[Addressing HIV/AIDS and syphilis in Venezuelan migrant women from the perspective of health managers in the North of BrazilManejo de la infección por el VIH/sida y la sífilis en mujeres migrantes venezolanas desde la perspectiva de los gestores de salud en el norte de Brasil]. / Enfrentamento de HIV/aids e sífilis em mulheres venezuelanas migrantes na perspectiva de gestores de saúde no Norte do Brasil.

Objective: To identify the perception of health managers regarding the actions taken and the challenges encountered in addressing HIV and syphilis in Venezuelan migrant women in Brazil. Method: This descriptive-exploratory study using a qualitative approach was conducted from January to March 2021 in the municipalities of Boa Vista (state of Roraima) and Manaus (state of Amazonas). Audio interviews with the participants were transcribed in full and examined using thematic content analysis. Results: Ten managers were interviewed (five in Boa Vista and five in Manaus). Content analysis identified the following domains and themes: available infrastructure for diagnosis and treatment of AIDS and syphilis - access, availability of medical appointments /waiting list, training of health teams, and psychosocial support; challenges faced by Venezuelan women - language, documentation issues, and frequent address changes; and strategies and actions adopted and expectations for addressing HIV/AIDS and syphilis in the context of migration. Conclusions: Despite the care provided to Venezuelan women in Brazil - guaranteed by the universal nature of the Brazilian health system - language and lack of documentation remain as barriers. Given the absence of action plans and future planning for the care of migrant women with HIV or syphilis in municipalities, it is important to develop public policies aimed at minimizing the difficulties faced by this population.

Objetivo: Determinar la percepción de los gestores de salud sobre las medidas adoptadas y los desafíos encontrados para manejar la infección por el VIH y la sífilis en mujeres migrantes venezolanas en Brasil. Métodos: Este estudio descriptivo y exploratorio, con enfoque cualitativo, se realizó de enero a marzo del 2021 en los municipios de Boa Vista (estado de Roraima) y Manaos (estado de Amazonas). La grabación de las entrevistas de los participantes se transcribió en su totalidad. El análisis se basó en la técnica de evaluación temática del contenido. Resultados: Se hicieron entrevistas a diez gestores (cinco en Boa Vista y cinco en Manaos). En el análisis del contenido se observaron los siguientes ejes y temas: la estructura disponible para el diagnóstico y tratamiento del sida y de la sífilis, con inclusión de acceso, cupos de atención, filas de espera y formación de equipos de salud y apoyo psicosocial; los desafíos enfrentados por las mujeres venezolanas, como idioma, problemas de documentación y frecuencia de cambio de domicilio; las estrategias y medidas adoptadas y las expectativas para enfrentar la infección por el VIH/sida y la sífilis en el marco de la migración. Conclusiones: A pesar de las medidas de acogida a las mujeres migrantes venezolanas, garantizadas por la universalidad del sistema de salud brasileño, todavía existen algunas barreras como el idioma y la falta de documentación. Ante la falta de planes de acción y planificación futura de la atención a las mujeres migrantes portadoras del VIH o con sífilis en los municipios, es importante formular políticas públicas con el fin de reducir las dificultades enfrentadas por este grupo de la población.

[Barriers and facilitators to confronting HIV/aids and syphilis experienced by Venezuelan women living in BrazilFactores facilitadores y barreras que tienen las mujeres venezolanas residentes en Brasil respecto de la infección por el VIH/sida y la sífilis]. / Barreiras e facilitadores do enfrentamento de HIV/aids e sífilis por venezuelanas residentes no Brasil.

Objective: To describe the perception of Venezuelan women regarding access to health care, diagnosis, and treatment of HIV/aids and syphilis in Brazil. Method: This is a descriptive, exploratory study employing a qualitative approach, performed from February to May 2021 in the municipalities of Manaus, state of Amazonas, and Boa Vista, state of Roraima. The interviews with participants were fully transcribed, with identification of themes based on content analysis. Results: Forty women were interviewed (20 in Manaus and 20 in Boa Vista). Following transcription and translation of the accounts, two analytical categories were identified: barriers to healthcare access, with four subcategories - language, cost, adverse drug reactions, and COVID-19 pandemic; and facilitators of healthcare access, again with four subcategories - Unified Health System (SUS), National Policy of Comprehensive Women's Health, National Social Assistance Policy, and relationship between healthcare professionals and SUS users. Conclusion: The results showed the need to design strategies to mitigate the difficulties faced by migrant women from Venezuela living in Brazil regarding the diagnosis and treatment of HIV/aids and syphilis, going beyond the healthcare support guaranteed by law.

