New host, geographic records, and histopathologic studies ofAngiostrongylus spp (Nematoda: Angiostrongylidae) in rodents from Argentina with updated summary of records from rodent hosts and host specificity assessment
Mem. Inst. Oswaldo Cruz
; 111(3): 181-191, Mar. 2016. tab, graf
Article
em En
| LILACS
| ID: lil-777374
Biblioteca responsável:
BR1.1
ABSTRACT
To date, 21 species of the genus Angiostrongylus (Nematoda Angiostrongylidae) have been reported around the world, 15 of which are parasites of rodents. In this study, new host, geographic records, and histopathologic studies of Angiostrongylus spp in sigmodontine rodents from Argentina, with an updated summary of records from rodent hosts and host specificity assessment, are provided. Records of Angiostrongylus costaricensis from Akodon montensis andAngiostrongylus morerai from six new hosts and geographical localities in Argentina are reported. The gross and histopathologic changes in the lungs of the host species due to angiostrongylosis are described. Published records of the genus Angiostrongylus from rodents and patterns of host specificity are presented. Individual Angiostrongylusspecies parasitise between one-19 different host species. The most frequent values of the specificity index (STD) were between 1-5.97. The elevated number of host species (n = 7) of A. morerai with a STD = 1.86 is a reflection of multiple systematic studies of parasites from sigmodontine rodents in the area of Cuenca del Plata, Argentina, showing that an increase in sampling effort can result in new findings. The combination of low host specificity and a wide geographic distribution of Angiostrongylus spp indicates a troubling epidemiological scenario although, as yet, no human cases have been reported.
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Texto completo:
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Índice:
LILACS
Assunto principal:
Doenças dos Roedores
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Sigmodontinae
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Especificidade de Hospedeiro
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Coração
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Angiostrongylus
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Pulmão
Limite:
Animals
País/Região como assunto:
America do sul
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Argentina
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
MEDICINA TROPICAL
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PARASITOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
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Project document