2013
Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden
NOVOBILSKY, Adam, Martin KAŠNÝ, Luboš BERAN, Daniel RONDELAUD, Johan HOGLUND et. al.Základní údaje
Originální název
Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden
Autoři
NOVOBILSKY, Adam (203 Česká republika, garant), Martin KAŠNÝ (203 Česká republika, domácí), Luboš BERAN (203 Česká republika), Daniel RONDELAUD (250 Francie) a Johan HOGLUND (752 Švédsko)
Vydání
PARASITES & VECTORS, LONDON, BIOMED CENTRAL LTD, 2013, 1756-3305
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
40301 Veterinary science
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.251
Kód RIV
RIV/00216224:14310/13:00066959
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000323786900001
Klíčová slova anglicky
Fasciola hepatica; Fascioloides; Galba truncatula; Intermediate host; ITS-2; Lymnaea fuscus; Lymnaea palustris; Lymnaeidae; Metacercariae; Shell size
Změněno: 8. 3. 2018 15:07, Mgr. Lucie Jarošová, DiS.
Anotace
V originále
Background: Lymnaea palustris and L. fuscus are members of the European stagnicolines (Gastropoda: Lymnaeidae). The role of stagnicolines in transmission of Fasciola hepatica has been often proposed. To assess the possible relationship between these two stagnicolines and F. hepatica in Sweden, field monitoring in parallel with experimental infections of L. palustris and L. fuscus were conducted. Methods: Stagnicoline snails were collected and identified on pastures grazed by either sheep or cattle on four farms suffering from fasciolosis in Sweden during 2011-2012. Field-collected L. palustris and L. fuscus were examined for F. hepatica DNA by PCR. In the laboratory, different age groups of L. palustris, L. fuscus and G. truncatula were each exposed to two F. hepatica miracidia and main infection characteristics were obtained. Results: One field-collected L. palustris (out of n = 668) contained F. hepatica as determined by PCR. On the other hand, stagnicolines artificially exposed to F. hepatica miracidia resulted in successful infection with fully differentiated cercariae, but only in juvenile snails (size, 1-2 mm at exposure) and with a prevalence of 51% and 13% in L. palustris and L. fuscus, respectively. In contrast, 90% of juvenile (size, 1-2 mm) and 92% of preadult G. truncatula (size, >= 2-4 mm), respectively, were successfully infected. Delayed, reduced and/or no spontaneous cercarial shedding was observed in the two stagnicolines when compared to G. truncatula. However, at snail dissection most cercariae from L. fuscus and L. palustris were able to encyst similarly to those from G. truncatula. Conclusion: Both L. fuscus and L. palustris can sustain larval development of F. hepatica but with an apparent level of age resistance. The finding of a single F. hepatica positive specimen of L. palustris, together with infection characteristics from the experimental infection, suggest that L. palustris is a more suitable snail vector of F. hepatica than L. fuscus. The reduced growth observed in both stagnicolines was contrary to the 'parasitic gigantism' theory. Overall, it seems that the epidemiological role of L. palustris in transmission of F. hepatica in Sweden is likely to be much lower than for G. truncatula.
Návaznosti
| GAP506/12/1258, projekt VaV |
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| MUNI/A/0937/2012, interní kód MU |
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