Objetivo: Describir la percepción de las mujeres venezolanas sobre el acceso a los servicios de salud, al diagnóstico y al tratamiento de la infección por el VIH/sida y la sífilis en Brasil. Métodos: Se trata de un estudio descriptivo y exploratorio, con enfoque cualitativo, realizado entre febrero y mayo del 2021 en los municipios de Manaos, estado de Amazonas, y Boa Vista, estado de Roraima. Las entrevistas con las participantes se transcribieron en su totalidad, y se exploraron los puntos de interés según el análisis del contenido. Resultados: Se entrevistaron 40 mujeres (20 en Manaos y 20 en Boa Vista). A partir de la transcripción y la traducción de las conversaciones, se establecieron dos categorías para el análisis del contenido: las barreras de acceso a los servicios de salud (subcategorías: idioma, costos relacionados con la salud, reacciones adversas a los medicamentos y pandemia de COVID-19); y los factores facilitadores del acceso (cuatro subcategorías: Sistema Único de Salud, Política nacional de Atención Integral a la Salud de la Mujer, Política Nacional de Asistencia Social y relación entre los profesionales de salud y las usuarias del Sistema Único de Salud). Conclusión: Los resultados mostraron la necesidad de formular estrategias para mitigar las dificultades que enfrentan las mujeres migrantes de Venezuela residentes en Brasil en relación con el diagnóstico y el tratamiento de la infección por el VIH/sida y la sífilis, más allá de la protección de la salud garantizada por la ley.

Factors associated with latent tuberculosis among international migrants in Brazil: a cross-sectional study (2020).

BACKGROUND: Migrants are a high priority group for TB control measures due to their high exposure to risk factors such as poverty and social vulnerability. The study aimed to identify factors associated with latent TB among international migrants living in four Brazilian state capitals. This was a cross-sectional study conducted in September and October 2020 in a sample of 903 international migrants living in four Brazilian state capitals: Boa Vista/RR (458), Manaus/AM (136), São Paulo/SP (257), and Curitiba/PR (52). Data were collected with a questionnaire consisting of open and closed questions on personal characteristics, information on TB, and use of preventive measures. Tuberculin skin test (TST) was performed, with reading after 72 h by trained nurses and using 5 mm induration as the positive cutoff. Chi-square test (X2) and Fisher's exact test, both two-tailed, were used to compare statistically significant levels of association between the migrants´ sociodemographic characteristics, vulnerability, and latent TB infection (LTBI). Binary logistic regression was applied to calculate odds ratios and respective 95% confidence intervals. For all the tests, type I error of 5% was defined as statistically significant (p < 0.05). RESULTS: Prevalence of LTBI among migrants was 46.1% in Manaus/AM, 33.3% in São Paulo/SP, 28.1% in Curitiba/PR, and 23.5% in Boa Vista/RR. Factors associated with latent infection were age, male gender, and brown or indigenous race. CONCLUSIONS: The study showed high prevalence of latent TB among international migrants.

Mapping the tuberculosis scientific landscape among BRICS countries: a bibliometric and network analysis.

BACKGROUND: The five BRICS (Brazil, Russian, Indian, China, and South Africa) countries bear 49% of the world's tuberculosis (TB) burden and they are committed to ending tuberculosis. OBJECTIVES: The aim of this paper is to map the scientific landscape related to TB research in BRICS countries. METHODS: Were combined bibliometrics and social network analysis techniques to map the scientific publications related to TB produced by the BRICS. Was made a descriptive statistical data covering the full period of analysis (1993-2016) and the research networks were made for 2007-2016 (8,366 records). The bubble charts were generated by VantagePoint and the networks by the Gephi 0.9.1 software (Gephi Consortium 2010) from co-occurrence matrices produced in VantagePoint. The Fruchterman-Reingold algorithm provided the networks' layout. FINDINGS: During the period 1993-2016, there were 38,315 peer-reviewed, among them, there were 11,018 (28.7%) articles related by one or more authors in a BRICS: India 38.7%; China 23.8%; South Africa 21.1%; Brazil 13.0%; and Russia 4.5% (The total was greater than 100% because our criterion was all papers with at least one author in a BRICS). Among the BRICS, there was greater interaction between India and South Africa and organisations in India and China had the highest productivity; however, South African organisations had more interaction with countries outside the BRICS. Publications by and about BRICS generally covered all research areas, especially those in India and China covered all research areas, although Brazil and South Africa prioritised infectious diseases, microbiology, and the respiratory system. MAIN CONCLUSIONS: An overview of BRICS scientific publications and interactions highlighted the necessity to develop a BRICS TB research plan to increase efforts and funding to ensure that basic science research successfully translates into products and policies to help end the TB epidemic.

High prevalence of enteric viruses associated with acute gastroenteritis in pediatric patients in a low-income area in Vitória, Southeastern Brazil.

