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Journal of veterinary internal medicine2009; 23(6); 1254-1260; doi: 10.1111/j.1939-1676.2009.0383.x

Infectious agents detected in the feces of diarrheic foals: a retrospective study of 233 cases (2003-2008).

Abstract: Diarrhea is common in foals but there are no studies investigating the relative prevalence of common infectious agents in a population of hospitalized diarrheic foals. Objective: To determine the frequency of detection of infectious agents in a population of hospitalized foals with diarrhea and to determine if detection of specific pathogens is associated with age, outcome, or clinicopathologic data. Methods: Two hundred and thirty-three foals < or = 10 months of age with diarrhea examined at a referral institution. Methods: Retrospective case series. Each foal was examined for Salmonella spp., viruses, Clostridium difficile toxins, Clostridium perfringens culture, C. perfringens enterotoxin, Cryptosporidium spp., and metazoan parasites in feces collected at admission or at the onset of diarrhea. Results: At least 1 infectious agent was detected in 122 foals (55%). Rotavirus was most frequently detected (20%) followed by C. perfringens (18%), Salmonella spp. (12%), and C. difficile (5%). Foals 1 month of age were significantly more likely to have Salmonella spp. (OR = 2.6, 95% CI = 1.2-6.0), rotavirus (OR = 13.3, 95% CI = 5.3-33), and parasites (OR = 23, 95% CI = 3.1-185) detected compared with younger foals. Overall 191 of the 223 foals (87%) survived. The type of infectious agent identified in the feces or bacteremia was not significantly associated with survival. Conclusions: In the population studied, foals with diarrhea had a good prognosis regardless of which infectious agent was identified in the feces.
Publication Date: 2009-09-11 PubMed ID: 19747192PubMed Central: PMC7166729DOI: 10.1111/j.1939-1676.2009.0383.xGoogle Scholar: Lookup
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  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research study investigates the prevalence of common infectious agents in the feces of hospitalized foals suffering from diarrhea and explores whether the detection of specific pathogens is associated with the age, outcome, or clinicopathologic data of these foals.

Objective and Methodology

  • The researchers wanted to ascertain the frequency of detection of infectious agents in a population of hospitalized foals with diarrhea, and to explore if the discovery of specific pathogens is linked to factors such as age, outcome, or clinicopathologic data.
  • They studied a retrospective case series of 233 foals, all 10 months of age or younger, that showed symptoms of diarrhea and were examined at a referral institution.
  • Each foal’s feces were examined for a variety of infectious agents: Salmonella spp., viruses, Clostridium difficile toxins, Clostridium perfringens culture, C. perfringens enterotoxin, Cryptosporidium spp., and metazoan parasites. The samples were collected either at admission or at the onset of diarrhea.

Results

  • In 55% of the foals, at least one infectious agent was detected. The most frequently detected was Rotavirus (20%), followed by C. perfringens (18%), Salmonella spp. (12%), and C. difficile (5%).
  • Foals under 1 month of age were significantly more likely to test positive for C. perfringens or show negative fecal diagnostic results than older foals. Conversely, foals over 1 month old were significantly more likely to test positive for Salmonella spp., rotavirus, and parasites compared with younger foals.
  • Out of the 223 foals, 87% survived, indicating a good prognosis for foals with diarrhea. The type of infectious agent found in the feces had no significant association with survival.

Conclusions

  • Based on the study’s findings, it was concluded that foals with diarrhea generally have a good prognosis, irrespective of the infectious agent identified in their feces.

