title: Infection of splenectomized calves with Anaplasma ovis.
abstract: An Anaplasma was not recovered from 2 splenectomized calves at 17 days after A ovis inoculation, but was recovered from 1 of the calves at 177 days after inoculation. In a 3rd calf exposed to A ovis, an Anaplasma was recovered at 177 and 262 days after inoculation. the Anaplasma recovered from these calves was determined to be A ovis on the basis of cross-infectivity trials, using Anaplasma marginale.
mesh_terms: D000709:Anaplasma / Q000276:immunology / Q000302:isolation & purification / Q000472:pathogenicity; D000712:Anaplasmosis / Q000382:microbiology*; D000818:Animals; D001769:Blood / Q000382:microbiology; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D008297:Male; D013045:Species Specificity; D013154:Spleen / Q000276:immunology*; D013156:Splenectomy / Q000662:veterinary