positivity, percent of positives newly initiated on ART (ART linkage), VLC (percent of ART patients on ART for ≥6 months with a documented viral load result within the past 12 months), and VLS (percent of viral load tests with <1000 copies/mL). RESULTS: Between years 1 and 3, the number of HIV tests conducted decreased by 44.2%, with a 29.1% decrease in the number of positive tests. Positivity increased from 1.3%-1.6%. The number of adolescents receiving ART increased by 10.4%. In addition, ART linkage increased (77.8%-86.7%) as did VLC (69.4%-79.4%) and VLS (72.8%-81.5%). CONCLUSIONS: Our findings demonstrate PEPFAR's success in increasing the adolescent treatment cohort. We identified ongoing gaps in adolescent case finding, linkage, VLC, and VLS that could be addressed with a strategic mix of testing strategies, optimal ART regimens, and adolescent-focused service delivery models.


Asunto(s)
COVID-19 , Infecciones por VIH , Adulto , Humanos , Adolescente , Infecciones por VIH/tratamiento farmacológico , Pandemias , Antirretrovirales/uso terapéutico , Estudios Longitudinales
3.
MMWR Morb Mortal Wkly Rep ; 70(37): 1284-1290, 2021 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-34529637

RESUMEN

COVID-19 vaccine breakthrough infection surveillance helps monitor trends in disease incidence and severe outcomes in fully vaccinated persons, including the impact of the highly transmissible B.1.617.2 (Delta) variant of SARS-CoV-2, the virus that causes COVID-19. Reported COVID-19 cases, hospitalizations, and deaths occurring among persons aged ≥18 years during April 4-July 17, 2021, were analyzed by vaccination status across 13 U.S. jurisdictions that routinely linked case surveillance and immunization registry data. Averaged weekly, age-standardized incidence rate ratios (IRRs) for cases among persons who were not fully vaccinated compared with those among fully vaccinated persons decreased from 11.1 (95% confidence interval [CI] = 7.8-15.8) to 4.6 (95% CI = 2.5-8.5) between two periods when prevalence of the Delta variant was lower (<50% of sequenced isolates; April 4-June 19) and higher (≥50%; June 20-July 17), and IRRs for hospitalizations and deaths decreased between the same two periods, from 13.3 (95% CI = 11.3-15.6) to 10.4 (95% CI = 8.1-13.3) and from 16.6 (95% CI = 13.5-20.4) to 11.3 (95% CI = 9.1-13.9). Findings were consistent with a potential decline in vaccine protection against confirmed SARS-CoV-2 infection and continued strong protection against COVID-19-associated hospitalization and death. Getting vaccinated protects against severe illness from COVID-19, including the Delta variant, and monitoring COVID-19 incidence by vaccination status might provide early signals of changes in vaccine-related protection that can be confirmed through well-controlled vaccine effectiveness (VE) studies.


Asunto(s)
Vacunas contra la COVID-19/administración & dosificación , COVID-19/epidemiología , COVID-19/prevención & control , Hospitalización/estadística & datos numéricos , Vacunación/estadística & datos numéricos , Adolescente , Adulto , Anciano , COVID-19/mortalidad , COVID-19/terapia , Humanos , Incidencia , Persona de Mediana Edad , Estados Unidos/epidemiología , Adulto Joven
4.
Clin Infect Dis ; 72(3): 482-485, 2021 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-33527126

RESUMEN

Among 146 nasopharyngeal (NP) and oropharyngeal (OP) swab pairs collected ≤7 days after illness onset, Real-Time Reverse Transcriptase Polymerase Chain Reaction assay for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 RT-PCR) diagnostic results were 95.2% concordant. However, NP swab cycle threshold values were lower (indicating more virus) in 66.7% of concordant-positive pairs, suggesting NP swabs may more accurately detect the amount of SARS-CoV-2.