Acute gastroenteritis (AGE) is a significant cause of child mortality worldwide. In Brazil, despite the reduction in infant mortality achieved in recent years, many children still die because of undiagnosed AGE. The prevalence, viral load, and circulating genotypes of rotavirus A (RVA), human adenovirus (HAdV), and norovirus GII (NoV GII) were investigated in children with AGE during 12 months in Vitoria, Espírito Santo, Southeastern Brazil. Enteric viruses were detected in stool samples, quantified by quantitative polymerase chain reaction, sequenced, and compared phylogenetically. The overall prevalence was 93.3% (125/134). Cases of single infection (41.8%) and mixed infection (51.5%) were observed; in 21.6% of cases, all the three viruses were detected. RVA had the highest number of copies in all infections. Phylogenetic analysis revealed predominantly the presence of RVA genotype G3, followed by G2 and G9. HAdV clustered within subgroup C, but some samples harbored subgroups A, D, or F. All sequenced NoV-positive samples clustered within the prevalent genotype GII.4. The high prevalence of RVA, HAdV, and NoV in diarrheal feces clarifies the etiology of AGE in this population, and the presence of RVA in vaccinated children reinforces the importance of monitoring programs to identify the causes of gastroenteritis and contribute to the reliability of diagnosis.

[Variations in the detection of congenital Zika syndrome associated with changes in protocolsVariación de la detección del síndrome congénito por el virus del Zika en función de los cambios de los protocolos]. / Variação na detecção da síndrome congênita do Zika em função de alterações em protocolos.

In 2015, Brazil faced a Zika virus epidemic that spread to other countries in the world. As a result, recommendations regarding reporting criteria for congenital Zika syndrome (CZS) were issued in the form of protocols. The frequent changes in these recommendations may have affected clinical management and the access to post-diagnostic support by children who were affected by CZS, but who ended up not being identified. In the present study, 39 cases of CZS reported in the state of Espírito Santo, Brazil, from 2015 to 2016 were re-classified in terms of diagnosis using the current protocol, which is different from the protocol used in 2015. According to this re-classification, only eight out of 36 cases would be confirmed, based on the criterion of two or more signs or symptoms of CZS with or without microcephaly plus positive serologic results. Also, considering the decrease in the head circumference cut-off point defining microcephaly, 17 cases would no longer meet the definition for this condition. Even though the current protocol does not rely on head circumference alone for CZS reporting and confirmation, it should be noted that this is still the main sign considered by health care teams, and therefore the decrease in the cut-off point might have compromised early CZS detection. A review of "ruled out" cases would be advisable in moments of protocol transition to determine whether these cases have been correctly classified.

En el 2015, Brasil enfrentó una epidemia de infección por el virus del Zika que se propagó por varios países del mundo. Posteriormente, se divulgaron recomendaciones acerca de los criterios de notificación de casos del síndrome congénito por el virus del Zika (SCZ) por medio de protocolos. Los cambios frecuentes de esas recomendaciones podrían haber afectado el manejo clínico y el acceso al apoyo posterior al diagnóstico de los niños afectados, pero no identificados. En el presente estudio, se reclasificó el diagnóstico de 39 casos del SCZ notificados en el estado de Espírito Santo en el período 2015-2016, de acuerdo con el protocolo vigente en la actualidad, que es distinto del que regía en el 2015. Por causa de la reclasificación, se confirmaron únicamente ocho de los 36 casos, con observancia del criterio de dos o más signos o síntomas del SCZ acompañados o no de microcefalia y con confirmación serológica. Además, por la disminución del perímetro cefálico que define la microcefalia, 17 casos no correspondieron a esa afección. A pesar de que en el protocolo vigente no se utiliza solamente el perímetro cefálico como criterio para la notificación y confirmación del SCZ, cabe resaltar que este hallazgo es, con todo, la mayor señal para los equipos de salud, puesto que indica un riesgo de falta de detección temprana del SCZ. Convendría examinar los casos "descartados" en el momento de la transición entre protocolos, con el fin de determinar si se clasificaron correctamente.

[Congenital Zika syndrome: sociodemographic profile of mothersSíndrome congénito por el virus del Zika: perfil sociodemográfico de las madres]. / Síndrome congênita do vírus Zika: perfil sociodemográfico das mães.

OBJECTIVE: Describe the sociodemographic profile of mothers of children with congenital Zika syndrome. METHODS: This is a descriptive, cross-sectional, quantitative study. The 39 mothers of live born babies among the cases notified in 2015 and 2016 with confirmed diagnosis of congenital Zika syndrome in the state of Espírito Santo, Brazil, were invited to participate. Of these, 25 mothers were enrolled. Data were collected using a socioeconomic questionnaire and a field diary. RESULTS: Skin color was self-reported as non-white by 19/25 mothers (74.0%), and 16 (64.0%) reported having a partner. Regarding schooling, 12 (48.0%) had completed high school. Per capita income varied from no income to US$ 1 111.11, and ranged from none to US$ 61.72 for 12 women (48.0%). Seventeen women (68.0%) lived in underprivileged periphery areas with poor living conditions. Of the 25 women, 16 (64.0%) had a job prior to the pregnancy; and of these, 12 (75.0%) were fired or quit after the baby was born. CONCLUSIONS: The profile of mothers shows that the Zika epidemics was not equanimous and preferentially affected women with low income and lower social class. In this sense, we believe that congenital Zika syndrome may be determined by social inequalities in Brazil. The data described in the present study may be useful for the planning of effective actions to ensure a social protection network for children with congenital Zika syndrome and their families.

