title: Persistence of Ehrlichia phagocytophila infection in lambs in relation to clinical parameters and antibody responses.
abstract: Five lambs were infected experimentally with Ehrlichia phagocytophila and examined regularly during the next six months. The lambs all had recurrences of parasitaemia at various times but had a fever on only 21 per cent of these occasions. A reduced number of leucocytes was observed in all the lambs for at least eight weeks. All the lambs were still infected four months after inoculation with E phagocytophila. After six months, blood from four of the five lambs was infective when inoculated into susceptible lambs.
authors.affiliation: Department of Sheep and Goat Research, Norwegian College of Veterinary Medicine, Sandnes, Norway.
authors.forename: S
authors.initials: S
authors.lastname: Stuen
authors.forename: E O
authors.initials: EO
authors.lastname: Engvall
authors.forename: K
authors.initials: K
authors.lastname: Artursson
mesh_terms: D000818:Animals; D000917:Antibody Formation; D004536:Ehrlichia / Q000472:pathogenicity*; D016873:Ehrlichiosis / Q000276:immunology / Q000662:veterinary*; D018512:Parasitemia; D012008:Recurrence; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology / Q000469:parasitology*