Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico

Chagas disease is a neglected disease caused by the parasite <i>Trypanosoma cruzi</i>, a public health problem in both endemic and non-endemic countries. In Mexico, the southern region is considered endemic, and cases are frequently reported; however, in the northwestern region, only a f...

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Main Authors: Idalia Paredes-Sotelo, Mónica Reséndiz-Sandoval, Adriana Garibay-Escobar, Edgar Alfonso Paredes-González, Aracely Angulo-Molina, Angel Ramos-Ligonio, Eric Dumonteil, Claudia Herrera, Olivia Valenzuela
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Tropical Medicine and Infectious Disease
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Online Access:https://www.mdpi.com/2414-6366/10/4/104
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author Idalia Paredes-Sotelo
Mónica Reséndiz-Sandoval
Adriana Garibay-Escobar
Edgar Alfonso Paredes-González
Aracely Angulo-Molina
Angel Ramos-Ligonio
Eric Dumonteil
Claudia Herrera
Olivia Valenzuela
author_facet Idalia Paredes-Sotelo
Mónica Reséndiz-Sandoval
Adriana Garibay-Escobar
Edgar Alfonso Paredes-González
Aracely Angulo-Molina
Angel Ramos-Ligonio
Eric Dumonteil
Claudia Herrera
Olivia Valenzuela
author_sort Idalia Paredes-Sotelo
collection DOAJ
description Chagas disease is a neglected disease caused by the parasite <i>Trypanosoma cruzi</i>, a public health problem in both endemic and non-endemic countries. In Mexico, the southern region is considered endemic, and cases are frequently reported; however, in the northwestern region, only a few cases are confirmed annually. This study describes, for the first time, the Discrete Typing Unit (DTU) of <i>Trypanosoma cruzi</i> in a volunteer blood donor rejected for being reactive in the northwestern region of Mexico. Seroreactivity was confirmed using “in-house” ELISAs which employed three different antigens: total extract from <i>Trypanosoma cruzi</i> isolated from a vector (<i>Triatoma rubida</i>) from Sonora (strain T1), strain H1 and CL-Brener. The molecular characterization of <i>Trypanosoma cruzi</i> was conducted by amplifying satellite DNA by qPCR and posterior sequencing of the mini-exon gene, using Next Generation Sequencing (NGS) to enhance the accuracy of genetic characterization. The results show that the reactive status of this blood donor was confirmed using our in-house ELISAs, and the presence of <i>Trypanosoma cruzi</i> by detecting TcI DTU confirmed the infection status.
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spelling doaj-art-1ea13c4fecac45949a85c67f80522f842025-08-20T02:25:12ZengMDPI AGTropical Medicine and Infectious Disease2414-63662025-04-0110410410.3390/tropicalmed10040104Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, MexicoIdalia Paredes-Sotelo0Mónica Reséndiz-Sandoval1Adriana Garibay-Escobar2Edgar Alfonso Paredes-González3Aracely Angulo-Molina4Angel Ramos-Ligonio5Eric Dumonteil6Claudia Herrera7Olivia Valenzuela8Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, MexicoDepartamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, MexicoDepartamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, MexicoDepartamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Caborca C.P. 83600, Sonora, MexicoDepartamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, MexicoLADISER, Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba C.P. 94340, Veracruz, MexicoDepartment of Tropical Medicine and Infectious Disease, Celia Scott Weatherhead School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USADepartment of Tropical Medicine and Infectious Disease, Celia Scott Weatherhead School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USADepartamento de Ciencias Químico Biológicas, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, MexicoChagas disease is a neglected disease caused by the parasite <i>Trypanosoma cruzi</i>, a public health problem in both endemic and non-endemic countries. In Mexico, the southern region is considered endemic, and cases are frequently reported; however, in the northwestern region, only a few cases are confirmed annually. This study describes, for the first time, the Discrete Typing Unit (DTU) of <i>Trypanosoma cruzi</i> in a volunteer blood donor rejected for being reactive in the northwestern region of Mexico. Seroreactivity was confirmed using “in-house” ELISAs which employed three different antigens: total extract from <i>Trypanosoma cruzi</i> isolated from a vector (<i>Triatoma rubida</i>) from Sonora (strain T1), strain H1 and CL-Brener. The molecular characterization of <i>Trypanosoma cruzi</i> was conducted by amplifying satellite DNA by qPCR and posterior sequencing of the mini-exon gene, using Next Generation Sequencing (NGS) to enhance the accuracy of genetic characterization. The results show that the reactive status of this blood donor was confirmed using our in-house ELISAs, and the presence of <i>Trypanosoma cruzi</i> by detecting TcI DTU confirmed the infection status.https://www.mdpi.com/2414-6366/10/4/104<i>Trypanosoma cruzi</i>Chagas diseaseblood bankserologymolecular diagnosticsdiscrete typing unit
spellingShingle Idalia Paredes-Sotelo
Mónica Reséndiz-Sandoval
Adriana Garibay-Escobar
Edgar Alfonso Paredes-González
Aracely Angulo-Molina
Angel Ramos-Ligonio
Eric Dumonteil
Claudia Herrera
Olivia Valenzuela
Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
Tropical Medicine and Infectious Disease
<i>Trypanosoma cruzi</i>
Chagas disease
blood bank
serology
molecular diagnostics
discrete typing unit
title Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
title_full Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
title_fullStr Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
title_full_unstemmed Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
title_short Detection of <i>Trypanosoma cruzi</i> in a Reactive Blood Bank Sample in Sonora, Mexico
title_sort detection of i trypanosoma cruzi i in a reactive blood bank sample in sonora mexico
topic <i>Trypanosoma cruzi</i>
Chagas disease
blood bank
serology
molecular diagnostics
discrete typing unit
url https://www.mdpi.com/2414-6366/10/4/104
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