Mycobacteriosis - Fish Flashcards

Question	Answer		Article
What type of fish species are affected by mycobacteria?	Freshwater Saltwater Aquarium fish		Link to Article
Apart from a wide range of different fish species, what other animals can it affect?	prawns (crustaceans and molluscs are vectors) sea horses humans		Link to Article
What are the common clinical signs in fish?	haemorrhagic lesions, erosion and scale loss on skin and fins, organomegaly lordosis cachexia exophthalmia loss of pigmentation, and pale and cystic gills. Behavioural signs include: cessation of feeding, lethargy, swimming near the surface		Link to Article
Which species of fish mycobacteria cause skin disease in humans?	Necrotising infections in humans are caused by: M. marinum M. fortuitum		Link to Article
What methods help to diagnose mycobacterial infections?	PCR DNA probes- in situ hybridisation Antibody-based methods		Link to Article
What pathology is associated with sub acute form of Mycobacteriosis in fish?	large caseous necrotic areas with surrounding diffuse reticuloendothelial cells and macrophages.		Link to Article
What pathology is associated with the chronic proliferative form of Mycobacteriosis in fish?	Soft granulomas - with four distinguishable layers: central caseous necrosis(with or without nuclear debris) spindle-shaped epithelioid cells eosinophilic, flattened, epithelioid cells fine fibrous connective tissue forming a thin capsule Hard granulomas - composed of epithelioid cells encapsulated by fibrous connective tissue with or without calcification.		Link to Article
How can Mycobacteriosis in fish be treated?	Tetracycline Kanamycin sulphate		Link to Article