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'''Scientific Classification'''
'''Scientific Classification'''
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|-
| Species
| Species
| '''H. Contortus'''
| '''H. Contortus/ H. placei, H. Longistipes, H. similis'''
|}
|}
===Haemonchus contortus===
{| cellpadding="10" cellspacing="0" border="1"
| Also known as:
| '''Barber's pole worm
|-
| The most important veterinary species
|'''''Contortus'''''
|-
|}
===Introduction===
Haemonchus contortus is a nematode parasite from the family '''Trichostrongyloidea.''' It is found worldwide, and is an extremely important parasite of sheep and goats, particularly in tropical/ subtropical regions.
Within the UK, it is found most commonly in the South, where the climate tends to be a little warmer and drier. Some have shown complete resistance to current anthelemintics which is posing a real problem, making sheep and goat farming extremely difficult in some areas of the country.