Susceptibility of Biomphalaria glabrata submitted to concomitant infection with Angiostrongylus costaricensis and Schistosoma mansoni

The easy adaptation of Angiostrongylus costaricensis, nematode responsible for abdominal angiostrongyliasis to several species of terrestrial and freshwater molluscs and the differences observed in the interactions of trematodes with their intermediate hosts have induced us to study the concomitant...

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Bibliographic Details
Published in:Brazilian journal of biology 2017-07, Vol.77 (3), p.451-458
Main Authors: Guerino, L R, Carvalho, J F, Magalhães, L A, Zanotti-Magalhães, E M
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Angiostrongylus - pathogenicity
Animals
BIOLOGY
Biomphalaria
concomitant infection
Exposure
Hygiene
Infections
Larva
Larvae
Metabolism
Mollusks
Nematoda
Parasites
Parasitology
Schistosoma mansoni - pathogenicity
Schistosomiasis mansoni - etiology
Strongylida Infections - etiology
Taxa
Terrestrial environments
Trematoda
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Summary:The easy adaptation of Angiostrongylus costaricensis, nematode responsible for abdominal angiostrongyliasis to several species of terrestrial and freshwater molluscs and the differences observed in the interactions of trematodes with their intermediate hosts have induced us to study the concomitant infection of Biomphalaria glabrata with Schistosoma mansoni and A. costaricensis. Prior exposure of B. glabrata to A. costaricensis (with an interval of 48 hours), favored the development of S. mansoni, observing higher infection rate, increased release of cercariae and increased survival of molluscs, when compared to molluscs exposed only to S. mansoni. Prior exposure of B. glabrata to A. costaricensis and then to S. mansoni also enabled the development of A. costaricensis since in the ninth week of infection, higher amount of A. costaricensis L3 larvae was recovered (12 larvae / mollusc) while for molluscs exposed only to A. costaricensis, the number of larvae recovered was lower (8 larvae / mollusc). However, pre-exposure of B. glabrata to S. mansoni (with an interval of 24 hours), and subsequently exposure to A. costaricensis proved to be very harmful to B. glabrata, causing extensive mortality of molluscs, reduced pre-patent period to release cercariae and greater recovery of L3 A. costaricensis larvae.
ISSN:1519-6984
1678-4375
1678-4375
DOI:10.1590/1519-6984.15215