The first case of congenital Chagas’ disease analyzed by AP-PCR in Colombia

Concepción Judith Puerta, Paula Ximena Pavia, Marleny Montilla, Carolina Flórez, Giomar Herrera, Juan Manuel Ospina, Fred Manrique, Rubén Santiago Nicholls, .

Keywords: Chagas disease, Trypanosoma cruzi, maternal-fetal exchange, polymerase chain reaction, Colombia, AP-PCR.

Abstract

Introduction. The main route of Chagas disease transmission is through vectors of the insect family Reduviidae. However, the parasite can also be transmitted from infected mothers to their fetus in utero. Until now, no cases of congenital Chagas disease have been reported in Colombia.
Objective. A congenital Chagas disease case occurred in Moniquirá County, Boyacá, Colombia. It was confirmed by comparing strains isolated from the mother and her baby using polymerase chain reaction (PCR) with arbitrary primers.
Materials and methods. The parasite DNA was extracted from positive blood cultures of the aflicted mother and her son. The species confirmation and group detection were performed by PCR. The strain genotypes were determined by AP-PCR with two oligonucleotides based on the genes for the b-globin (5’-CCTCACCTTCTTTCATGGAG-3’) and 16S RrNA (5’-ACGGGCAGTGTGTACAAGACC-3’), in differente reactions.
Results. The T. cruzi strains isolated from the blood cultures of the mother and her son showed the same amplification profile by the two AP-PCR tests; this corresponded with profiles of the T.cruzi I strains used as controls. However, T. cruzi II was also found in the blood culture from the newborn.
Conclusions. This is the first case of Chagas disease transmission reported in Moniquirá, demonstrating that this form of transmission occurs in Colombia. The presence of both groups of T. cruzi in the newborn sample suggests mixed infection in the mother as well, with a higher prevalence of T. cruzi I, at least in the mother’s blood culture.

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  • Concepción Judith Puerta Laboratorio de Parasitología Molecular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
  • Paula Ximena Pavia Laboratorio de Parasitología Molecular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
  • Marleny Montilla Grupo de Parasitología, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • Carolina Flórez Grupo de Parasitología, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • Giomar Herrera Grupo de Salud Pública, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
  • Juan Manuel Ospina Grupo de Salud Pública, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
  • Fred Manrique Grupo de Salud Pública, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
  • Rubén Santiago Nicholls Grupo de Parasitología, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia

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How to Cite
1.
Puerta CJ, Pavia PX, Montilla M, Flórez C, Herrera G, Ospina JM, et al. The first case of congenital Chagas’ disease analyzed by AP-PCR in Colombia. biomedica [Internet]. 2009 Dec. 1 [cited 2024 May 16];29(4):513-22. Available from: https://revistabiomedica.org/index.php/biomedica/article/view/125

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Published
2009-12-01
Section
Case presentation

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