Asunto(s)
COVID-19 , Técnicas de Laboratorio Clínico , Pruebas Diagnósticas de Rutina , Humanos , Nasofaringe , Reacción en Cadena en Tiempo Real de la Polimerasa , SARS-CoV-2 , Estados Unidos
5.
AIDS ; 34(9): 1339-1346, 2020 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-32590432

RESUMEN

OBJECTIVE: To examine morbidity and mortality risk among HIV-exposed uninfected (HEU) infants. DESIGN: Secondary data analysis of HEU infants in a prospective cohort study of mother-infant pairs. METHODS: Infants were recruited from immunization clinics (n = 151) in Zimbabwe from February to August 2013, enrolled at 4-12 weeks age, and followed every 3 months until incident HIV-infection, death, or 18-month follow-up. We estimated cumulative mortality probability and hazard ratios with 95% confidence intervals (CIs) using Kaplan-Meier curves and Cox regression, respectively. We also described reported reasons for infant hospitalization and symptoms preceding death. Median weight-for-age z-scores (WAZ) and median age were calculated and analyzed across study visits. RESULTS: Of 1188 HIV-exposed infants, 73 (6.1%) contracted HIV; we analyzed the remaining 1115 HEU infants. In total, 54 (4.8%) infants died, with median time to death of 5.5 months since birth (interquartile range: 3.6-9.8 months). Diarrhea, difficulty breathing, not eating, fever, and cough were commonly reported (range: 7.4-22.2%) as symptoms preceding infant death. Low birth weight was associated with higher mortality (adjusted hazard ratio 2.66, CI: 1.35-5.25), whereas maternal antiretroviral therapy predelivery (adjusted hazard ratio 0.34, CI: 0.18-0.64) and exclusive breastfeeding (adjusted hazard ratio 0.50, CI: 0.28-0.91) were associated with lower mortality. Overall, 9.6% of infants were hospitalized. Infant median WAZ declined after 3 months of age, reaching a minimum at 14.5 months of age, at which 50% of infants were underweight (WAZ below -2.0). CONCLUSION: Clinical interventions including maternal antiretroviral therapy; breastfeeding and infant feeding counseling and support; and early prevention, identification, and management of childhood illness; are needed to reduce HEU infant morbidity and mortality.


Asunto(s)
Infecciones por VIH/epidemiología , Mortalidad Infantil , Transmisión Vertical de Enfermedad Infecciosa/estadística & datos numéricos , Morbilidad , Niño , Estudios de Cohortes , Femenino , Infecciones por VIH/transmisión , Infecciones por VIH/virología , Humanos , Lactante , Madres , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Complicaciones Infecciosas del Embarazo/virología , Estudios Prospectivos , Zimbabwe/epidemiología
6.
BMC Public Health ; 20(1): 1015, 2020 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-32590975

RESUMEN

As countries strive to eliminate mother-to-child transmission of HIV, female sex workers (FSW) and their children still face barriers to accessing these essential services. Data on FSW uptake of HIV and reproductive health services before, during, and after pregnancy reveal inadequate service utilization. Stigma encountered by FSW in healthcare settings may contribute to low uptake of HIV testing, antiretroviral therapy (ART), and other prevention of mother-to-child HIV transmission (PMTCT) services. Coordination between community-based FSW and facility-based PMTCT programs can facilitate successful linkage of pregnant FSW to antenatal services to support PMTCT efforts. We offer a way forward to reach 90-90-90 targets for FSW and their families and eliminate mother-to-child transmission of HIV.


Asunto(s)
Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo/prevención & control , Trabajadores Sexuales/estadística & datos numéricos , Poblaciones Vulnerables/estadística & datos numéricos , Adulto , Femenino , Infecciones por VIH/epidemiología , Humanos , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Factores de Riesgo , Estigma Social
7.
MMWR Morb Mortal Wkly Rep ; 69(23): 714-721, 2020 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-32525850

RESUMEN

Compared with the volume of data on coronavirus disease 2019 (COVID-19) outbreaks among older adults, relatively few data are available concerning COVID-19 in younger, healthy persons in the United States (1,2). In late March 2020, the aircraft carrier USS Theodore Roosevelt arrived at port in Guam after numerous U.S. service members onboard developed COVID-19. In April, the U.S. Navy and CDC investigated this outbreak, and the demographic, epidemiologic, and laboratory findings among a convenience sample of 382 service members serving aboard the aircraft carrier are reported in this study. The outbreak was characterized by widespread transmission with relatively mild symptoms and asymptomatic infection among this sample of mostly young, healthy adults with close, congregate exposures. Service members who reported taking preventive measures had a lower infection rate than did those who did not report taking these measures (e.g., wearing a face covering, 55.8% versus 80.8%; avoiding common areas, 53.8% versus 67.5%; and observing social distancing, 54.7% versus 70.0%, respectively). The presence of neutralizing antibodies, which represent antibodies that inhibit SARS-CoV-2, among the majority (59.2%) of those with antibody responses is a promising indicator of at least short-term immunity. This report improves the understanding of COVID-19 in the U.S. military and among young adults in congregate settings and reinforces the importance of preventive measures to lower risk for infection in similar environments.