OBJETIVO: Describir el perfil sociodemográfico de las madres de niños con síndrome congénito por el virus del Zika. MÉTODOS: Estudio descriptivo, transversal, de abordaje cuantitativo. Se invitó a participar en el estudio a 39 madres de niños nacidos vivos pertenecientes al grupo de casos notificados entre 2015 y 2016 con diagnóstico confirmado de síndrome congénito por el virus del Zika en el estado de Espírito Santo. De las 39 mujeres, 25 aceptaron participar. Para la recolección de datos se utilizó un formulario para identificar el perfil sociodemográfico y un diario de campo. RESULTADOS: Se identificaron 107 estudios. Al final del proceso de clasificación se incluyeron 18 artículos que presentaban datos sobre la asociación entre el péptido C y el riesgo cardiovascular. Cinco estudios proporcionaron datos sobre la relación entre el péptido C y la mortalidad cardiovascular y general. El péptido C presentó una asociación positiva con el índice de masa corporal en población china, y una asociación inversa con el colesterol HDL en muestras poblacionales de Asia, Oriente Medio y Estados Unidos. Sin embargo, no fue posible realizar un metanálisis para los componentes de riesgo cardiovascular. Por otro lado, el péptido C se asoció con la mortalidad cardiovascular (RR = 1,62, IC95%: 0,99 a 2,66) y general (RR = 1,39, IC95%: 1,04 a 1,84). CONCLUSIONES: De las 25 madres, 19 (74,0%) manifestaron no ser blancas y 16 (64,0%) tener una pareja. En cuanto a la escolaridad, 12 (48,0%) poseían eduación media completa. El ingreso domiciliario per cápita varió desde ningún ingreso hasta US$ 1 111,11; 12 mujeres (48,0%) reportaron desde no tener ingresos hasta un ingreso de US$ 61,72. En cuanto a la vivienda, 17 (68,0%) vivían en zonas periféricas con condiciones precarias. De las 25 mujeres, 16 (64,0%) presentaban vínculo laboral antes de la gestación, y de estas 12 (75,0%) fueron despedidas o renunciaron después del nacimiento del niño. Conclusiones. El perfil de las madres reveló que la epidemia no fue equitativa y alcanzó mayormente a mujeres de bajos ingresos y de estratos sociales desfavorecidos. En ese sentido, la enfermedad podría ser determinada por las desigualdades sociales de salud presentes en el país. Los datos encontrados son útiles para planificar acciones efectivas enfocadas a garantizar una red de protección social para niños con síndrome congénito por el virus del Zika y sus familias.

Risk factors associated with cluster size of Mycobacterium tuberculosis (Mtb) of different RFLP lineages in Brazil.

BACKGROUND: Tuberculosis (TB) transmission is influenced by patient-related risk, environment and bacteriological factors. We determined the risk factors associated with cluster size of IS6110 RFLP based genotypes of Mycobacterium tuberculosis (Mtb) isolates from Vitoria, Espirito Santo, Brazil. METHODS: Cross-sectional study of new TB cases identified in the metropolitan area of Vitoria, Brazil between 2000 and 2010. Mtb isolates were genotyped by the IS6110 RFLP, spoligotyping and RDRio. The isolates were classified according to genotype cluster sizes by three genotyping methods and associated patient epidemiologic characteristics. Regression Model was performed to identify factors associated with cluster size. RESULTS: Among 959 Mtb isolates, 461 (48%) cases had an isolate that belonged to an RFLP cluster, and six clusters with ten or more isolates were identified. Of the isolates spoligotyped, 448 (52%) were classified as LAM and 412 (48%) as non-LAM. Our regression model found that 6-9 isolates/RFLP cluster were more likely belong to the LAM family, having the RDRio genotype and to be smear-positive (adjusted OR = 1.17, 95% CI 1.08-1.26; adjusted OR = 1.25, 95% CI 1.14-1.37; crude OR = 2.68, 95% IC 1.13-6.34; respectively) and living in a Serra city neighborhood decrease the risk of being in the 6-9 isolates/RFLP cluster (adjusted OR = 0.29, 95% CI, 0.10-0.84), than in the others groups. Individuals aged 21 to 30, 31 to 40 and > 50 years were less likely of belonging the 2-5 isolates/RFLP cluster than unique patterns compared to individuals < 20 years of age (adjusted OR = 0.49, 95% CI 0.28-0.85, OR = 0.43 95% CI 0.24-0.77and OR = 0. 49, 95% CI 0.26-0.91), respectively. The extrapulmonary disease was less likely to occur in those infected with strains in the 2-5 isolates/cluster group (adjustment OR = 0.45, 95% CI 0.24-0.85) than unique patterns. CONCLUSIONS: We found that a large proportion of new TB infections in Vitoria is caused by prevalent Mtb genotypes belonging to the LAM family and RDRio genotypes. Such information demonstrates that some genotypes are more likely to cause recent transmission. Targeting interventions such as screening in specific areas and social risk groups, should be a priority for reducing transmission.

