''Cooperia spp.'' are largely considered mild pathogens however there are a few species that are of greater veterinary importance, namely; ''C. punctata'' and ''C. pectinata''. These species are pariste of cattle and small ruminants and most species of this genus prefer warmer climates.
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==Identification==
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''Cooperia'' worms have a distinctive red colouration and a coiled appearance. The adults are between 5-8mm in length and males can be recognised by the presence of a dipropotionately large bursa at the anterior end.