Peri-parturient deposition of nematode eggs by ewes and residual pasture contamination as sources of infection for lambs.
D000821:Animal Feed; D000818:Animals; D002353:Carrier State / Q000662:veterinary; D004197:Disease Reservoirs / Q000662:veterinary; D005260:Female; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases; D014252:Trichostrongyloidiasis / Q000662:veterinary*