An Indirect ELISA for Detection of Encephalitozoon cuniculi Infection in Farmed Blue Foxes (Alopex lagopus)

Infection with the intracellular microsporidium Encephalitozoon cuniculi can cause serious disease, encephalitozoonosis, in the blue fox (Alopex lagopus) . The disease diagnosis is based on clinical signs and pathological findings, and detection of E. cuniculi or circulating antibodies directed agai...

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Bibliographic Details
Published in:Acta Veterinaria Scandinavica
Main Author: Åkerstedt J
Format: Article in Journal/Newspaper
Language:English
Published: BMC 2002
Subjects:
Online Access:https://doi.org/10.1186/1751-0147-43-211
https://doaj.org/article/7f63b0a6dc6c4ed6b37609ca2bfc152e
Description
Summary:Infection with the intracellular microsporidium Encephalitozoon cuniculi can cause serious disease, encephalitozoonosis, in the blue fox (Alopex lagopus) . The disease diagnosis is based on clinical signs and pathological findings, and detection of E. cuniculi or circulating antibodies directed against the parasite. Indirect immunofluorescence (IFAT) and carbon immunoassay (CIA) are the most commonly used serological methods for diagnosis in this species. In the present study, an indirect ELISA (enzyme linked immunosorbent assay) was established and evaluated against IFAT by testing of 205 field samples from blue foxes. There was high agreement between the results of the ELISA and CIA (κ = 0.99), and the ELISA and IFAT (κ = 0.958). There was no significant statistical difference between the tests (p > 0.05). It was concluded that the ELISA could be used to identify seropositive farmed blue foxes. The advantage of the ELISA lies in the potential of screening large numbers of animals with the goal of eradicating E. cuniculi infection in the farms.