Cite This Article

APA
Frederick J, Giguère S, Sanchez LC. (2009). Infectious agents detected in the feces of diarrheic foals: a retrospective study of 233 cases (2003-2008). J Vet Intern Med, 23(6), 1254-1260. https://doi.org/10.1111/j.1939-1676.2009.0383.x

Publication

ISSN: 0891-6640
NlmUniqueID: 8708660
Country: United States
Language: English
Volume: 23
Issue: 6
Pages: 1254-1260

Researcher Affiliations

Frederick, J
  • Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
Giguère, S
    Sanchez, L C

      MeSH Terms

      • Animals
      • Diarrhea / microbiology
      • Diarrhea / veterinary
      • Feces / microbiology
      • Gastrointestinal Diseases / microbiology
      • Gastrointestinal Diseases / veterinary
      • Horse Diseases / blood
      • Horse Diseases / microbiology
      • Horses
      • Retrospective Studies
      • Sepsis / blood
      • Sepsis / microbiology
      • Sepsis / veterinary

      References

      This article includes 25 references
      1. Urquhart K. Diarrhoea in foals.. In Pract 1981 Jan;3(1):22-3, 25, 27, 29.
        pubmed: 6286504doi: 10.1136/inpract.3.1.22google scholar: lookup
      2. Magdesian KG. Neonatal foal diarrhea.. Vet Clin North Am Equine Pract 2005 Aug;21(2):295-312, vi.
        pmc: PMC7135406pubmed: 16051051doi: 10.1016/j.cveq.2005.04.009google scholar: lookup
      3. Lester GD, Madigan JE. Diarrhea in neonatal foals. In: Smith BP, ed. Large Animal Internal Medicine, 4th ed St Louis, MO: Mosby‐Elsevier; 2009:315–319.
      4. Magdesian KG, Hirsh DC, Jang SS, Hansen LM, Madigan JE. Characterization of Clostridium difficile isolates from foals with diarrhea: 28 cases (1993-1997).. J Am Vet Med Assoc 2002 Jan 1;220(1):67-73.
        pubmed: 12680451doi: 10.2460/javma.2002.220.67google scholar: lookup
      5. Grinberg A, Learmonth J, Kwan E, Pomroy W, Lopez Villalobos N, Gibson I, Widmer G. Genetic diversity and zoonotic potential of Cryptosporidium parvum causing foal diarrhea.. J Clin Microbiol 2008 Jul;46(7):2396-8.
        pmc: PMC2446936pubmed: 18508944doi: 10.1128/jcm.00936-08google scholar: lookup
      6. Netherwood T, Wood JL, Townsend HG, Mumford JA, Chanter N. Foal diarrhoea between 1991 and 1994 in the United Kingdom associated with Clostridium perfringens, rotavirus, Strongyloides westeri and Cryptosporidium spp.. Epidemiol Infect 1996 Oct;117(2):375-83.
        pmc: PMC2271710pubmed: 8870636doi: 10.1017/s0950268800001564google scholar: lookup
      7. Guy JS, Breslin JJ, Breuhaus B, Vivrette S, Smith LG. Characterization of a coronavirus isolated from a diarrheic foal.. J Clin Microbiol 2000 Dec;38(12):4523-6.
      8. Browning GF, Chalmers RM, Snodgrass DR, Batt RM, Hart CA, Ormarod SE, Leadon D, Stoneham SJ, Rossdale PD. The prevalence of enteric pathogens in diarrhoeic thoroughbred foals in Britain and Ireland.. Equine Vet J 1991 Nov;23(6):405-9.
      9. Zink MC, Yager JA, Smart NL. Corynebacterium equi Infections in Horses, 1958-1984: A Review of 131 Cases.. Can Vet J 1986 May;27(5):213-7.
        pmc: PMC1680250pubmed: 17422658
      10. Tzipori S, Hayes J, Sims L, Withers M. Streptococcus durans: an unexpected enteropathogen of foals.. J Infect Dis 1984 Oct;150(4):589-93.
        pubmed: 6386998doi: 10.1093/infdis/150.4.589google scholar: lookup
