Duck hepatitis virus

Duck hepatitis is caused by the enteroviruses DHV-1 and DHV-3. It is a fatal disease of ducklings causing opisthotonus and hepatitis. DHV-1 is found worldwide and causes disease in young ducklings, usually <6 weeks of age and spreads rapidly within a flock. It is the most virulent of the DHV species. DHV-3 has only been reported in the USA.