Asunto(s)
Aeronaves , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/inmunología , Brotes de Enfermedades , Personal Militar/estadística & datos numéricos , Neumonía Viral/epidemiología , Neumonía Viral/inmunología , Anticuerpos Neutralizantes/sangre , Anticuerpos Antivirales/sangre , Betacoronavirus/inmunología , COVID-19 , Prueba de COVID-19 , Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Femenino , Humanos , Masculino , Pandemias , SARS-CoV-2 , Estados Unidos/epidemiología , Adulto Joven
8.
MMWR Morb Mortal Wkly Rep ; 69(19): 582-586, 2020 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-32407305

RESUMEN

Although mother-to-child transmission (MTCT) of human immunodeficiency virus (HIV) is preventable through antiretroviral treatment (ART) during pregnancy and postpartum, the Joint United Nations Programme on HIV/AIDS (UNAIDS) estimates that 160,000 new HIV infections occurred among children in 2018 (1). Child survival and HIV-free survival rates* are standard measures of progress toward eliminating MTCT† (2). Nationally representative Population-based HIV Impact Assessment (PHIA)§ survey data, pooled from eight sub-Saharan African countries¶ were used to calculate survival probability among children aged ≤3 years by maternal HIV status during pregnancy and HIV-free survival probability among children aged ≤3 years born to women with HIV infection, stratified by maternal ART** status during pregnancy. Survival probability was significantly lower among children born to women with HIV infection (94.7%) than among those born to women without HIV infection (97.6%). HIV-free survival probability of children born to women with HIV infection differed significantly by the timing of initiation of maternal ART: 93.0% among children whose mothers received ART before pregnancy, 87.8% among those whose mothers initiated ART during pregnancy, and 53.4% among children whose mothers did not receive ART during pregnancy. Focusing on prevention of HIV acquisition and, among women of reproductive age with HIV infection, on early diagnosis of HIV infection and ART initiation when applicable, especially before pregnancy, can improve child survival and HIV-free survival.


Asunto(s)
Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Tasa de Supervivencia/tendencias , África del Sur del Sahara/epidemiología , Fármacos Anti-VIH/uso terapéutico , Preescolar , Femenino , Infecciones por VIH/mortalidad , Infecciones por VIH/transmisión , Humanos , Lactante , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Masculino , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico
9.
AIDS Behav ; 23(12): 3257-3266, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31313095

RESUMEN

A syringe services program (SSP) was established following the Indiana HIV outbreak among persons who inject drugs (PWID) in Scott County. Among Indiana-based PWID, we examined injection behaviors associated with HIV status, SSP use after its establishment, and changes in injection behaviors after the outbreak response. During 2016, we interviewed 200 PWID and assessed injection behaviors before the response by HIV status. We reported injection behaviors prior to the response and used Fisher's exact Chi square tests (P < 0.05) to assess differences by HIV status. Next, among persons who injected both before (July-December 2014) and after (past 30 days) the response, we (1) reported the proportion of persons who used the SSP to obtain sterile syringes, and assessed differences in SSP use by HIV status using Fisher's exact Chi square tests; and (2) compared distributive and receptive sharing of injection equipment and disposal of syringes before and after the outbreak response, and assessed statistical differences using McNemar's test. We also compared injection behaviors before and after the response by HIV status. Injecting extended release oxymorphone (Opana® ER); receptive sharing of syringes and cookers; and distributive sharing of cookers, filters, or water before the response were associated with HIV infection. SSP use was high (86%), particularly among HIV-positive compared with HIV-negative persons (98% vs. 84%). Injection equipment sharing decreased and safe disposal of used syringes increased after the response, especially among HIV-positive persons. Injection equipment sharing contributed to the outbreak. High SSP use following the response, particularly among HIV-positive persons, contributed to decreased high-risk injection practices.


