Tuberculosis among children visiting friends & relatives.

BACKGROUND: Most paediatric tuberculosis (TB) cases in low-TB-incidence countries involve children born to migrant families. This may be partially explained by trips to their countries of origin for visiting friends and relatives (VFR). We aimed to estimate the risk of latent TB infection (LTBI) and TB in children VFR. METHODS: We conducted a prospective multicentric observational study in Catalonia (Spain) from 06/2017 to 12/2019. We enrolled children aged < 15 years with a negative tuberculin skin test (TST) at baseline and at least one parent from a high-TB-incidence country, and who had travelled to their parent's birth country for ≥21 days. TST and QuantiFERON-TB Gold Plus (QFT-Plus) were performed within 8-12 weeks post-return. LTBI was defined as a TST ≥5 mm and/or a positive QFT-Plus. RESULTS: Five hundred children completed the study, equivalent to 78.2 person-years of follow-up (PYFU). Thirteen children (2.6%) were diagnosed with LTBI (16.6/per100 PYFU,95%CI = 8.8-28.5), including two cases (0.4%) of TB (2.5/per100 PYFU, 95%CI = 0.3-9.3). LTBI incidence rates remained high after excluding BCG-vaccinated children (9.7/per100 PYFU,95%CI = 3.9-20.0). Household tobacco smoke exposure was associated with LTBI (aOR = 3.9, 95%CI = 1.1-13.3). CONCLUSIONS: The risk of LTBI in children VFR in high-TB-incidence countries may equal, or perhaps even exceed, the infection risk of the native population. The primary associated risk factor was the presence of smokers in the household. Furthermore, the incidence rate of active TB largely surpassed that of the countries visited. Children VFR in high-TB-incidence countries should be targeted for diagnostic and preventive interventions.

Community-based actions in consulates: a new paradigm for opportunities for systematic integration in Chagas disease detection.

Research has shown that multidimensional approaches to Chagas disease (CD), integrating its biomedical and psycho-socio-cultural components, are successful in enhancing early access to diagnosis, treatment and sustainable follow-up.For the first time, a consulate was selected for a community-based CD detection campaign. Two different strategies were designed, implemented and compared between 2021 and 2022 at the Consulate General of Bolivia and a reference health facility in Barcelona open to all Bolivians in Catalonia.Strategy 1 consisted in CD awareness-raising activities before referring those interested to the reference facility for infectious disease screening. Strategy 2 offered additional in-situ serological CD screening. Most of the 307 participants were Bolivian women residents in Barcelona. In strategy 1, 73 people (35.8% of those who were offered the test) were screened and 19.2% of them were diagnosed with CD. Additionally, 53,4% completed their vaccination schedules and 28.8% were treated for other parasitic infections (strongyloidiasis, giardiasis, eosinophilia, syphilis). In strategy 2, 103 people were screened in-situ (100% of those who were offered the test) and 13.5% received a CD diagnosis. 21,4% completed their vaccination schedule at the reference health facility and 2,9% were referred for iron deficiency anemia, strongyloidiasis or chronic hepatitis C.The fact that the screening took place in an official workplace of representatives of their own country, together with the presence of community-based participants fueled trust and increased CD understanding. Each of the strategies assessed had different benefits. Opportunities for systematic integration for CD based on community action in consulates may enhance early access to diagnosis, care and disease prevention.

Opportunistic Community Screening of Chronic Chagas Disease Using a Rapid Diagnosis Test in Pharmacies in Barcelona (Catalonia, Spain): Study Protocol and Pilot Phase Results.

Objectives: This study aimed to report the protocol and results from the pilot phase of an opportunistic CP-based CD screening program in Barcelona, Spain. Methods: Three strategies according to recruitment approach were designed: passive, active and active-community. The study process consisted of signing the informed consent form, recording the patient's data in a web-based database system, and performing the rapid test and blood collection on dry paper. Results: Nineteen pharmacies participated and 64 patients were included during the pilot phase of the study. The rapid diagnostic test (RDT) was positive in 2/64 (3.13%) cases. Of the 49 DBS samples that arrived at the laboratory, 22 (45%) were collected incorrectly. After quantitative and qualitative assessment of the program, the dry paper sample and passive strategy were ruled out. Conclusion: DBS sampling and the passive strategy are not suitable for CD screening in community pharmacies. There is a need to expand the number of participating pharmacies and individuals to determine whether conducting a RDT in community pharmacies is an effective screening method to increase access to CD diagnosis in a non-endemic area.

