Epidemiología de la enfermedad de Chagas en comunidades mocovíes y criollas en el sur del Chaco Argentino

Colussi, Carlina; Stafuza, Mariana; Denner, Susana; Nepote, Marcelo; Mendicino, Diego

doi:10.21149/spm.v58i1.8151

Cited by 3 publications

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“…The survey on risk factors consisted of 23 questions, in a nonlogical sequence to avoid inducing the answers of the study participants. The questions were elaborated on the basis of previous work [ 11 , 12 , 13 ]. The approximate duration was 30 min per survey.…”

Section: Methodsmentioning

confidence: 99%

Chagas Disease: Seroprevalence and Associated Factors in Indigenous Communities of the Southern Limit of Argentine Chaco

et al. 2023

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Chagas disease is more prevalent in socially vulnerable communities in the Gran Chaco Eco-region. The study evaluated the seroprevalence of Chagas disease and associated factors between May 2014 and September 2015, in indigenous communities of Santa Fe, Argentina, in the southern Chaco. Lysate ELISA and indirect hemagglutination tests were used to detect antibodies against Trypanosoma cruzi, and recombinant ELISA was used in the case of disagreement. Household surveys were conducted with the head of household about risk factors for the disease. Serological tests were conducted on 298 people from three indigenous communities, 127 male and 171 female. Seroprevalence was 18.5%. A total of 64 surveys were conducted; 82.8% of the heads of household were male, with a median age of 39 years, and 61.0% had not completed primary school. In 35.9% of the households, there was at least one member of the cohabiting group infected with T. cruzi. The level of education of the head of household showed a statistically significant association with Chagas disease (OR = 3.43), among all the risk factors studied. The prevalence of infection is lower than that of other indigenous communities of the Gran Chaco, probably because environmental conditions are moderating and disfavoring the establishment of the insect vector in homes, but also because of socioeconomic differences with the rest of the eco-region. Beyond this, serological controls are needed to prevent vertical transmission.

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Section: Methodsmentioning

confidence: 99%

Chagas Disease: Seroprevalence and Associated Factors in Indigenous Communities of the Southern Limit of Argentine Chaco

et al. 2023

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“…In the south of Gran Chaco, the prevalence of Chagas disease is high in rural indigenous communities in the presence of triatomines in their homes 4,5 , and has increased in urban areas due to migration from areas with active vector transmission (Chagas disease urbanization) due to unfavorable socio-sanitary conditions [6][7][8] . Due to regional efforts, the Santa Fe province was certified as free of vector transmission by the Pan American Health Organization in 2012.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of Chagas disease in urban and rural indigenous populations of the south of Gran Chaco

Colussi

Stafuza

Nepote

et al. 2022

Rev. Soc. Bras. Med. Trop.

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Background: In Latin America, Chagas disease is endemic, with a high prevalence in rural indigenous communities and an increasing prevalence in urban areas owing to migration from rural areas with active vector transmission. This study aimed to assess differences in the prevalence of Chagas disease in urban and rural moqoit communities, one of the main ethnic indigenous groups in the south of Gran Chaco.Methods: A seroprevalence study was conducted in six moqoit populations in the Santa Fe province, Argentina. The variables studied were serology results for Chagas disease, residents of urban or rural areas, age, and sex. Results:The results showed that 9.26% of the 702 volunteers evaluated and 18.32% of the 131women of childbearing potential were seropositive. According to the calculated prevalence ratio, the prevalence of Chagas disease in urban communities was6.41 (95% confidence inverval: 3.73-11.02) times higher than that in rural communities: 21.59% in urban communities vs. 3.37%in rural communities. Conclusions:The seroprevalence found in the moqoit community was higher than the estimated level for the general population of the same region, with a greater impact in urban areas than in rural areas. The urbanization of groups of people with poor socio-sanitary conditions in the second half of the 20th century could have caused this higher seroprevalence of Chagas disease.

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“…In the south of Gran Chaco, in Argentina, the prevalence of Chagas disease is high in rural indigenous communities with the presence of triatomines in their homes [3], [4] and has increased in urban areas due to migration from areas with active vector transmission (Chagas disease urbanization) [5], [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of Chagas in urban and rural indigenous populations of the south of Gran Chaco

Colussi

Stafuza²,

Nepote

et al. 2021

Preprint

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Background & objectivesIn Latin America, Chagas disease is endemic, with high prevalence in rural indigenous communities and increasing prevalence in urban areas due to migration from rural areas with active vector transmission. The objective of the work was to assess differences in the prevalence of Chagas disease in urban and rural moqoit communities of the south of Gran Chaco, Santa Fe province, Argentina.MethodsA seroprevalence study was conducted in six moqoit populations. Belonging to an urban community was considered as an exposure variable, whereas seropositivity for Chagas disease was considered as an outcome variableResultsThe results showed that 9.26% of the 702 volunteers evaluated and 3.50% of women of childbearing potential were seropositive. The prevalence of Chagas disease in urban communities was 6.41 times higher than in rural communities.Interpretation & conclusionsThe seroprevalence found in the moqoit community is higher than that estimated for the general population of the same region, with greater impact in the urban area than in the rural area. The decline of vector transmission in the rural area could be related to the conservation of ancestral practices and the expansion of the agricultural model.

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Epidemiología de la enfermedad de Chagas en comunidades mocovíes y criollas en el sur del Chaco Argentino

Cited by 3 publications

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Chagas Disease: Seroprevalence and Associated Factors in Indigenous Communities of the Southern Limit of Argentine Chaco

Chagas Disease: Seroprevalence and Associated Factors in Indigenous Communities of the Southern Limit of Argentine Chaco

Seroprevalence of Chagas disease in urban and rural indigenous populations of the south of Gran Chaco

Seroprevalence of Chagas in urban and rural indigenous populations of the south of Gran Chaco

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