Asunto(s)
Brotes de Enfermedades , Transmisión de Enfermedad Infecciosa/prevención & control , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Programas de Intercambio de Agujas , Asunción de Riesgos , Abuso de Sustancias por Vía Intravenosa/complicaciones , Adolescente , Adulto , Control de Enfermedades Transmisibles/métodos , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/transmisión , Humanos , Indiana/epidemiología , Inyecciones , Masculino , Persona de Mediana Edad , Compartición de Agujas , Salud Pública , Abuso de Sustancias por Vía Intravenosa/epidemiología , Jeringas
10.
MMWR Morb Mortal Wkly Rep ; 67(19): 552-555, 2018 May 18.
Artículo en Inglés | MEDLINE | ID: mdl-29771871

RESUMEN

Rapid disease progression and associated opportunistic infections contribute to high mortality rates among children aged <15 years with human immunodeficiency virus (HIV) infection (1). Antiretroviral therapy (ART) has decreased childhood HIV-associated morbidity and mortality rates over the past decade (2). As accumulating evidence revealed lower HIV-associated mortality with early ART initiation, the World Health Organization (WHO) guidelines broadened ART eligibility for children with HIV infection (2). Age at ART initiation for children with HIV infection expanded sequentially in the 2010, 2013, and 2016 WHO guidelines to include children aged <2, <5, and <15 years, respectively, regardless of clinical or immunologic status (3-5). The United States President's Emergency Plan for AIDS Relief (PEPFAR) has supported ART for children with HIV infection since 2003 and, informed by the WHO guidelines and a growing evidence base, PEPFAR-supported countries have adjusted their national pediatric guidelines. To understand the lag between guideline development and implementation, as well as the ART coverage gap, CDC assessed national pediatric HIV guidelines and analyzed Joint United Nations Programme on HIV and AIDS (acquired immunodeficiency syndrome; UNAIDS) data on children aged <15 years with HIV infection and the numbers of these children on ART. Timeliness of WHO pediatric ART guideline adoption varied by country; >50% of children with HIV infection are not receiving ART, underscoring the importance of strengthening case finding and linkage to HIV treatment in pediatric ART programs.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Determinación de la Elegibilidad/tendencias , Infecciones por VIH/tratamiento farmacológico , Accesibilidad a los Servicios de Salud/tendencias , Adolescente , África del Sur del Sahara/epidemiología , Niño , Preescolar , Infecciones por VIH/epidemiología , Humanos , Lactante
11.
J Int Assoc Provid AIDS Care ; 17: 2325957417752259, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29357772

RESUMEN

OBJECTIVE: To examine HIV viral suppression during/after pregnancy. DESIGN: Prospective observational cohort. METHODS: We identified pregnancies from 1996 to 2015. We examined HIV RNA viral load (VL), VL suppression (≤500 copies/mL), and antiretroviral therapy (ART) status at pregnancy start, end, and 6 months postpartum. We estimated risk ratios (RRs) and 95% confidence intervals (CIs) for VL nonsuppression. RESULTS: Among 253 pregnancies analyzed, 34.8% of women exhibited VL suppression at pregnancy start, 60.1% at pregnancy end, and 42.7% at 6 months postpartum. Median VL (log10 copies/mL) was 2.80 (interquartile range [IQR]: 1.40-3.85) at pregnancy start, 1.70 (IQR: 1.40-2.82) at pregnancy end, and 2.30 (IQR: 1.40-3.86) at postpartum. Risk of postpartum VL nonsuppression was also lower among women on ART and with VL suppression at pregnancy end (versus those not; adjusted RR = 0.30, 95% CI: 0.17-0.53). CONCLUSIONS: Maintaining VL suppression among US women remains a challenge, particularly during postpartum. Achieving VL suppression earlier during pregnancy benefits women subsequently.


Asunto(s)
Terapia Antirretroviral Altamente Activa , Infecciones por VIH/tratamiento farmacológico , Complicaciones Infecciosas del Embarazo/virología , ARN Viral/sangre , Carga Viral/efectos de los fármacos , Adulto , Femenino , VIH-1 , Humanos , Oportunidad Relativa , Pacientes Ambulatorios , Embarazo , Estudios Prospectivos
13.
J Acquir Immune Defic Syndr ; 77(4): 373-382, 2018 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-29271829

