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Journal of veterinary internal medicine2008; 22(5); 1203-1209; doi: 10.1111/j.1939-1676.2008.0152.x

Bacteremia in equine neonatal diarrhea: a retrospective study (1990-2007).

Abstract: Bacteremia in sick foals is associated with survival, but the association of bacteremia and diarrhea is not reported. Objective: Neonatal foals with diarrhea will commonly be bacteremic. Methods: One hundred and thirty-three neonatal foals. Methods: Records of all foals <30 days of age presenting with diarrhea between January 1990 and September 2007 were reviewed. Results: Sixty-six of 133 foals (50%) were bacteremic at admission, with 75 isolates from the 66 samples. The blood culture from a further 18 foals (13.5%) grew coryneform bacteria. Nine foals (6.8%) had 2 or more organisms grown on blood culture. One foal had 5 different organisms, interpreted as contamination. Forty-eight foals (36%) had no growth on admission blood cultures. No cultures isolated fungal organisms. Excluding coryneform bacteria, 43 isolates (57%) were Gram-negative organisms and 32 isolates (43%) were Gram-positive organisms. The most common isolate was Enterococcus spp. (22 isolates, 29%), followed by Pantoea agglomerans (13 isolates, 17%). IgG concentration at admission was not associated with blood culture status. Blood culture status was not associated with survival to hospital discharge. Conclusions: Bacteremia is common in neonatal foals with diarrhea. Decisions regarding antimicrobial selection should be made with these differences in mind.
Publication Date: 2008-07-11 PubMed ID: 18638014DOI: 10.1111/j.1939-1676.2008.0152.xGoogle Scholar: Lookup
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  • Journal Article

Summary

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The research study discussed investigates the occurrence and type of bacteremia (bacteria in the bloodstream) in neonatal foals (young horses) presenting with diarrhea. Their findings reveal the most common bacterial organisms found in these foals and suggest that this information should be considered when deciding on antimicrobial treatments.

Objective and Methodology of the Study

  • The study aims to uncover the frequency and types of bacteremia in neonatal foals suffering from diarrhea.
  • Medical records of 133 foals under 30 days old suffering from diarrhea and treated from January 1990 to September 2007 were examined.

Research Findings

  • Out of the 133 foals, 66 (or half of them) were bacteremic upon admission. These samples yielded 75 bacterial isolates.
  • In 18 additional foals (13.5%), blood cultures grew coryneform bacteria, a group of bacteria normally found on the skin.
  • Nine foals (6.8%) had two or more types of organisms grown in their blood cultures. Remarkably, one foal was found with five, which the researchers interpreted as contamination.
  • In 48 foals (36%), no bacterial growth was detected in their admission blood cultures.
  • Fungal organisms were not found in any of the cultures.
  • Out of all the isolates, 43 were Gram-negative and 32 were Gram-positive bacteria, excluding the coryneform.
  • The most common bacterium found was Enterococcus spp., displaying in 22 isolates (29%), trailed by Pantoea agglomerans in 13 isolates (17%).
  • The study found no connection between the IgG (an antibody) concentration at admission and the status of the blood culture.
  • There was also no relation observed between blood culture status and the survival of the foals till hospital discharge.

Conclusions

  • The research concludes that bacteremia is frequently observed in neonatal foals presenting with diarrhea.
  • Therefore, when selecting antimicrobial treatments for such cases, these microbial differences should be taken into account.

Cite This Article

APA
Hollis AR, Wilkins PA, Palmer JE, Boston RC. (2008). Bacteremia in equine neonatal diarrhea: a retrospective study (1990-2007). J Vet Intern Med, 22(5), 1203-1209. https://doi.org/10.1111/j.1939-1676.2008.0152.x

Publication

ISSN: 0891-6640
NlmUniqueID: 8708660
Country: United States
Language: English
Volume: 22
Issue: 5
Pages: 1203-1209

Researcher Affiliations

Hollis, A R
  • New Bolton Center, Kennett Square, PA 19384, USA.
Wilkins, P A
    Palmer, J E
      Boston, R C

        MeSH Terms

        • Animals
        • Animals, Newborn
        • Anti-Bacterial Agents / pharmacology
        • Bacteremia / microbiology
        • Bacteremia / veterinary
        • Bacteria / classification
        • Bacteria / drug effects
        • Critical Illness
        • Diarrhea / microbiology
        • Diarrhea / veterinary
        • Drug Resistance, Bacterial
        • Horse Diseases / microbiology
        • Horses
        • Immunity, Maternally-Acquired

        Citations

        This article has been cited 20 times.
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