Treatment outcomes of MDR-tuberculosis patients in Brazil: a retrospective cohort analysis.

BACKGROUND: Multidrug-resistant tuberculosis (MDR-TB) is a threat for the global TB epidemic control. Despite existing evidence that individualized treatment of MDR-TB is superior to standardized regimens, the latter are recommended in Brazil, mainly because drug-susceptibility tests (DST) are often restricted to first-line drugs in public laboratories. We compared treatment outcomes of MDR-TB patients using standardized versus individualized regimens in Brazil, a high TB-burden, low resistance setting. METHODS: The 2007-2013 cohort of the national electronic database (SITE-TB), which records all special treatments including drug-resistance, was analysed. Patients classified as MDR-TB in SITE-TB were eligible. Treatment outcomes were classified as successful (cure/treatment completed) or unsuccessful (failure/relapse/death/loss to follow-up). The odds for successful treatment according to type of regimen were controlled for demographic and clinical variables. RESULTS: Out of 4029 registered patients, we included 1972 recorded from 2010 to 2012, who had more complete outcome data. The overall success proportion was 60%. Success was more likely in non-HIV patients, sputum-negative at baseline, with unilateral disease and without prior DR-TB. Adjusted for these variables, those receiving standardized regimens had 2.7-fold odds of success compared to those receiving individualized treatments when failure/relapse were considered, and 1.4-fold odds of success when death was included as an unsuccessful outcome. When loss to follow-up was added, no difference between types of treatment was observed. Patients who used levofloxacin instead of ofloxacin had 1.5-fold odds of success. CONCLUSION: In this large cohort of MDR-TB patients with a low proportion of successful outcomes, standardized regimens had superior efficacy than individualized regimens, when adjusted for relevant variables. In addition to the limitations of any retrospective observational study, database quality hampered the analyses. Also, decision on the use of standard or individualized regimens was possibly not random, and may have introduced bias. Efforts were made to reduce classification bias and confounding. Until higher-quality evidence is produced, and DST becomes widely available in the country, our findings support the Brazilian recommendation for the use of standardized instead of individualized regimens for MDR-TB, preferably containing levofloxacin. Better quality surveillance data and DST availability across the country are necessary to improve MDR-TB control in Brazil.

Risk factors for differential outcome following directly observed treatment (DOT) of slum and non-slum tuberculosis patients: a retrospective cohort study.

BACKGROUND: Brazil's National Tuberculosis Control Program seeks to improve tuberculosis (TB) treatment in vulnerable populations. Slum residents are more vulnerable to TB due to a variety of factors, including their overcrowded living conditions, substandard infrastructure, and limited access to healthcare compared to their non-slum dwelling counterparts. Directly observed treatment (DOT) has been suggested to improve TB treatment outcomes among vulnerable populations, but the program's differential effectiveness among urban slum and non-slum residents is not known. METHODS: We retrospectively compared the impact of DOT on TB treatment outcome in residents of slum and non-slum census tracts in Rio de Janeiro reported to the Brazilian Notifiable Disease Database in 2010. Patient residential addresses were geocoded to census tracts from the 2010 Brazilian Census, which were identified as slum (aglomerados subnormais -AGSN) and non-slum (non-AGSN) by the Census Bureau. Homeless and incarcerated cases as well as those geocoded outside the city's limits were excluded from analysis. RESULTS: In 2010, 6,601 TB cases were geocoded within Rio de Janeiro; 1,874 (27.4 %) were residents of AGSN, and 4,794 (72.6 %) did not reside in an AGSN area. DOT coverage among AGSN cases was 35.2 % (n = 638), while the coverage in non-AGSN cases was 26.2 % (n = 1,234). Clinical characteristics, treatment, follow-up, cure, death and abandonment were similar in both AGSN and non-AGSN TB patients. After adjusting for covariates, AGSN TB cases on DOT had 1.67 (95 % CI: 1.17, 2.4) times the risk of cure, 0.61 (95 % CI: 0.41, 0.90) times the risk of abandonment, and 0.1 (95 % CI: 0.01, 0.77) times the risk of death from TB compared to non-AGSN TB cases not on DOT. CONCLUSION: While DOT coverage was low among TB cases in both AGSN and non-AGSN communities, it had a greater impact on TB cure rate in AGSN than in non-AGSN populations in the city of Rio de Janeiro.