The multidimensional comprehension of Chagas disease. Contributions, approaches, challenges and opportunities from and beyond the Information, Education and Communication field

Chagas is a complex, multidimensional phenomenon in which political, economic, environmental, biomedical, epidemiological, psychological, and sociocultural factors intersect. Nonetheless, the hegemonic conceptualisation has long envisioned Chagas as primarily a biomedical question, while ignoring or downplaying the other dimensions, and this limited view has reinforced the disease's long neglect. Integrating the multiple dimensions of the problem into a coherent approach adapted to field realities and needs represents an immense challenge, but the payoff is more effective and sustainable experiences, with higher social awareness, increased case detection and follow-up, improved adherence to care, and integrated participation of various actors from multiple action levels. Information, Education, and Communication (IEC) initiatives have great potential for impact in the implementation of multidimensional programs of prevention and control successfully customised to the diverse and complex contexts where Chagas disease persists.

How people affected by Chagas disease have struggled with their negligence: history, associative movement and World Chagas Disease Day

It is well documented that Chagas disease (CD) can pose a public health problem to countries. As one of the World Health Organization Neglected Tropical Diseases undoubtedly calls for comprehensive healthcare, transcending a restricted biomedical approach. After more than a century since their discovery, in 1909, people affected by CD are still frequently marginalised and/or neglected. The aim of this article is to tell the story of their activism, highlighting key historical experiences and successful initiatives, from 1909 to 2019. The first association was created in 1987, in the city of Recife, Brazil. So far, thirty associations have been reported on five continents. They were created as independent non-profit civil society organisations and run democratically by affected people. Among the common associations' objectives, we notably find: increase the visibility of the affected; make their voice heard; build bridges between patients, health system professionals, public health officials, policy makers and the academic and scientific communities. The International Federation of Associations of People Affected by CD - FINDECHAGAS, created in 2010 with the input of the Americas, Europe and the Western Pacific, counts as one of the main responses to the globalisation of CD. Despite all the obstacles and difficulties encountered, the Federation has thrived, grown, and matured. As a result of this mobilisation along with the support of many national and international partners, in May 2019 the 72nd World Health Assembly decided to establish World Chagas Disease Day, on 14 April. The associative movement has increased the understanding of the challenges related to the disease and breaks the silence around Chagas disease, improving surveillance, and sustaining engagement towards the United Nations 2030 agenda.

["Heparjoc-Actúa": educational tool created through a process of participatory action research with vulnerable immigrant groups to improve accessibility to diagnosis of hepatitis B.] / "HEPARJOC-ACTÚA": herramienta educativa creada a través de un proceso de investigación-acción participativa con colectivos inmigrantes vulnerables para mejorar la accesibilidad al diagnóstico de la hepatitis B.

