Detection of anti-Leptospira spp. agglutinins in captive South American river turtles, Podocnemis expansa

ABSTRACT Leptospirosis is a zoonosis transmitted by contact with infected urine or water contaminated with the agent. Searches for Leptospira spp. in reptiles are scarce although most species have contact with aquatic environments. We evaluated the presence of anti-Leptospira spp. antibodies in Podo...

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Veröffentlicht in:Acta amazonica 2020-06, Vol.50 (2), p.115-118
Hauptverfasser: SOUZA ROCHA, Katarine de, MONTEIRO, Louysse Helene, SANTOS MIRANDA, Juliana Maria, MONTEIRO BAIA, Ianny Watuzy, MARQUES MONTEIRO, Thamillys Rayssa, SCHUPP DE SENA MESQUITA, Gleiciane, ROCHA ALBUQUERQUE, Mirian da, THIEMY YOKOKURA, Layna, CASTANHEIRA PIMENTA, Gabriela, TEIXEIRA GOMES, Maria Érika, MARQUES BARROZO, Pedro Henrique, CARVALHO DE CASTRO, Danniel, ABENSUR VIEIRA, André Luiz, EGUCHI MESQUITA, Ellen Yasmin, GUIMARÃES DE MORAES, Carla Cristina
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Zusammenfassung:ABSTRACT Leptospirosis is a zoonosis transmitted by contact with infected urine or water contaminated with the agent. Searches for Leptospira spp. in reptiles are scarce although most species have contact with aquatic environments. We evaluated the presence of anti-Leptospira spp. antibodies in Podocnemis expansa housed at the Amazonian Zoobotanical Garden, in Belém, Pará state, Brazil. We analyzed 74 serum samples through the microscopic agglutination test using 31 live antigens from different Leptospira spp. serogroups. Thirty samples (40.5%) were positive against Leptospira spp., with titrations between 100 and 3,200 for one or more serogroups. The Hebdomadis serogroup was the most prevalent, with 26 (87%) out of the 30 positive samples, followed by Djasiman, with two (7%) and Celledoni and Bataviae with one (3%) sample each. The detection of anti-Leptospira spp. agglutinins in P. expansa suggests that the aquatic environment is a transmission route for this pathogen among chelonians. RESUMO A leptospirose é uma zoonose transmitida pelo contato com urina infectada ou água contaminada com o agente. Estudos de Leptospira spp. em répteis são escassos, apesar da maioria das espécies terem contato com ambientes aquáticos. Avaliamos a presença de anticorpos anti-Leptospira spp. em Podocnemis expansa mantidas no Jardim Zoobotânico da Amazônia, em Belém, Pará, Brasil. Analisamos 74 amostras de soro por meio do teste de aglutinação microscópica usando 31 antígenos vivos de diferentes sorogrupos de Leptospira spp. Trinta amostras (40,5%) foram reagentes contra Leptospira spp., com titulações entre 100 e 3.200 para um ou mais sorogrupos. O sorogrupo Hebdomadis foi o mais prevalente, com 26 (87%) das 30 amostras positivas, seguido por Djasiman, com duas (7%) e Celledoni e Bataviae com uma (3%) amostra cada. A detecção de aglutininas anti-Leptospira spp. em P. expansa sugere que o ambiente aquático é uma via de transmissão para esse patógeno entre quelônios.
ISSN:0044-5967
1809-4392
DOI:10.1590/1809-4392201901601