Genotypic and Spatial Analysis of Mycobacterium tuberculosis Transmission in a High-Incidence Urban Setting.

BACKGROUND: Genotyping Mycobacterium tuberculosis isolates allows study of dynamics of tuberculosis transmission, while geoprocessing allows spatial analysis of clinical and epidemiological data. Here, genotyping data and spatial analysis were combined to characterize tuberculosis transmission in Vitória, Brazil, to identify distinct neighborhoods and risk factors associated with recent tuberculosis transmission. METHODS: From 2003 to 2007, 503 isolates were genotyped by IS6110 restriction fragment length polymorphism (RFLP) and spoligotyping. The analysis included kernel density estimation, K-function analysis, and a t test distance analysis. Mycobacterium tuberculosis isolates belonging to identical RFLP patterns (clusters) were considered to represent recent tuberculosis infection (cases). RESULTS: Of 503 genotyped isolates, 242 (48%) were categorized into 70 distinct clusters belonging to 12 RFLP families. The proportion of recent transmission was 34.2%. Kernel density maps indicated 3 areas of intense concentration of cases. K-function analysis of the largest RFLP clusters and families showed they co-localized in space. The distance analysis confirmed these results and demonstrated that unique strain patterns (controls) randomly distributed in space. A logit model identified young age, positive smear test, and lower Index of Quality of Urban Municipality as risk factors for recent transmission. The predicted probabilities for each neighborhood were mapped and identified neighborhoods with high risk for recent transmission. CONCLUSIONS: Spatial and genotypic clustering of M. tuberculosis isolates revealed ongoing active transmission of tuberculosis caused by a small subset of strains in specific neighborhoods of the city. Such information provides an opportunity to target tuberculosis transmission control, such as through rigorous and more focused contact investigation programs.

Tuberculosis DALY-Gap: Spatial and Quantitative Comparison of Disease Burden Across Urban Slum and Non-slum Census Tracts.

To quantitatively assess disease burden due to tuberculosis between populations residing in and outside of urban informal settlements in Rio de Janeiro, Brazil, we compared disability-adjusted life years (DALYs), or "DALY-gap." Using the 2010 Brazilian census definition of informal settlements as aglomerados subnormais (AGSN), we allocated tuberculosis (TB) DALYs to AGSN vs non-AGSN census tracts based on geocoded addresses of TB cases reported to the Brazilian Information System for Notifiable Diseases in 2005 and 2010. DALYs were calculated based on the 2010 Global Burden of Disease methodology. DALY-gap was calculated as the difference between age-adjusted DALYs/100,000 population between AGSN and non-AGSN. Total TB DALY in Rio in 2010 was 16,731 (266 DALYs/100,000). DALYs were higher in AGSN census tracts (306 vs 236 DALYs/100,000), yielding a DALY-gap of 70 DALYs/100,000. Attributable DALY fraction for living in an AGSN was 25.4%. DALY-gap was highest for males 40-59 years of age (501 DALYs/100,000) and in census tracts with <60% electricity (12,327 DALYs/100,000). DALY-gap comparison revealed spatial and quantitative differences in TB burden between slum vs non-slum census tracts that were not apparent using traditional measures of incidence and mortality. This metric could be applied to compare TB burden or burden for other diseases in mega-cities with large informal settlements for more targeted resource allocation and evaluation of intervention programs.

Determinants of tuberculosis in Brazil: from conceptual framework to practical application.

OBJECTIVE: To leverage a conceptual analytical model for TB determination to identify factors that influence emergence of new cases of tuberculosis (TB) and poor TB treatment outcomes in Brazil. METHODS: This was a cross-sectional study based on data from Brazil's Notifiable Disease Surveillance System database (SINAN). It included all confirmed, incident TB cases reported in Brazil in 2007 - 2011: a total of 432 958 TB cases, of which 318 465 cases with complete data on treatment outcomes were included. Analysis to explain the causal network that influences TB treatment outcomes was based on a theoretical model for determining TB. Adjusted analyses were used to assess the model fit. Hierarchical logistic regression was used to model the dichotomous TB outcome; hierarchical polytomous regression was used for multinomial TB outcome. RESULTS: Of the 318 465 TB cases included, 222 186 (69.8%) were classified as "cured" and 96 279 (30.2%) as "treatment failure." Among the latter, 37 604 (11.8%) abandoned treatment; 13 193 (4.1%) died due to TB; 15 440 (4.8%) died due to causes other than TB; 28 848 (9.1%) were transferred to another municipality; and 1 194 (0.4%) developed multidrug-resistant TB. The dichotomous models were more likely to show spurious associations when compared with the polytomous model. In the polytomous model, individuals assigned to Directly Observed Treatment Short-course were more likely to be cured than others. CONCLUSIONS: Theoretical models are dynamic structures that need ongoing re-evaluation according to new findings; therefore, this is not a definitive proposal for a TB determination model or analysis plan, but rather a proposal that, at present, is adequate in Brazil and has the potential to be extrapolated or adapted to other areas.