      11. Myers LL, Shoop DS, Byars TD. Diarrhea associated with enterotoxigenic Bacteroides fragilis in foals.. Am J Vet Res 1987 Nov;48(11):1565-7.
        pubmed: 3434899
      12. East LM, Savage CJ, Traub-Dargatz JL, Dickinson CE, Ellis RP. Enterocolitis associated with Clostridium perfringens infection in neonatal foals: 54 cases (1988-1997).. J Am Vet Med Assoc 1998 Jun 1;212(11):1751-6.
        pubmed: 9621884
      13. Powell DG, Dwyer RM, Traub-Dargatz JL, Fulker RH, Whalen JW Jr, Srinivasappa J, Acree WM, Chu HJ. Field study of the safety, immunogenicity, and efficacy of an inactivated equine rotavirus vaccine.. J Am Vet Med Assoc 1997 Jul 15;211(2):193-8.
        pubmed: 9227750
      14. Ekiri AB, MacKay RJ, Gaskin JM, Freeman DE, House AM, Giguère S, Troedsson MR, Schuman CD, von Chamier MM, Henry KM, Hernandez JA. Epidemiologic analysis of nosocomial Salmonella infections in hospitalized horses.. J Am Vet Med Assoc 2009 Jan 1;234(1):108-19.
        pubmed: 19119974doi: 10.2460/javma.234.1.108google scholar: lookup
      15. Brewer BD, Koterba AM. Development of a scoring system for the early diagnosis of equine neonatal sepsis.. Equine Vet J 1988 Jan;20(1):18-22.
      16. Altman DG. Preparing to analyse data. In: Altman DG, ed. Practical Statistics for Medical Research. London: Chapman and Hall; 1991:132–142.
      17. Dwyer RM, Powell DG, Roberts W. A study of the etiology and control of infectious diarrhea among foals in central Kentucky. Proc Am Assoc Equine Pract 1990;36:337–355.
      18. Conner ME, Darlington RW. Rotavirus infection in foals.. Am J Vet Res 1980 Oct;41(10):1699-703.
        pubmed: 6261616
      19. Tillotson K, Traub-Dargatz JL, Dickinson CE, Ellis RP, Morley PS, Hyatt DR, Magnuson RJ, Riddle WT, Bolte D, Salman MD. Population-based study of fecal shedding of Clostridium perfringens in broodmares and foals.. J Am Vet Med Assoc 2002 Feb 1;220(3):342-8.
        pubmed: 11829266doi: 10.2460/javma.2002.220.342google scholar: lookup
      20. Weese JS, Staempfli HR, Prescott JF. A prospective study of the roles of clostridium difficile and enterotoxigenic Clostridium perfringens in equine diarrhoea.. Equine Vet J 2001 Jul;33(4):403-9.
        pubmed: 11469775doi: 10.2746/042516401776249534google scholar: lookup
      21. Smith BP, Reina-Guerra M, Hardy AJ, Habasha F. Equine salmonellosis: experimental production of four syndromes.. Am J Vet Res 1979 Aug;40(8):1072-7.
        pubmed: 393147
      22. Hollis AR, Wilkins PA, Palmer JE, Boston RC. Bacteremia in equine neonatal diarrhea: a retrospective study (1990-2007).. J Vet Intern Med 2008 Sep-Oct;22(5):1203-9.
      23. Sanchez LC, Giguère S, Lester GD. Factors associated with survival of neonatal foals with bacteremia and racing performance of surviving Thoroughbreds: 423 cases (1982-2007).. J Am Vet Med Assoc 2008 Nov 1;233(9):1446-52.
        pubmed: 18980499doi: 10.2460/javma.233.9.1446google scholar: lookup
      24. Corley KT, Furr MO. Evaluation of a score designed to predict sepsis in foals. J Vet Emerg Crit Care 2003;13:149–155.
      25. Stewart AJ, Hinchcliff KW, Saville WJ, Jose-Cunilleras E, Hardy J, Kohn CW, Reed SM, Kowalski JJ. Actinobacillus sp. bacteremia in foals: clinical signs and prognosis.. J Vet Intern Med 2002 Jul-Aug;16(4):464-71.