OBJECTIVE: The World Health Organization estimates that 257 million people suffer from chronic infection by the hepatitis B (HB) virus. It is common for diagnosis to be delayed or never given at all. In Spain, immigrants that come from endemic areas present a prevalence of infection of around 8%. In the year 2015, this study was begun with the aiml of improving accessibility to hepatitis B diagnoses in immigrant communities. METHODS: A descriptive qualitative study was carried out, based on participatory action research (IAP). It was divided into two cycles: in the first cycle, after forming a motor group (GIAP), a participatory community assessment (DCP) was performed with the population, through a descriptive-interpretative qualitative study (ECDI) with 3 focal groups (n=17). A narrative analysis was then performed of thematic content. In the second cycle, two collaborative workshops (coworking) were held to create an educational tool (HEPARJOC) and to co-create an action plan (PDA). As a pilot test, the PDA was put into practice through eight workshops (n=56). A knowledge questionnaire was used to compare the median number of correct responses before and after the workshop, using the t of Student for paired data. RESULTS: A GIAP was formed with 8 members of different sectors and community spaces. In the DCP it was observed that there was a lack of knowledge about different aspects of hepatitis B. Visual, interactive materials were proposed as educational tools, and "HEPARJOC" was created as the final product. In the pilot test of the PDA, the median of correct responses to the knowledge questionnaire about HB was 7.7 (DE=3) before the workshop, and 10.6 (DE=0.2) afterward. The improvement of the median was 2.9 points (IC 95% 2.2-3.6), which is statistically significant (p<0.001). 30 people sought screening (53.6% of participants), and 23 of those people were screened (41% of participants). CONCLUSIONS: "HEPARJOC-ACTUA" is a strategy that could contribute to transforming knowledge and improving accessibility to hepatitis B diagnosis in immigrant communities. Key words: Infectious diseases, hepatitis B, community health, community health agents, health education, participatory action research, immigration. Key words: Infectious.

OBJETIVO: La Organización Mundial de la Salud estima que 257 millones de personas padecen infección crónica por el virus de la hepatitis B (HB). Es habitual que el diagnóstico se retrase o que nunca se llegue a realizar. En España, los inmigrantes procedentes de áreas endémicas presentan prevalencias en torno al 8%. En el año 2015, se inició este estudio con el objetivo de mejorar la accesibilidad al diagnóstico de la hepatitis B en colectivos inmigrantes. METODOS: Se realizó un estudio cualitativo descriptivo, basado en la investigación acción participativa (IAP). Se dividió en dos ciclos: en el primer ciclo, después de configurar un grupo motor (GIAP), se realizó un diagnóstico comunitario participativo (DCP) con la población, a través de un estudio cualitativo descriptivo-interpretativo (ECDI) con 3 grupos focales (n=17). Se llevó a cabo un análisis narrativo de contenido temático. En el segundo ciclo, se realizaron 2 talleres de trabajo colaborativo (coworking) para crear una herramienta educativa (HEPAJOC) y coconstruir un plan de acción (PDA). Como prueba piloto se llevó a cabo este PDA a través 8 talleres (n=56). Se utilizó un cuestionario de conocimientos para comparar la media de respuestas correctas pre y post taller utilizando el t de Student para datos apareados. RESULTADOS: Se configuró un GIAP con 8 miembros de diferentes sectores y espacios comunitarios. En el DCP se observó que existía un desconocimiento en diferentes aspectos sobre la hepatitis B. Se propusieron, como herramientas educativas, materiales visuales e interactivos, elaborando como producto final el "HEPARJOC". En la prueba piloto del PDA, la media de las respuestas correctas al cuestionario de conocimientos sobre la HB fue de 7,7 (DE=3) previamente, y de 10,6 (DE=0,2) posteriormente. La mejoría de la media fue de 2,9 puntos (IC 95% 2,2-3,6), siendo estadísticamente significativa (p<0,001). Solicitaron el cribado 30 personas (53,6%), siendo cribadas 23 (41%). CONCLUSIONES: "HEPARJOC-ACTUA" es una estrategia que puede contribuir a transformar conocimientos y a mejorar la accesibilidad al diagnóstico de la hepatitis B en colectivos inmigrantes.

A Community-Based Intervention for the Detection of Chagas Disease in Barcelona, Spain.

Chagas disease (CHD) has become a challenge in Spain due to the high prevalence of immigrants coming from endemic areas. One of the main difficulties for its control and elimination is its underdiagnosis. The identification and integral treatment of CHD are key to increasing rates of diagnosis, overcoming psycho-social barriers and avoiding CHD progression. Community interventions with in situ screening have proven to be a useful tool in detecting CHD among those with difficulties accessing health services. To determine the underdiagnosis rate of the population most susceptible to CHD among those attending two different Bolivian cultural events celebrated in Barcelona; to describe the sociodemographic characteristics of the people screened; and to analyse the results of the screening. The community interventions were carried out at two Bolivian cultural events held in Barcelona in 2017. Participants were recruited through community health agents. A questionnaire was given to determine the participants' prior knowledge of CHD. In situ screening was offered to those who had not previously been screened. Those who did not wish to be screened were asked for the reason behind their decision. Results were gathered in a database and statistical analyses were performed using STATA v14. 635 interviews were carried out. 95% of the subjects reported prior knowledge of CHD. 271 subjects were screened: 71.2% women and 28.8% men, of whom 87.8% were of Bolivian origin. The prevalence of CHD was 8.9%. Community health interventions with in situ screening are essential to facilitating access to diagnosis.

