title: Actinobacillus suis septicaemia in two foals.
abstract: A 24-hour-old Hackney ony filly developed signs of weakness, depression and a poor suck reflex, with harsh lung sounds over both fields, and a 48-hour-old Arabian colt from a normal birth which had sucked vigorously developed loose stools and became depressed, weak and anorectic. Both foals had serum IgG concentrations greater than 800 mg/dl, but each had a severe neutropenia with a left shift, and blood cultures from both of them yielded Actinobacillus suis. The A suis isolates had different antimicrobial susceptibility patterns and, in the case of the Arabian, the isolate was resistant to commonly used broad spectrum antimicrobial agents.
authors.affiliation: Department of Medical Sciences, Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of Wisconsin, Madison 53706-1102 , USA.
authors.forename: K M
authors.initials: KM
authors.lastname: Nelson
authors.forename: B J
authors.initials: BJ
authors.lastname: Darien
authors.forename: D M
authors.initials: DM
authors.lastname: Konkle
authors.forename: F A
authors.initials: FA
authors.lastname: Hartmann
mesh_terms: D000188:Actinobacillus / Q000187:drug effects / Q000276:immunology / Q000302:isolation & purification*; D000189:Actinobacillus Infections / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary*; D000818:Animals; D000900:Anti-Bacterial Agents; D000907:Antibodies, Bacterial / Q000097:blood; D016470:Bacteremia / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary*; D003967:Diarrhea / Q000382:microbiology / Q000662:veterinary; D004198:Disease Susceptibility; D004352:Drug Resistance, Microbial; D004359:Drug Therapy, Combination / Q000627:therapeutic use; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D006734:Horse Diseases / Q000188:drug therapy / Q000382:microbiology*; D006736:Horses; D007074:Immunoglobulin G / Q000097:blood; D008297:Male; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D009503:Neutropenia / Q000382:microbiology / Q000662:veterinary
chemical_list: D000900:Anti-Bacterial Agents; D000907:Antibodies, Bacterial; D007074:Immunoglobulin G