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Evidence for wild crocodiles as a risk for human Leptospirosis, Mexico

Pérez Flores, Jonathan Sechaly [autor] | Charruau, Pierre Alexandre Rémy Robert [autor] | Cedeño-Vázquez, J.R [autor] | Atilano, Daniel [autor].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Crocodylus acutus | Crocodylus moreletii | Leptospirosis | ZoonosisTema(s) en inglés: Cocodrilos acutus | Cocodrilos moreletii | Leptospirosis | ZoonosesDescriptor(es) geográficos: Área de Protección de Flora y Fauna La Porción Norte y la Franja Costera Oriental, Terrestres y Marinas de la Isla de Cozumel (Quintana Roo, México) | Reserva de la Biosfera Banco Chinchorro (Quintana Roo, México) | Río Hondo | Laguna Chichancanab (Quintana Roo, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: EcoHealth. Volumen 14, número 1 (March 2017), páginas 58-68. --ISSN: 1612-9210Número de sistema: 58308Resumen:
Inglés

Sentinel species such as crocodilians are used to monitor the health of ecosystems. However, few studies have documented the presence of zoonotic diseases in wild populations of these reptiles. Herein we analyzed 48 serum samples from Crocodylus acutus (n = 34) and C. moreletii (n = 14) from different sites in the state of Quintana Roo (Mexico) to detect antibodies to Leptospira interrogans by means of a microscopic agglutination test (MAT). Crocodylus acutus and C. moreletii tested positive to 11 and 9 serovars, respectively, with Grippotyphosa being the serovar with the highest prevalence in Cozumel island (100%), Banco Chinchorro Biosphere Reserve (70.6%), and Río Hondo (100%), while in Chichankanab Lake, it was Bratislava (75%). Titers ranged from 1:50 to 1:3200, and the most frequent was 1:50 in all study sites. Leptospira is present in fresh and saltwater individuals due to the resistance of the bacterium in both environments. Cases of infected people involved with crocodile handling and egg collection suggest that these reptiles could play an important role in the transmission of leptospirosis. Preventive medicine programs should consider the monitoring of reptiles, and testing the soil and water, to prevent outbreaks of leptospirosis in facilities containing crocodiles.

Recurso en línea: https://doi.org/10.1007/s10393-016-1196-7
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Disponible para usuarios de ECOSUR con su clave de acceso

Sentinel species such as crocodilians are used to monitor the health of ecosystems. However, few studies have documented the presence of zoonotic diseases in wild populations of these reptiles. Herein we analyzed 48 serum samples from Crocodylus acutus (n = 34) and C. moreletii (n = 14) from different sites in the state of Quintana Roo (Mexico) to detect antibodies to Leptospira interrogans by means of a microscopic agglutination test (MAT). Crocodylus acutus and C. moreletii tested positive to 11 and 9 serovars, respectively, with Grippotyphosa being the serovar with the highest prevalence in Cozumel island (100%), Banco Chinchorro Biosphere Reserve (70.6%), and Río Hondo (100%), while in Chichankanab Lake, it was Bratislava (75%). Titers ranged from 1:50 to 1:3200, and the most frequent was 1:50 in all study sites. Leptospira is present in fresh and saltwater individuals due to the resistance of the bacterium in both environments. Cases of infected people involved with crocodile handling and egg collection suggest that these reptiles could play an important role in the transmission of leptospirosis. Preventive medicine programs should consider the monitoring of reptiles, and testing the soil and water, to prevent outbreaks of leptospirosis in facilities containing crocodiles. eng

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