Raising the suspicion of a non-autochthonous infection: identification of Leishmania guyanensis from Costa Rica exhibits a Leishmaniavirus related to Brazilian north-east and French Guiana viral genotypes



Título del documento: Raising the suspicion of a non-autochthonous infection: identification of Leishmania guyanensis from Costa Rica exhibits a Leishmaniavirus related to Brazilian north-east and French Guiana viral genotypes
Revista: Memorias do Instituto Oswaldo Cruz
Base de datos: PERIÓDICA
Número de sistema: 000452374
ISSN: 0074-0276
Autores: 1
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Instituciones: 1Instituto Costarricense de Investigación y Enseñanza en Nutrición y Salud, Centro Nacional de Referencia de Parasitología, Cartago. Costa Rica
2Caja Costarricense del Seguro Social, Area de Salud Santa Rosa de Pocosol, Alajuela. Costa Rica
3Caja Costarricense del Seguro Social, Hospital Escalante Pradilla, San José. Costa Rica
4Caja Costarricense del Seguro Social, Hospital William Allen, Cartago. Costa Rica
5Caja Costarricense del Seguro Social, Area de Salud Florencia, Alajuela. Costa Rica
6Caja Costarricense del Seguro Social, Hospital Ciudad Neily, Puntarenas. Costa Rica
7Caja Costarricense del Seguro Social, Hospital de Guápiles, Limón. Costa Rica
8Caja Costarricense del Seguro Social, Area de Salud Matina, Limón. Costa Rica
9Caja Costarricense del Seguro Social, Area de Salud Talamanca, Limón. Costa Rica
10Fundacao Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro. Brasil
Año:
Volumen: 117
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Costa Rica has a history of neglecting prevention, control and research of leishmaniasis, including limited understanding on Leishmania species causing human disease across the country and a complete lack of knowledge on the Leishmania RNA virus, described as a factor linked to the worsening and metastasis of leishmanial lesions. OBJECTIVES The aim of this work was to describe a case of cutaneous leishmaniasis by Leishmania (Viannia) guyanensis, bearing infection with Leishmaniavirus 1 (LRV1) in Costa Rica, raising the suspicion of imported parasites in the region. METHODS The Leishmania strain was previously identified by routine hsp70 polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in Costa Rica and subsequently characterised by isoenzyme electrophoresis and Sanger sequencing in Brazil. Screening for LRV1 was conducted with a dual RT-PCR approach and sequencing of the fragment obtained. FINDINGS Since 2016 Costa Rica performs Leishmania isolation and typing as part of its epidemiological surveillance activities. Amongst 113 strains typed until 2019, only one was characterised as a L. (V.) guyanensis, corresponding to the first confirmed report of this species in the country. Interestingly, the same strain tested positive for LRV1. Sequencing of the viral orf1 and 2, clustered this sample with other LRV1 genotypes of South American origin, from the Northeast of Brazil and French Guiana. MAIN CONCLUSION The unique characteristics of this finding raised the suspicion that it was not an autochthonous strain. Notwithstanding its presumed origin, this report points to the occurrence of said endosymbiont in Central American Leishmania strains. The possibility of its local dispersion represents one more challenge faced by regional health authorities in preventing and controlling leishmaniasis
Disciplinas: Medicina
Palabras clave: Virus,
Epidemiología,
Leishmaniasis,
Leishmaniavirus,
Nuevos registros,
Leishmania guyanensis,
Costa Rica
Keyword: Virus,
Epidemiology,
Leishmaniavirus,
Leishmaniasis,
New records,
Leishmania guyanensis,
Costa Rica
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