Cultural barriers to effective communication between Indigenous communities and health care providers in Northern Argentina: an anthropological contribution to Chagas disease prevention and control.

INTRODUCTION: Ninety percent of the aboriginal communities of Argentina are located in areas of endemic vectorial transmission of Chagas disease. Control activities in these communities have not been effective. The goal of this research was to explore the role played by beliefs, habits, and practices of Pilaga and Wichi indigenous communities in their interaction with the local health system in the province of Formosa. This article contributes to the understanding of the cultural barriers that affect the communication process between indigenous peoples and their health care providers. METHODS: Twenty-nine open ended interviews were carried out with members of four indigenous communities (Pilaga and Wichi) located in central Formosa. These interviews were used to describe and compare these communities' approach to health and disease as they pertain to Chagas as well as their perceptions of Western medicine and its incarnation in local health practice. RESULTS: Five key findings are presented: 1) members of these communities tend to see disease as caused by other people or by the person's violation of taboos instead of as a biological process; 2) while the Pilaga are more inclined to accept Western medicine, the Wichi often favour the indigenous approach to health care over the Western approach; 3) members of these communities do not associate the vector with the transmission of the disease and they have little awareness of the need for vector control activities; 4) indigenous individuals who undergo diagnostic tests and accept treatment often do so without full information and knowledge; 5) the clinical encounter is rife with conflict between the expectations of health care providers and those of members of these communities. CONCLUSION: Our analysis suggests that there is a need to consider the role of the cultural patterning of health and disease when developing interventions to prevent and control Chagas disease among indigenous communities in Northern Argentina. This is especially important when communicating with these communities about prevention and control. These research findings might also be of value to national and provincial agencies in charge of decreasing the rates of Chagas disease among indigenous populations.

Uso, circulación y significación de los medicamentos en comunidades Pilagá, guaraní, MBYA-Guaraní, Tapiete y Toba / Use, Circulation and Meanings of Pharmaceuticals among Pilagá, Guaraní, Mbya-Garaní, Patipete and Toba Communities

Las prácticas de uso y consumo de medicamentos permiten analizar la inserción de la biomedicina y las acciones de salud pública entre los pueblos indígenas. OBJETIVO: Analizar uso, circulación y significado otorgado a los medicamentos por comunidades tapiete, guaraní, mbya-guaraní, pilagá y toba, en ámbitos rurales y periurbanos de las provincias argentinas de Salta, Formosa y Misiones. MÉTODOS: Estudio descriptivo, comparativo y exploratorio, basado en técnicas cualitativas: observación y entrevistas semiestructuradas realizadas en hospitales, centros de salud, farmacias y hogares de las familias indígenas durante 2012-2013. RESULTADOS: El estudio demostró que los indígenas se proveían de medicamentos por diversas vías. En algunos de los grupos se registró una alta incidencia de automedicación con consumo de analgésicos, antiinflamatorios y antibióticos (amoxicilina), una coexistencia de prácticas culturales propias con las del sistema biomédico y diversos recorridos terapéuticos. Se observó una mayor presencia de medicamentos en los grupos guaraní y tapiete de Salta y la comunidad periurbana toba de Formosa, menor en lapilagá y escasa en la mbya-guaraní. CONCLUSIONES: El vínculo con los medicamentos muestra una gran variabilidad según el grupo étnico. Existe una marcada aceptación, pese a la difícil relación con los servicios de salud. Es necesario considerar las prácticas de la salud y la enfermedad en los pueblos originarios a fin de mejorar las acciones preventivas y de intervención...

Practices related with use and consumption of pharmaceuticals constitute a venue to analyze thein corporation of biomedicine and public health actions among indigenous peoples. OBJECTIVE: To analyze the use, circulation and meaning given to pharmaceuticals by Tapiete, Guaraní, Mbya-Guaraní, Pilagá and Toba indigenous communities from rural and peri-urban areas in the Argentine provinces of Salta, Formosa and Misiones. METHODS: Descriptive, comparative and exploratory study, based on qualitative techniques: observation and semi-structured interviews conducted in hospitals, health centers, pharmacies and houses of indigenous families during 2012-2013. RESULTS: Indigenous peoples obtained pharmaceuticals through different channels. In some of the groups there was a high incidence of self-medication with consumption ofanalgesics, anti-inflammatories and antibiotics (amoxicillin), aswell as a coexistence of native cultural practices and those of the biomedical health system and diverse therapeutic itineraries.There was a larger presence of pharmaceuticals among Guaraní and Tapiete groups in Salta and the peri-urban Toba community in Formosa, less among the Pilagá and scarce among the Mbya-Guaraní. CONCLUSIONS: The relation with pharmaceuticals varies greatly according to the ethnic group. In spite of the difficult relation with health care services, there iswide acceptance of pharmaceuticals. It is necessary to consider the health and illness practices of native peoples to improve preventive measures and interventions...