Epidemiology of extrapulmonary tuberculosis in Brazil: a hierarchical model.

BACKGROUND: Although extrapulmonary tuberculosis (EPTB) is less frequent than Pulmonary Tuberculosis (PTB) and is a secondary target for national TB control programs, its significance has increased worldwide during the HIV epidemic. The objective of this study was to examine the epidemiology of EPTB in Brazil between 2007 and 2011. METHODS: Cross-sectional study involving all cases of TB reported to the Brazilian Notifiable Diseases Surveillance System (Sistema de Informações de Agravo de Notificação - SINAN) in Brazil between 2007 and 2011. Sociodemographic and clinical characteristics of patients with exclusively PTB and exclusively EPTB were compared. Following analysis with Pearson's chi-square test, variables with p < 0.05 were included in a hierarchical regression model. Variables with p < 0.05 in the corresponding level were kept in the model. RESULTS: A total of 427,548 cases of TB were included. Of these, 356,342 cases (83.35%; 95% confidence interval (CI) 83.23% - 83.45%) were PTB, 57,217 (13.37%; 95% CI 13.28% - 13.48%) were EPTB, 13,989 (3.27%; 95% CI 3.21% - 3.32%) were concurrent pulmonary and extrapulmonary TB. Patients with EPTB were mainly white (16.7%), and most (29.1%) patients had five to eight years of education. Among comorbidities, HIV infection was prominent (OR 2.15; 95% CI 2.09 - 2.21), although the proportion of cases awaiting test results or untested was high (39%). Ethanol use (OR 0.45; 95% CI 0.43 - 0.46), diabetes mellitus (OR 0.54; 95% CI 0.51 - 0.57) and mental illness (OR 0.88; 95% CI 0.82 - 0.95) were associated with PTB. CONCLUSIONS: Thirteen percent of patients diagnosed with TB in Brazil have only EPTB. More effective diagnostic strategies and control measures are needed to reduce the number of cases of extrapulmonary TB in Brazil.

Factors associated with tuberculosis by HIV status in the Brazilian national surveillance system: a cross sectional study.

BACKGROUND: Over the last decade tuberculosis (TB) incidence and mortality in Brazil have been steadily declining. However, this downward trend has not been observed among HIV-infected patients. We describe the epidemiological and clinical profile of TB patients by HIV status using the Brazilian National Surveillance System. METHODS: All TB diagnoses with HIV status information between January 1, 2007 and December 31, 2011 were categorized as either HIV or non-HIV at time of TB diagnosis. Co-infected patients (TB-HIV) were compared to TB patients with no HIV-infection using a hierarchical logistic regression model using Stata 13.0. RESULTS: The prevalence of TB-HIV co-infection was 19% among adults ≥ 15 years of age. We analyzed data from 243,676 individuals, of whom 46,466 were TB-HIV and 197,210 were only TB cases. The following factors increased risk of co-infection: male sex (OR: 1.06, 95% CI 1.03-1.10), 20 to 39 years of age (OR = 4.82, 95% CI 4.34-5.36), black (OR = 1.08, 95% CI 1.04-1.13), 4-7 years of education (OR = 1.13, 95% CI 1.19-1.28), diagnosed following default (OR = 2.65, 95% CI 1.13-6.25), presenting with pulmonary and extra-pulmonary forms of TB simultaneously (OR = 2.80, 95% CI 1.56-5.02), presenting with histopathologic examination suggestive of TB (OR = 2.15, 95% CI 1.13-4.07). Co-infected patients were less likely to live in rural areas (OR = 0.45, 95% CI 0.42-0.48), have diabetes (OR = 0.45, 95% CI 0.40-0.50) and be smear positive (OR = 0.55, 95% CI 0.32-0.95), and co-infected patients had higher risk of default (OR = 2.96, 95% CI 2.36-3.71) and death from TB (OR = 5.16, 95% CI 43.04-5.77). CONCLUSIONS: The prevalence of co-infection with HIV among TB patients is 19% in Brazil. By identifying predictors of co-infection targeted interventions can be developed to prevent both TB and HIV, and to diagnose each disease earlier and ultimately decrease poor treatment outcomes and death.

Social protection in areas vulnerable to tuberculosis: a mixed methods study in São Luís, Maranhão.

