Assessment over time of the infectivity of gill-derived and seawater dispersed Neoparamoeba permaquidensis (Page, 1987)

A laboratory infection trial tested if Neoparamoeba pemaquidensis, the protozoan responsible for AGD, remained infectious for up to 14 days when out of contact with host tissues. In the infection trial, 14 Atlantic salmon (Salmo salar) were exposed to gill-derived paramoebae, which had been out of c...

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Bibliographic Details
Main Authors: Douglas-Helders, GM, Handlinger, JH, Carson, J, Nowak, BF
Format: Text
Language:English
Published: European Association of Fish Pathologists 2003
Subjects:
Agricultural and Veterinary Sciences
Fisheries Sciences
Fish Pests and Diseases
Atlantic salmon
Salmo salar
Online Access:http://ecite.utas.edu.au/26406
Description
Summary:A laboratory infection trial tested if Neoparamoeba pemaquidensis, the protozoan responsible for AGD, remained infectious for up to 14 days when out of contact with host tissues. In the infection trial, 14 Atlantic salmon (Salmo salar) were exposed to gill-derived paramoebae, which had been out of contact with hosts for up to 14 days. At the conclusion of the trial fish tested immunodot blot positive and were positive for histology. This implies that infection occurs from water to fish and the zone of infection around salmon farms may be very extensive.

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