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'''Innoculation''' from liver suspensions can be used for confirmation of all DHVs using embryonated duck eggs, chicken eggs and tissue culture.
 
'''Innoculation''' from liver suspensions can be used for confirmation of all DHVs using embryonated duck eggs, chicken eggs and tissue culture.
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'''Direct [[immunofluorescence]]''' can also confirm presence of DHV-I.
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'''Direct [[immunofluorescence]]''' can also confirm presence of DHV-1.
    
'''Virus Neutralisation (VN)''' serological tests can be used to monitor vaccination response and epidemiology.
 
'''Virus Neutralisation (VN)''' serological tests can be used to monitor vaccination response and epidemiology.
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==Control==
 
==Control==
'''Vaccination''' is only commercially available against '''DHV-I'''. Immunisation involves two or three innoculations. Live, attenuated and inactivated forms are available.
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'''Vaccination''' is only commercially available against '''DHV-1'''. Immunisation involves two or three innoculations. Live, attenuated and inactivated forms are available.
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DHV-I can be prevented by '''strict isolation''' in the first 4-5 weeks of life.  
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DHV-1 can be prevented by '''strict isolation''' in the first 4-5 weeks of life.  
    
The viruses are resistant to inactivation by heat, acid and some disinfectants. Only 5% phenol and formaldehyde are successful in inactivating the viruses.
 
The viruses are resistant to inactivation by heat, acid and some disinfectants. Only 5% phenol and formaldehyde are successful in inactivating the viruses.
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