Transmisión vectorial y congénita del Trypanosoma cruzi en Las Lomitas, Formosa / Vectorial and congenital transmission of Trypanosoma cruzi in Las Lomitas, Formosa

La enfermedad de Chagas causada por el Trypanosoma cruzi es una causa importante de morbimortalidad en Latino América. El objetivo de este estudio fue describir las tasas de infestación en las viviendas de cuatro comunidades aborígenes de Las Lomitas (Región del Gran Chaco), Formosa, Argentina; la tasa de infección en la población infantil residente en las mismas, en donantes de sangre y en mujeres embarazadas que asistieron al Hospital de Las Lomitas y la tasa de infección congénita de niños nacidos de mujeres infectadas durante el período de estudio. La tasa de infestación en 172 viviendas evaluadas en 2006 alcanzó el 32%. La prevalencia de infección en 445 personas fue de 17.5% y en menores de 5 años de edad fue 8.6%. La tasa de infección en donantes de sangre alcanzó a 18.6% y en mujeres embarazadas fue 29.1%. La tasa de infección considerada congénita en 47 niños nacidos de mujeres infectadas residentes en viviendas bajo vigilancia fue de 17.0%. El estudio mostró, al momento de su inicio, índices compatibles con transmisión vectorial activa. Después del control vectorial con insecticidas, la tasa de infestación se redujo a 3.3%. El sistema de salud local incorporó procedimientos de prevención primaria y secundaria para evitar nuevos casos e instaurar el tratamiento de la población infectada.

Chagas disease, caused by Trypanosoma cruzi, is a major cause of morbidity and mortality in Latin America. The objective of this study was to describe the rate of infestation in four aboriginal communities in Las Lomitas (Great Chaco Region), Formosa, Argentina; the rate of infection in children residing in these communities, in blood donors and in pregnant women who received care at the Hospital Las Lomitas, as well as the rate of congenital infection in children born to women infected during the study period. The rate of infestation of 172 households evaluated in 2006 reached 32%. Prevalence of infection among 445 people was 17.5% and in children under 5 years old it was 8.6%. The rate of infection reached 18.6% in blood donors and 29.1% in pregnant women. The rate of infection among 47 children born to infected women, and living in residences under vectorial surveillance was 17.0%. These infections were considered as congenital. This study showed indexes compatible with active vectorial transmission at the beginning. After vectorial control with insecticides the infestation rate has been reduced to 3.3%. The local health system has introduced high impact procedures of primary and secondary prevention in order to prevent new cases and to treat infected people.

[Vectorial and congenital transmission of Trypanosoma cruzi in Las Lomitas, Formosa]. / Transmision vectorial y congenita del Trypanosoma cruzi en Las Lomitas, Formosa.

Chagas disease, caused by Trypanosoma cruzi, is a major cause of morbidity and mortality in Latin America. The objective of this study was to describe the rate of infestation in four aboriginal communities in Las Lomitas (Great Chaco Region), Formosa, Argentina; the rate of infection in children residing in these communities, in blood donors and in pregnant women who received care at the Hospital Las Lomitas, as well as the rate of congenital infection in children born to women infected during the study period. The rate of infestation of 172 households evaluated in 2006 reached 32%. Prevalence of infection among 445 people was 17.5% and in children under 5 years old it was 8.6%. The rate of infection reached 18.6% in blood donors and 29.1% in pregnant women. The rate of infection among 47 children born to infected women, and living in residences under vectorial surveillance was 17.0%. These infections were considered as congenital. This study showed indexes compatible with active vectorial transmission at the beginning. After vectorial control with insecticides the infestation rate has been reduced to 3.3%. The local health system has introduced high impact procedures of primary and secondary prevention in order to prevent new cases and to treat infected people.