Changes

The adult liver fluke, ''[[Fasciola hepatica]]'',  lives in the bile ducts of a wide range of animals, including sheep, cattle, rabbits and, less often, horses. It can infect humans causing a painful abdominal disease. The intermediate host in the UK is a mud  snail, ''Lymnaea truncatula''. It causes significant economic losses in  western parts of the British Isles due to deaths, clinical and  subclinical cattle disease confined mostly to the younger stock.  Fasciolosis is a seasonal disease with more serious outbreaks occurring  in some years than in others. A similar but slightly larger species,  ''F. gigantica'', occurs in wetter tropical regions.

Fasciolosis is the disease caused by the liver fluke ''[[Fasciola hepatica]]''. The adult fluke primarily parasitises the bile ducts of ruminants, but may occasionally be found in horses. ''Lymnaea truncatula'', a mud snail, acts as the intermediate host for ''[[Fasciola hepatica]]'', and transmission of disease is dependent on the presence of appropriate snail habitats.  

 

 

  The intermediate host in the UK is a mud  snail, ''Lymnaea truncatula''. It causes significant economic losses in  western parts of the British Isles due to deaths, clinical and  subclinical cattle disease confined mostly to the younger stock.  Fasciolosis is a seasonal disease with more serious outbreaks occurring  in some years than in others. A similar but slightly larger species,  ''F. gigantica'', occurs in wetter tropical regions.

**Therefore,  establishment rate is

**Therefore,  establishment rate is

  '''sheep>cattle>pig'''

  '''sheep>cattle>pig'''

==Signalment==

==Signalment==

==Diagnosis==

==Diagnosis==