Que no tengan miedo de nosotros:el Chagas según los propios protagonistas / Não tenham medo de nós: a doença de Chagas segundo os protagonistas / Do not be afraid of us: Chagas disease as explained by people affected by it

El artículo da cuenta de un estudio internacional realizado entre octubre de 2011 y enero de 2012, como fundamento para el diseño y elaboración de un material audiovisual (spot) con el objeto de sensibilizar y visibilizar la problemática del Chagas. La investigación, de carácter cualitativo, recogió los datos de 38 encuestas, respondidas por personas afectadas y especialistas en la temática. La información para cada grupo se ordenó según aspectos que las personas asociaban con la palabra Chagas, y dificultades, retos, desafíos y logros vinculados. Para cada punto se presenta un análisis de las respuestas, relatos y anécdotas relacionadas. Las conclusiones refuerzan la necesidad de conocer y dar a conocer las dificultades que viven las personas afectadas por el Chagas, considerando que se trata de una realidad que tiene diversas manifestaciones dependiendo del contexto...

O artigo apresenta um estudo internacional realizado entre outubro de 2011 e janeiro de 2012, no qual se baseou o desenho e elaboração de um vídeo (spot) que tinha como objetivo a sensibilização e promoção da visibilidade da problemática vinculada à doença de Chagas. A pesquisa, de caráter qualitativo, analisou a informação recolhida por meio de 38 questionários respondidos por pessoas afetadas e especialistas sobre a doença. A informação, para cada um dos dois grupos, foi classificada de acordo com os aspectos que as pessoas associavam com a palavra Chagas, e as dificuldades, adversidades, desafios e conquistas vinculadas com a doença. Para cada um dos referidos aspectos, apresenta-se uma análise das respostas, relatos e anedotas. As conclusões reforçam a necessidade de se conhecer e divulgar as dificuldades vividas pelas pessoas afetadas pela doença de Chagas, tendo em mente que se trata de uma realidade que se manifesta de forma diversa dependendo do contexto...

This paper presents an international study that was conducted between October 2011 and January 2012, in which a video (spot) to boost awareness and raise the profile of Chagas disease issues was designed and developed. This study was of qualitative nature and analyzed information that was gathered from 38 questionnaires that had been answered by individuals affected by the disease and by specialists on this disease. The information from each group was classified according to factors that they associated with the word Chagas, along with the difficulties, adversities, challenges, objectives and achievements relating to the disease. The responses, reports and anecdotes relating to each of these factors were analyzed. The conclusions emphasize the need to know and make known the difficulties that people affected by Chagas disease experience, bearing in mind that the realities are manifested differently depending on the context...

Imported malaria in a cosmopolitan European city: a mirror image of the world epidemiological situation.

