Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 2063 | 2063 | 301 |
Full Text Views | 7 | 7 | 2 |
PDF Downloads | 7 | 7 | 2 |
The prevalence and characteristics of chronic Chagas disease (CCD) in the Amazon Region remain underexplored. This study aimed to describe the challenges encountered during a serological survey and follow-up of CCD, while also highlighting potential risk factors in the Amazon Region. The serological survey involved residents of periurban and rural areas of Manaus in the Brazilian Amazon. All participants were invited to complete a clinical, epidemiological, and demographic questionnaire and provide a blood sample for anti-Trypanosoma cruzi (T. cruzi) IgG tests. A total of 1,845 participants were included, of whom 43 were identified as having presumed CCD, based on having at least two positive serological tests. Only 35 underwent complementary tests, and five had cardiac alterations not consistent with CCD. The main risk factors associated with CCD were age ≥20 years, living in periurban areas, reporting the presence of the insect vector inside the household, entering the forest, consumption of bushmeat, and having undergone blood transfusion. In the Amazon, the population is exposed to the sylvatic T. cruzi life cycle and is unaware of the associated risk factors. The divergent serology results raise doubts about the reliability of the commercial serological tests used for CCD screening in the region. Surveillance for CCD is important in the Amazon.
Financial support: This work received funding from the
Disclosures: The protocol and informed consent form were submitted to and approved by the Human Research Ethics Committee of the FMT-HVD (CAAE: 0,022.0.114.000-09).
Authors’ contributions: Conceptualization, J. A. d. O. Guerra and M. d. G. V. B. Guerra; data curation, S. Smith-Doria, K. do Nascimento Couceiro, J. M. B. B. Ferreira, and M. d. G. V. B. Guerra; formal analysis, S. Smith-Doria, Laise Kelma Costa Magalhães, V. Irungu Mwangi, L. I. A. R. Câmara Coelho, and A. Gomes-Silva; funding acquisition, J. A. d. O. Guerra and M. d. G. V. B. Guerra; investigation, S. Smith-Doria, A. R. J. Brandão, E. d. S. Moura, E. I. Guevara Moctezuma, M. R. Hossanah da Silva e Silva, A. Gomes-Silva, J. A. d. O. Guerra, and M. d. G. V. B. Guerra; methodology, Laise Kelma Costa Magalhães, Laylah Kelre Costa Magalhães, S. R. Prestes, L. I. A. R. Câmara Coelho, A. Gomes-Silva, and J. M. B. B. Ferreira; project administration, J. A. d. O. Guerra and M. d. G. V. B. Guerra; resources, J. M. B. B. Ferreira, J. A. d. O. Guerra, and M. d. G. V. B. Guerra; software, S. Smith-Doria, E. d. S. Moura, E. I. Guevara Moctezuma, Y. Padrón-Antonio, and V. Irungu Mwangi; supervision, L. I. A. R. Câmara Coelho, A. Gomes-Silva, H. Silveira, J. M. B. B. Ferreira, J. A. d. O. Guerra, and M. d. G. V. B. Guerra; validation, S. Smith-Doria, Laise Kelma Costa Magalhães, E. d. S. Moura, M. R. Hossanah da Silva e Silva, K. do Nascimento Couceiro, and H. Silveira; visualization, S. Smith-Doria, Y. Padrón-Antonio, and A. Gomes-Silva; writing—original draft, S. Smith-Doria, Laise Kelma Costa Magalhães, J. A. d. O. Guerra, and M. d. G. V. B. Guerra; writing—review and editing, V. Irungu Mwangi, J. V. Ortiz, A. Gomes-Silva, and M. d. G. V. B. Guerra. All authors have read and agreed to the published version of the manuscript.
Data availability: The data presented in this study are available on request from the corresponding author due to the protecting patient privacy.
Current contact information: Susan Smith-Doria, Laise Kelma Costa Magalhães, Laylah Kelre Costa Magalhães, Suzane Ribeiro Prestes, Alba Regina Jorge Brandão, Emily de Sousa Moura, Elsa Isela Guevara Moctezuma, Monica Regina Hosanahh da Silva e Silva, Katia do Nascimento Couceiro, Victor Irungu Mwangi, Jessica Vanina Ortiz, João Marcos Benfica Barbosa Ferreira, and Jorge Augusto de Oliveira Guerra, Programa de Pós-graduação em Medicina Tropical, Universidade do Estado do Amazonas, Fundação de Medicina Tropical - Doutor Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil, E-mails: susan.qbp@gmail.com, laisekelman@hotmail.com, kelre@hotmail.com, su_prestes@hotmail.com, albarjbrandao@gmail.com, emilysousamoura@gmail.com, elsai.guevaram@gmail.com, monicahosannah@gmail.com, kcouceiro@cardiol.br, mwangiv@gmail.com, ortiz.jvm@gmail.com, jmbemfica@hotmail.com, and jguerra291@gmail.com. Yuliana Padrón-Antonio, Programa de Pós-graduação em biotecnologia e Recursos Naturais, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, Brazil, E-mail: yuliana.padron@hotmail.com. Leíla Ines Aguiar Raposo Câmara Coelho, Universidade Federal do Amazonas (UFAM), Manaus, Brazil, E-mail: liarccoelho@yahoo.com.br. Adriano Gomes-Silva, Laboratório de Pesquisa Clínica em Micobacterioses, Instituto Nacional de Infectologia Evandro Chagas, INI-FIOCRUZ, Rio de Janeiro, Brazil, and Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, IOC-FIOCRUZ, Rio de Janeiro, Brazil, E-mail: adriano.gomes@ini.fiocruz.br. Henrique Silveira, Programa de Pós-graduação em Medicina Tropical, Universidade do Estado do Amazonas, Fundação de Medicina Tropical - Doutor Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil, and Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal, E-mail: hsilveira@ihmt.unl.pt. Maria das Graças Vale Barbosa Guerra, Programa de Pós-graduação em Medicina Tropical, Universidade do Estado do Amazonas, Fundação de Medicina Tropical - Doutor Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil, Programa de Pós-graduação em biotecnologia e Recursos Naturais, Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, Brazil, and Fundação Hospitalar Alfredo da Matta, Amazonas, Brazil, E-mail: mgvale@uea.edu.br.
Past two years | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 2063 | 2063 | 301 |
Full Text Views | 7 | 7 | 2 |
PDF Downloads | 7 | 7 | 2 |