View source for Mycobacteriosis - Fish Flashcards

<FlashCard questions="8">
|q1= What type of fish species are affected by ''mycobacteria''?
|a1= 
*Freshwater
* Saltwater 
*Aquarium fish
|l1= Mycobacteriosis - Fish#Introduction
|q2= Apart from a wide range of different fish species, what other animals can it affect?
|a2= 
*prawns (crustaceans and molluscs  are vectors)
*sea horses
*humans
|l2= Mycobacteriosis - Fish#Signalment
|q3= What are the common clinical signs in fish?
|a3= 
*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
|l3= Mycobacteriosis - Fish #Clinical Signs
|q4= Which species of fish mycobacteria cause skin disease in humans?
|a4=
Necrotising infections in humans are caused by:
*''M. marinum ''
 *''M. fortuitum''   
|l4= Mycobacteriosis - Fish#Introduction
|q5= What methods help to diagnose ''mycobacterial'' infections?
|a5=
* PCR 
* DNA probes- in situ hybridisation
 *Antibody-based methods 
|l5= Mycobacteriosis - Fish #Diagnosis
|q6= What pathology is associated with sub acute form of Mycobacteriosis in fish?
|a6=
* large caseous necrotic areas with surrounding diffuse reticuloendothelial cells and macrophages.
|l6= Mycobacteriosis - Fish #Pathology
|q7= What pathology is associated with the chronic proliferative form of Mycobacteriosis in fish?
|a7=
* Soft granulomas  - with four distinguishable layers; a central caseous necrosis, (with or without nuclear debris), spindle-shaped epithelioid cells, eosinophilic, flattened, epithelioid cells and then a fine fibrous connective tissue encircling to form a thin capsule. 
*Hard granulomas - composed of epithelioid cells encapsulated by fibrous connective tissue with or without calcification.
|l7= Mycobacteriosis - Fish # Pathology
|q8= How can Mycobacteriosis in fish be treated?
|a8=
* Tetracycline 
* Kanamycin sulphate
|l8= Mycobacteriosis - Fish #Treatment

</FlashCard>
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