BACKGROUND: International travel and migration have been related with an increase of imported malaria cases. There has been considerable immigration to Barcelona from low-income countries (LIC) in recent years. The objective is to describe the epidemiology and to determine the trends of the disease in Barcelona. METHODS: Analysis of the cases notified among city residents between 1989 and 2005. Patients were classified as: tourists, voluntary workers, resident immigrants (visiting friends and relatives, VFR) and recently arrived immigrants. An analysis was conducted using the chi2 test and comparison of means. As a measure of association we calculated the Relative Risk (RR) and Odds Ratio (OR) with a Confidence Interval of 95% (CI) and carried out a trends analysis. RESULTS: Of the total of 1,579 imported cases notified, 997 (63.1%) lived in Barcelona city, and 55.1% were male. The mean age of patients was 32.7 years. The incidence increased from 2.4 cases/100,000 in 1989 to 3.5 cases/100,000 in 2005 (RR 1.46 CI:1.36-1.55). This increase was not statistically significant (trends analysis, p = 0.36). In terms of reason for travelling, 40.7% were VFR, 33.6% tourists, 12.1% voluntary workers and 13.6% were recently arrived immigrants. The most frequent species found was Plasmodium falciparum (71.3%), mainly in visitors to Africa (OR = 2.3, CI = 1.7-3.2). The vast majority (82.2%) had had some contact with Africa (35.9% with Equatorial Guinea, a Spanish ex-colony) and 96.6% had not completed chemoprophylaxis. Six deaths were observed, all tourists who had travelled to Africa and not taken chemoprophylaxis (3.9% fatality rate). CONCLUSION: Over the period studied there is an increase in malaria incidence, however the trend is not statistically significant. Lack of chemoprophylaxis compliance and the association between Africa and P. falciparum are very clear in the imported cases. Most of the patients with malaria did not take chemoprophylaxis.

[Screening of microfilariasis in blood (Loa Loa) among the immigrant population in endemic areas]. / Cribaje de microfilariasis sanguínea (Loa loa) en la poblacion inmigrante de zonas endemicas.

BACKGROUND: Given the increasing flux of immigrant population from high-risk areas to our country, the need of screening for loasis arises, despite systematic screening being a debated and poorly evaluated practice to which there is no protocol. This study is aimed at identifying the population to which loasis screening would be most appropriate, by drawing a comparison among four alternatives. METHODS: Case and control group study, involving 30 cases (all those who came to our unit for treatment and who tested positive for Loa Loa in a microfilariae in the blood detection test) and 90 control cases (three controls per case from among the subjects having tested negative for microfiliariae in the blood chosen at random without any pairing criteria). RESULTS: Of the 1,638 subjects on whom the microfilariae blood test was performed, 30 tested positive (1.8%; 1.2-2.6%). Of these 30 cases of loasis, 76.7% (23; 57.7-90.1%) had eosinophilia (OR 8.8; 3.3-23.1; p<0.0001) and 30.0% (9; 14.7-49.4%) compatible clinical symptoms (OR 2.8; 1.0-7.5; p=0.04). If we were to apply the screening test to the entire immigrant population coming from endemic areas, we would have to perform 54.6 tests to detect one case. If we were to perform the test on patients showing eosinophilia and/or compatible clinical symptoms, we would have to perform a smaller number of tests for every case detected (NNS=29; IC=21-48), but there would be 16.7% (5; 5.7-34.7%) false negatives. CONCLUSIONS: Conducting a screening test with determination of microfiliariae in the blood on the immigrant population coming from Central and West Africa, independently of the presence of eosinophilia or compatible clinical symptoms, would be indicated, provided that the necessary resources are available.

Prehistoric tuberculosis in America: adding comments to a literature review

Tuberculosis is a prehistoric American human disease. This paper reviews the literature and discusses hypotheses for origins and epidemiological patterns of prehistoric tuberculosis. From the last decades, 24 papers about prehistoric tuberculosis were published and 133 cases were reviewed. In South America most are isolated case studies, contrary to North America where more skeletal series were analyzed. Disease was usually located at the deserts of Chile and Peru, Central Plains in USA, and Lake Ontario in Canada. Skeletal remains represent most of the cases, but 16 mummies have also been described. Thirty individuals had lung disease, 19 of them diagnosed by the ribs. More then 100 individuals had osseous tuberculosis and 26 also had it in other organs. As today, transmission of the infection and establishment of the disease were favored by cultural and life-style changes such as sedentarization, crowding, undernutrition, use of dark and insulated houses, and by the frequency of interpersonal contacts. The papers confirm that despite previous perceptions, tuberculosis seems to have occured in America for millennia. It only had epidemiological expression when special conditions favored its expansion. Occurring as epidemic bursts or low endemic disease, it had differential impact on groups or social segments in America for at least two millennia