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→Prevention
==Prognosis==
==Prognosis==
Fair in cases that are rapidly treated but poor in foals with evidence of hypovolaemia and septic shock. Surgical cases also carry a poorer prognosis than cases which are resolved medically. In a recent study, long term survival of 25 affected horses was 33%(37).
Fair in cases that are rapidly treated but poor in foals with evidence of hypovolaemia and septic shock. Surgical cases also carry a poorer prognosis than cases which are resolved medically. In a recent study, long term survival of 25 affected horses was 33%(37).
*Regular worming programme until at least 15 months of age that prevents a build-up of large ascarid burdens in the foal:
*Regular worming programme until at least 15 months of age that prevents a build-up of large ascarid burdens in the foal:
**Macrocyclic lactones (Ivermectin in Equimax or Eqvalan) 0.2mg/kg at 60 day intervals (NB: NOT the drug of choice because resistance is widespread)
**Macrocyclic lactones (Ivermectin in Equimax or Eqvalan) 0.2mg/kg at 60 day intervals (NB: NOT the drug of choice because resistance is widespread)
**Tetrahydropyrimidines (Pyrantel pamoate in Strongid) 6.6mg/kg at 56 day intervals
**Tetrahydropyrimidines (Pyrantel pamoate in Strongid) 6.6mg/kg PO at 56 day intervals
**Benzimidazoles (Fenbendazole in Panacur) 10mg/kg at 56 day intervals
**Benzimidazoles (Fenbendazole in Panacur) 10mg/kg PO at 56 day intervals
*For foals that have not been on a controlled programme or if a large burden is suspected:
*For foals that have not been on a controlled programme or if a large burden is suspected:
**Fenbendazole at 5mg/kg (lower dose with only 50% efficacy against ''Parasacaris'', this is the dose recommended for mature horses)
**Fenbendazole at 5mg/kg PO (lower dose with only 50% efficacy against ''Parasacaris'')
**Followed one week later by a full dose of Fenbendazole at 10mg/kg
**Followed one week later by a full dose of Fenbendazole at 10mg/kg PO
*Regular faecal worm egg counts should be conducted to monitor the effects of the anthelmintic schedule and the presence of resistance
*Regular faecal worm egg counts should be conducted to monitor the effects of the anthelmintic schedule and the presence of resistance
*Clean pasture management including the regular removal of faeces
*Clean pasture management including the regular removal of faeces