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.
Publication Date: 1996-01-13 PubMed ID: 8629322DOI: 10.1136/vr.138.2.39Google Scholar: Lookup
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Summary
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This research article presents a study of two foals, a Hackney filly and an Arabian colt, who developed physical symptoms of weakness and depression due to septicemia caused by Actinobacillus suis, despite having adequate levels of serum IgG. The two isolates of the bacteria showed different sensitivity to antimicrobial treatments.
Case Presentation
- The article describes the symptoms observed in two young foals – a 24-hour-old Hackney filly and a 48-hour-old Arabian colt. The filly presented signs of weakness, depression, poor suck reflex, and harsh lung sounds, whereas the colt developed loose stools and exhibited signs of depression, weakness, and a decrease in appetite.
Diagnosis
- Despite having adequate levels of serum IgG (greater than 800 mg/dl), both foals were found to have severe neutropenia, signaling a potential infection. Blood cultures from both foals later confirmed the presence of the bacteria Actinobacillus suis causing septicemia.
Antimicrobial Susceptibility of Actinobacillus suis
- The bacterial isolates from each of the two foals demonstrated different susceptibility patterns to antimicrobial agents. It was noted that the isolate from the Arabian colt showed resistance towards commonly used broad-spectrum antimicrobial agents. This suggests that treatment plans need to consider the specific antimicrobial susceptibility of each strain of Actinobacillus suis.
Cite This Article
APA
Nelson KM, Darien BJ, Konkle DM, Hartmann FA.
(1996).
Actinobacillus suis septicaemia in two foals.
Vet Rec, 138(2), 39-40.
https://doi.org/10.1136/vr.138.2.39 Publication
Researcher Affiliations
- Department of Medical Sciences, Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of Wisconsin, Madison 53706-1102 , USA.
MeSH Terms
- Actinobacillus / drug effects
- Actinobacillus / immunology
- Actinobacillus / isolation & purification
- Actinobacillus Infections / drug therapy
- Actinobacillus Infections / microbiology
- Actinobacillus Infections / veterinary
- Animals
- Anti-Bacterial Agents
- Antibodies, Bacterial / blood
- Bacteremia / drug therapy
- Bacteremia / microbiology
- Bacteremia / veterinary
- Diarrhea / microbiology
- Diarrhea / veterinary
- Disease Susceptibility
- Drug Resistance, Microbial
- Drug Therapy, Combination / therapeutic use
- Enzyme-Linked Immunosorbent Assay / veterinary
- Female
- Horse Diseases / drug therapy
- Horse Diseases / microbiology
- Horses
- Immunoglobulin G / blood
- Male
- Microbial Sensitivity Tests / veterinary
- Neutropenia / microbiology
- Neutropenia / veterinary
Citations
This article has been cited 2 times.- Sternberg S. Specific immune response of mares and their newborn foals to Actinobacillus spp. present in the oral cavity. Acta Vet Scand 2001;42(2):237-42.
- Ricard RM, St-Jean G, Atwal HK, Wobeser BK. A retrospective study of equine perinatal loss in Canada (2007 to 2020). Can Vet J 2023 Oct;64(10):933-940.
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