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No change in size ,  16:03, 5 June 2011
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Ducks are the only species naturally affected.  
 
Ducks are the only species naturally affected.  
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DHV-I occurs only in '''young ducklings''', usually '''<6weeks''' of age and spreads rapidly within a flock. It is the '''most virulent''' of the three.
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DHV-I occurs only in '''young ducklings''', usually '''<6 weeks''' of age and spreads rapidly within a flock. It is the '''most virulent''' of the three.
    
DHV-II is only reported in outdoor ducks on open fields.  
 
DHV-II is only reported in outdoor ducks on open fields.  
   −
Duck Hepatitis is not considered zoonotic.  
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Duck Hepatitis is not considered zoonotic.
    
==Distribution==
 
==Distribution==
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