OBJECTIVES: to analyze the risk areas for tuberculosis and the influences of social protection on the development of treatment for the disease in the municipality of São Luís, Maranhão. METHODS: this is explanatory sequential mixed method research. In the quantitative phase, the data were obtained from the Notifiable Diseases Information System from 2010 to 2019, with georeferencing being carried out to identify areas vulnerable to tuberculosis. In the qualitative phase, semi-structured interviews were carried out with individuals who received social benefits. RESULTS: 7,381 cases were geocoded, and, from the purely spatial scanning analysis, it was possible to identify 13 spatial clusters of risk. As for the interviews, there was a positive relationship between patient improvement and receiving benefits. CONCLUSIONS: geographic space and social determinants are relevant for reorienting monitoring actions for the conditions that generate the health-disease process.

International Migration, Refugees, and Spread of Tuberculosis in Brazil: Analysis of Clusters, Trends, and Associated Factors (2010-2021).

BACKGROUND: International migration is a global phenomenon with significant implications on the health-disease process due to exposures along transit routes and local/destination epidemiological indicators. We aimed to analyze the transmission and spread of tuberculosis among international migrants and refugees from a spatiotemporal perspective and the associated factors. METHOD: This was an ecological study of cases of tuberculosis in international migrants in Brazil, between 2010 and 2021. Annual incidence rates were calculated and spatiotemporal scan techniques were used to identify municipalities at risk. Multiple logistic regression was used to identify factors associated with tuberculosis in international migrants. RESULTS: A total of 4037 cases of tuberculosis were reported in Brazil in international migrants. Municipalities at risk for this event were identified using the spatiotemporal scan technique, and a cluster was identified with ITT: +52.01% and ETT: +25.60%. A higher probability of TB infection was identified in municipalities with a TB incidence rate >14.40 cases/100 inhabitants, population >11,042 inhabitants, Gini index >0.49, and illiteracy rate >13.12%. A lower probability was found in municipalities with average per capita household income >BRL 456.43. CONCLUSIONS: It is recommended that health authorities implement monitoring and rigorous follow-up in affected areas to ensure proper diagnosis and treatment completion for international migrants, preventing disease spread to other communities.

Correlation between the spatial distribution of leprosy and socioeconomic indicators in the city of Vitória, State of ES, Brazil.

INTRODUCTION: Leprosy is a disease that is directly linked to poverty. The number of cases in Vit6ria, the capital city of Espírito Santo, has been decreasing in recent years, but the disease remains highly endemic. This research aimed to identify relationships between the epidemiological status of leprosy and socioeconomic indicators during the period from 2005 to 2009. METHODS: An ecological study was performed based on the spatial distribution of leprosy in Vit6ria, Espírito Santo, between 2005 and 2009. The source data used were records available at the Secretary of State for Health of the Espírito Santo. We used the Urban Quality Index (IQU) as the leprosy-associated socioeconomic variable. The data were analysed with covariate and spatial effects by the WinBugs programme (Version 1.4) and R (Version 2.12). RESULTS: The spatial distribution of leprosy in the district is not uniform. By studying the geographic distribution of leprosy cases, and the risks estimated by the complete Bayesian model, it was possible to gain further insight into the distribution of leprosy cases. It was noted that neighbourhoods with a low IQU have a higher leprosy case detection rate than neighbourhoods with a higher IQU. This result reinforced the theory that a low IQU is associated with the emergence of leprosy. CONCLUSION: The model methodology adopted enabled the verification of the effect of the influence of covariates related to the social determinants of health as well as the spatial structure, in contrast to the gross rate method that does not aggregate this information. The results obtained suggest that leprosy control may be promoted by improving the socioeconomic indicators of neighbourhoods, and highlights the need for implementation of health policies aimed at people who live in areas where they are at greatest risk of getting sick.

Follow-up of patients diagnosed with and treated for tuberculosis in Brazil: financial burden on the household.

OBJECTIVE: To evaluate the implications of the proportion of annual family income spent in the pre- and post-diagnosis periods in tuberculosis patients followed for after at least one year after completing tuberculosis treatment in Brazil. METHODS: This was a cross-sectional study of tuberculosis patients followed for at least one year after completing tuberculosis treatment in five Brazilian capitals (one in each region of the country). RESULTS: A total of 62 patients were included in the analysis. The overall average cost of tuberculosis was 283.84 Brazilian reals (R$) in the pre-diagnosis period and R$4,161.86 in the post-diagnosis period. After the costs of tuberculosis disease, 71% of the patients became unemployed, with an overall increase in unemployment; in addition, the number of patients living in nonpoverty decreased by 5%, the number of patients living in poverty increased by 6%, and the number of patients living in extreme poverty increased by 5%. The largest proportion of annual household income to cover the total costs of tuberculosis was for the extremely poor (i.e., 40.37% vs. 11.43% for the less poor). CONCLUSIONS: Policies to mitigate catastrophic costs should include interventions planned by the health care system and social protection measures for tuberculosis patients with lower incomes in order to eliminate the global tuberculosis epidemic by 2035-a WHO goal in line with the United Nations Sustainable Development Goals.