Lawsonia intracellularis proliferative enteropathy in a weanling foal in Australia.
A 6-month-old Quarter Horse weanling filly was presented with lethargy, weight loss, inappetance, mild diarrhoea, marked ventral oedema and severe panhypoproteinaemia. Serum antibody titres for Lawsonia intracellularis were very high but PCR to detect faecal shedding of the organism was negative. Proliferative enteropathy due to L. intracellularis infection was diagnosed. After treatment for 4 weeks with oral erythromycin and rifampicin the filly made a complete recovery.
McClintock
S A
SA
New South Wales Agriculture, Elizabeth Macarthur Agricultural Institute, PMB 8, Camden New South Wales 2570.
Collins
A M
AM
D000818:Animals; D000831:Animals, Newborn; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D000907:Antibodies, Bacterial / Q000097:blood; D045824:Desulfovibrionaceae Infections / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology / Q000662:veterinary*; D004917:Erythromycin / Q000627:therapeutic use; D005243:Feces / Q000382:microbiology; D005260:Female; D006734:Horse Diseases / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D006736:Horses; D020639:Lawsonia Bacteria / Q000276:immunology / Q000302:isolation & purification; D012293:Rifampin / Q000627:therapeutic use; D016896:Treatment Outcome; D014886:Weaning
D000900:Anti-Bacterial Agents; D000907:Antibodies, Bacterial; D004917:Erythromycin; D012293:Rifampin