RESUMEN

OBJECTIVE: To describe injection-related HIV risk behaviors preimplementation and postimplementation of an emergency syringe services program (SSP) in Scott County, Indiana, after an HIV outbreak among persons who inject drugs (PWID). DESIGN: Mixed methods retrospective pre-post intervention analysis. METHODS: We analyzed routine SSP program data collected at first and most recent visit among clients with ≥2 visits, ≥7 days apart from April 4 to August 30, 2015, to quantify changes in injection-related risk behaviors. We also analyzed qualitative data collected from 56 PWID recruited in Scott County to understand factors contributing to these behaviors. RESULTS: SSP clients included in our analysis (n = 148, 62% of all SSP clients) reported significant (P < 0.001) reductions over a median 10 weeks (range 1-23) in syringe sharing to inject (18%-2%) and divide drugs (19%-4%), sharing other injection equipment (eg, cookers) (24%-5%), and number of uses of the same syringe [2 (interquartile range: 1-4) to 1 (interquartile range: 1-1)]. Qualitative study participants described access to sterile syringes and safer injection education through the SSP, as explanatory factors for these reductions. Injection frequency findings were mixed, but overall suggested no change. The number of syringes returned by SSP clients increased from 0 at first visit to median 57. All qualitative study participants reported using sharps containers provided by the SSP. CONCLUSIONS: Analyses of an SSP program and in-depth qualitative interview data showed rapid reduction of injection-related HIV risk behaviors among PWID post-SSP implementation. Sterile syringe access as part of comprehensive HIV prevention is an important tool to control and prevent HIV outbreaks.


Asunto(s)
Brotes de Enfermedades , Transmisión de Enfermedad Infecciosa/prevención & control , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Programas de Intercambio de Agujas , Asunción de Riesgos , Abuso de Sustancias por Vía Intravenosa/complicaciones , Adolescente , Adulto , Anciano , Control de Enfermedades Transmisibles/métodos , Femenino , Infecciones por VIH/transmisión , Humanos , Indiana/epidemiología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
14.
Int J Drug Policy ; 52: 97-101, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29278838

RESUMEN

BACKGROUND: Misuse of prescription opioid analgesics (POA) has increased dramatically in the US, particularly in non-urban areas. We examined injection practices among persons who inject POA in a rural area that experienced a large HIV outbreak in 2015. METHODS: Between August-September 2015, 25 persons who injected drugs within the past 12 months were recruited in Scott County, Indiana for a qualitative study. Data from in-depth, semi-structured interviews were analyzed. RESULTS: All 25 participants were non-Hispanic white and the median age was 33 years (range: 19-57). All had ever injected extended-release oxymorphone (Opana® ER) and most (n=20) described preparing Opana® ER for multiple injections per injection episode (MIPIE). MIPIE comprised 2-4 injections during an injection episode resulting from needing >1mL water to prepare Opana® ER solution using 1mL syringes and the frequent use of "rinse shots." MIPIE occurred up to 10 times/day (totaling 35 injections/day), often in the context of sharing drug and injection equipment. CONCLUSIONS: We describe a high-risk injection practice that may have contributed to the rapid spread of HIV in this community. Efforts to prevent bloodborne infections among people who inject POA need to assess for MIPIE so that provision of sterile injection equipment and safer injection education addresses the MIPIE risk environment.


Asunto(s)
Infecciones por VIH/epidemiología , Trastornos Relacionados con Opioides/epidemiología , Abuso de Sustancias por Vía Intravenosa/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Adulto , Analgésicos Opioides/administración & dosificación , Brotes de Enfermedades , Femenino , Humanos , Indiana/epidemiología , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Compartición de Agujas , Trastornos Relacionados con Opioides/complicaciones , Oximorfona/administración & dosificación , Asunción de Riesgos , Población Rural , Abuso de Sustancias por Vía Intravenosa/complicaciones , Trastornos Relacionados con Sustancias/complicaciones , Jeringas , Adulto Joven
15.
N Engl J Med ; 375(3): 229-39, 2016 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-27468059

