Influence of a second Anaplasma exposure on the success of treatment to eliminate Anaplasma carrier infections in cattle.
Treatment of adult Anaplasma carrier cows, with long-acting oxytetracycline at dosage levels generally successful in eliminating infection, was unsuccessful when the treatment was preceded or accompanied by a 2nd exposure to A marginale on days 0, 7, or 14 before treatment. Noninfected calves exposed to A marginale 7 days before a similar treatment developed anaplasmosis and became carriers of infection.
D000709:Anaplasma / Q000187:drug effects*; D000712:Anaplasmosis / Q000188:drug therapy* / Q000382:microbiology; D000818:Animals; D002353:Carrier State / Q000188:drug therapy / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000382:microbiology; D005260:Female; D008297:Male; D010118:Oxytetracycline / Q000494:pharmacology / Q000627:therapeutic use*
D010118:Oxytetracycline