2024
Low potential of fish as a source of infection with Angiostrongylus cantonensis
ANETTOVÁ, Lucia; Jana KAČMAŘÍKOVÁ; Anna ŠIPKOVÁ; Vivienne VELIČ; Lia CAVALLO et al.Základní údaje
Originální název
Low potential of fish as a source of infection with Angiostrongylus cantonensis
Autoři
ANETTOVÁ, Lucia; Jana KAČMAŘÍKOVÁ; Anna ŠIPKOVÁ; Vivienne VELIČ; Lia CAVALLO; Iva DYKOVÁ; Elena IZQUIERDO-RODRIGUEZ; Eric R MORGAN a David MODRÝ
Vydání
Food Quality and Safety, Oxford University Press, 2024, 2399-1399
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10613 Zoology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.400
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/24:00137227
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Angiostrongylus cantonensis; rat lungworm; life cycle; fish; food-borne pathogen
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 1. 2025 07:53, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Objectives: Fish are hypothesized to act as paratenic hosts for the zoonotic nematode Angiostrongylus cantonensis, which causes human eosinophilic meningitis.There is a lack of data confirming the relevance of fish in A. cantonensis life cycle and their contribution to human infection. Materials and Methods: We conducted a series of experiments to investigate the survival and infectivity of A. cantonensis larvae in Clarias gariepinus (catfish; n =30) and Oreochromis niloticus (tilapia; n =24). Each fish was inoculated with 10 000 third-stage larvae (L3). Larval survival was assessed through artificial digestion of fish tissues 1 week, 2 weeks, and 3 weeks post-infection. To investigate the early stages of infection, four catfish were inoculated with 10 000 L3 each and sacrificed 3 d post-infection. Quantitative polymerase chain reaction (qPCR) analysis and histopathological examination were performed to evaluate larval distribution and tissue reactions. Two infected catfish, sacrificed 1 week post-infection, were used to feed Wistar rats. Results: After 45 d, the rats did not shed first-stage larvae (L1), indicating the absence of infection. One week post-infection, dead larvae were present in the digested tissues of both fish species, and the same was observed 2 weeks and 3 weeks after exposure. qPCR analysis revealed that the intestine was the most heavily infected organ. Histopathological examination identified dead larvae within granulomas in both the testines and liver. Early-stage infection experiment showed that fish sacrificed 3 d post-inoculation contained viable L3, which was infective Wistar rats. Conclusions: While A. cantonensis L3 can survive and remain infective in fish for a short period, they typically die within first few days post infection. This suggests that fish may not be significant long-term paratenic hosts for A. cantonensis but may play a temporary role in its transmission to mammals (including humans) and birds. These results are consistent with previous studies on freshwater shrimps and highlight the importance of understanding aquatic host interactions in the epidemiology of this zoonotic foodborne pathogen.
Návaznosti
| GA22-26136S, projekt VaV |
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| MUNI/A/1488/2021, interní kód MU |
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