RESUMEN

BACKGROUND: In January 2015, a total of 11 new diagnoses of human immunodeficiency virus (HIV) infection were reported in a small community in Indiana. We investigated the extent and cause of the outbreak and implemented control measures. METHODS: We identified an outbreak-related case as laboratory-confirmed HIV infection newly diagnosed after October 1, 2014, in a person who either resided in Scott County, Indiana, or was named by another case patient as a syringe-sharing or sexual partner. HIV polymerase (pol) sequences from case patients were phylogenetically analyzed, and potential risk factors associated with HIV infection were ascertained. RESULTS: From November 18, 2014, to November 1, 2015, HIV infection was diagnosed in 181 case patients. Most of these patients (87.8%) reported having injected the extended-release formulation of the prescription opioid oxymorphone, and 92.3% were coinfected with hepatitis C virus. Among 159 case patients who had an HIV type 1 pol gene sequence, 157 (98.7%) had sequences that were highly related, as determined by phylogenetic analyses. Contact tracing investigations led to the identification of 536 persons who were named as contacts of case patients; 468 of these contacts (87.3%) were located, assessed for risk, tested for HIV, and, if infected, linked to care. The number of times a contact was named as a syringe-sharing partner by a case patient was significantly associated with the risk of HIV infection (adjusted risk ratio for each time named, 1.9; P<0.001). In response to this outbreak, a public health emergency was declared on March 26, 2015, and a syringe-service program in Indiana was established for the first time. CONCLUSIONS: Injection-drug use of extended-release oxymorphone within a network of persons who inject drugs in Indiana led to the introduction and rapid transmission of HIV. (Funded by the state government of Indiana and others.).


Asunto(s)
Brotes de Enfermedades , Infecciones por VIH/epidemiología , VIH-1/genética , Oximorfona/administración & dosificación , Abuso de Sustancias por Vía Intravenosa/complicaciones , Adolescente , Adulto , Coinfección , Trazado de Contacto , Infecciones por VIH/transmisión , Hepatitis C/epidemiología , Humanos , Indiana/epidemiología , Masculino , Persona de Mediana Edad , Compartición de Agujas/efectos adversos , Filogenia , Apoyo Social , Adulto Joven
16.
Emerg Infect Dis ; 22(9): 1653-5, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27268508

RESUMEN

Persons who died of Ebola virus disease at home in rural communities in Liberia and Guinea resulted in more secondary infections than persons admitted to Ebola treatment units. Intensified monitoring of contacts of persons who died of this disease in the community is an evidence-based approach to reduce virus transmission in rural communities.


Asunto(s)
Coinfección/epidemiología , Ebolavirus , Fiebre Hemorrágica Ebola/epidemiología , Población Rural , Coinfección/historia , Coinfección/transmisión , Coinfección/virología , Guinea/epidemiología , Fiebre Hemorrágica Ebola/historia , Fiebre Hemorrágica Ebola/transmisión , Fiebre Hemorrágica Ebola/virología , Historia del Siglo XXI , Hospitalización , Humanos , Liberia/epidemiología , Vigilancia de la Población
17.
Emerg Infect Dis ; 21(10): 1800-7, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26402477

RESUMEN

We measured the reproduction number before and after interventions were implemented to reduce Ebola transmission in 9 outbreaks in Liberia during 2014. We evaluated risk factors for secondary cases and the association between patient admission to an Ebola treatment unit (ETU) and survival. The reproduction number declined 94% from 1.7 (95% CI 1.1-2.6) to 0.1 (95% CI 0.02-0.6) after interventions began. The risk for secondary infections was 90% lower for patients admitted to an ETU (risk ratio 0.1, 95% CI 0.04-0.3) than for those who died in the community. The case-fatality rate was 68% (95% CI 60-74), and ETU admission was associated with a 50% reduction in death (hazard ratio 0.5, 95% CI 0.4-0.8). Isolation and treatment of Ebola patients had the dual benefit of interrupting community transmission and improving survival.


Asunto(s)
Brotes de Enfermedades , Ebolavirus/patogenicidad , Fiebre Hemorrágica Ebola/epidemiología , Factores de Tiempo , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Liberia/epidemiología , Masculino , Persona de Mediana Edad , Factores de Riesgo
18.
MMWR Morb Mortal Wkly Rep ; 64(16): 443-4, 2015 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-25928470

RESUMEN

On January 23, 2015, the Indiana State Department of Health (ISDH) began an ongoing investigation of an outbreak of human immunodeficiency virus (HIV) infection, after Indiana disease intervention specialists reported 11 confirmed HIV cases traced to a rural county in southeastern Indiana. Historically, fewer than five cases of HIV infection have been reported annually in this county. The majority of cases were in residents of the same community and were linked to syringe-sharing partners injecting the prescription opioid oxymorphone (a powerful oral semi-synthetic opioid analgesic). As of April 21, ISDH had diagnosed HIV infection in 135 persons (129 with confirmed HIV infection and six with preliminarily positive results from rapid HIV testing that were pending confirmatory testing) in a community of 4,200 persons.


Asunto(s)
Coinfección/epidemiología , Brotes de Enfermedades , Infecciones por VIH/epidemiología , Oximorfona/administración & dosificación , Abuso de Sustancias por Vía Intravenosa/epidemiología , Adolescente , Adulto , Causalidad , Comorbilidad , Femenino , Hepatitis C/epidemiología , Heroína/administración & dosificación , Humanos , Indiana/epidemiología , Masculino , Metenamina/administración & dosificación , Persona de Mediana Edad , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Población Rural , Parejas Sexuales , Adulto Joven
19.
Am J Epidemiol ; 181(9): 714-22, 2015 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-25787266

RESUMEN

Among patients with tuberculosis and human immunodeficiency virus type 1, CD4-stratified initiation of antiretroviral therapy (ART) is recommended, with earlier ART in those with low CD4 counts. However, the impact of implementation fidelity to this recommendation is unknown. We examined a prospective cohort study of 395 adult patients diagnosed with tuberculosis and human immunodeficiency virus between August 2007 and November 2009 in Kinshasa, Democratic Republic of the Congo. ART was to be initiated after 1 month of tuberculosis treatment at a CD4 count of <100 cells/mm(3) or World Health Organization stage 4 (other than extrapulmonary tuberculosis) and after 2 months of tuberculosis treatment at a CD4 count of 100-350 cells/mm(3). We used the parametric g-formula to estimate the impact of implementation fidelity on 6-month mortality. Observed implementation fidelity was low (46%); 54% of patients either experienced delays in ART initiation or did not initiate ART, which could be avoided under perfect implementation fidelity. The observed mortality risk was 12.0% (95% confidence interval (CI): 8.2, 15.7); under complete (counterfactual) implementation fidelity, the mortality risk was 7.8% (95% CI: 2.4, 12.3), corresponding to a risk reduction of 4.2% (95% CI: 0.3, 8.1) and a preventable fraction of 35.1% (95% CI: 2.9, 67.9). Strategies to achieve high implementation fidelity to CD4-stratified ART timing are needed to maximize survival benefit.


Asunto(s)
Antirretrovirales/administración & dosificación , Adhesión a Directriz/estadística & datos numéricos , Infecciones por VIH/tratamiento farmacológico , Atención Primaria de Salud/estadística & datos numéricos , Tuberculosis/complicaciones , Adulto , Recuento de Linfocito CD4 , República Democrática del Congo/epidemiología , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/inmunología , Infecciones por VIH/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
20.
MMWR Morb Mortal Wkly Rep ; 64(7): 188-92, 2015 Feb 27.
Artículo en Inglés | MEDLINE | ID: mdl-25719682

RESUMEN

West Africa is experiencing its first epidemic of Ebola virus disease (Ebola). As of February 9, Liberia has reported 8,864 Ebola cases, of which 3,147 were laboratory-confirmed. Beginning in August 2014, the Liberia Ministry of Health and Social Welfare (MOHSW), supported by CDC, the World Health Organization (WHO), and others, began systematically investigating and responding to Ebola outbreaks in remote areas. Because many of these areas lacked mobile telephone service, easy road access, and basic infrastructure, flexible and targeted interventions often were required. Development of a national strategy for the Rapid Isolation and Treatment of Ebola (RITE) began in early October. The strategy focuses on enhancing capacity of county health teams (CHT) to investigate outbreaks in remote areas and lead tailored responses through effective and efficient coordination of technical and operational assistance from the MOHSW central level and international partners. To measure improvements in response indicators and outcomes over time, data from investigations of 12 of 15 outbreaks in remote areas with illness onset dates of index cases during July 16-November 20, 2014, were analyzed. The times to initial outbreak alerts and durations of the outbreaks declined over that period while the proportions of patients who were isolated and treated increased. At the same time, the case-fatality rate in each outbreak declined. Implementation of strategies, such as RITE, to rapidly respond to rural outbreaks of Ebola through coordinated and tailored responses can successfully reduce transmission and improve outcomes.


Asunto(s)
Brotes de Enfermedades/prevención & control , Ebolavirus/aislamiento & purificación , Fiebre Hemorrágica Ebola/prevención & control , Población Rural , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Brotes de Enfermedades/estadística & datos numéricos , Femenino , Fiebre Hemorrágica Ebola/epidemiología , Humanos , Lactante , Liberia/epidemiología , Masculino , Persona de Mediana Edad , Población Rural/estadística & datos numéricos , Factores de Tiempo , Adulto Joven
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