      Citations

      This article has been cited 34 times.
      1. Williams NJ, Slovis NM, Browne NS, Troedsson MHT, Giguėre S, Hernandez JA. Enterococcus durans infection and diarrhea in Thoroughbred foals. J Vet Intern Med 2022 Nov;36(6):2224-2229.
        doi: 10.1111/jvim.16568pubmed: 36285839google scholar: lookup
      2. Hain-Saunders NMR, Knight DR, Bruce M, Riley TV. Clostridioides difficile infection and One Health: an equine perspective. Environ Microbiol 2022 Mar;24(3):985-997.
        doi: 10.1111/1462-2920.15898pubmed: 35001483google scholar: lookup
      3. Goodman-Davis R, Figurska M, Cywinska A. Gut Microbiota Manipulation in Foals-Naturopathic Diarrhea Management, or Unsubstantiated Folly?. Pathogens 2021 Sep 4;10(9).
        doi: 10.3390/pathogens10091137pubmed: 34578169google scholar: lookup
      4. Nemoto M, Matsumura T. Equine rotavirus infection. J Equine Sci 2021 Mar;32(1):1-9.
        doi: 10.1294/jes.32.1pubmed: 33776534google scholar: lookup
      5. Barr B. Nutritional management of the foal with diarrhoea. Equine Vet Educ 2018 Feb;30(2):100-105.
        doi: 10.1111/eve.12564pubmed: 32313395google scholar: lookup
      6. Taylor S. A review of equine sepsis. Equine Vet Educ 2015 Feb;27(2):99-109.
        doi: 10.1111/eve.12290pubmed: 32313390google scholar: lookup
      7. Mallicote M, House AM, Sanchez LC. A review of foal diarrhoea from birth to weaning. Equine Vet Educ 2012 Apr;24(4):206-214.
      8. Iida A, Saito H, Amao A, Fujita T, Kato A, Ueda F. The effects of a nutritional supplement containing salacinol in neonatal Thoroughbred foals. J Equine Sci 2020 Mar;31(1):11-15.
        doi: 10.1294/jes.31.11pubmed: 32206034google scholar: lookup
      9. Mehdizadeh Gohari I, Unterer S, Whitehead AE, Prescott JF. NetF-producing Clostridium perfringens and its associated diseases in dogs and foals. J Vet Diagn Invest 2020 Mar;32(2):230-238.
        doi: 10.1177/1040638720904714pubmed: 32081091google scholar: lookup
      10. Oliver-Espinosa O. Foal Diarrhea: Established and Postulated Causes, Prevention, Diagnostics, and Treatments. Vet Clin North Am Equine Pract 2018 Apr;34(1):55-68.
        doi: 10.1016/j.cveq.2017.11.003pubmed: 29395727google scholar: lookup
      11. Schoster A, Staempfli HR, Guardabassi LG, Jalali M, Weese JS. Comparison of the fecal bacterial microbiota of healthy and diarrheic foals at two and four weeks of life. BMC Vet Res 2017 May 30;13(1):144.
        doi: 10.1186/s12917-017-1064-xpubmed: 28558788google scholar: lookup
      12. Olivo G, Lucas TM, Borges AS, Silva RO, Lobato FC, Siqueira AK, da Silva Leite D, Brandão PE, Gregori F, de Oliveira-Filho JP, Takai S, Ribeiro MG. Enteric Pathogens and Coinfections in Foals with and without Diarrhea. Biomed Res Int 2016;2016:1512690.
        doi: 10.1155/2016/1512690pubmed: 28116290google scholar: lookup
      13. Finley A, Gohari IM, Parreira VR, Abrahams M, Staempfli HR, Prescott JF. Prevalence of netF-positive Clostridium perfringens in foals in southwestern Ontario. Can J Vet Res 2016 Jul;80(3):242-4.
        pubmed: 27408339
      14. Pintar KD, Christidis T, Thomas MK, Anderson M, Nesbitt A, Keithlin J, Marshall B, Pollari F. A Systematic Review and Meta-Analysis of the Campylobacter spp. Prevalence and Concentration in Household Pets and Petting Zoo Animals for Use in Exposure Assessments. PLoS One 2015;10(12):e0144976.
        doi: 10.1371/journal.pone.0144976pubmed: 26683667google scholar: lookup
      15. Nemoto M, Oue Y, Higuchi T, Kinoshita Y, Bannai H, Tsujimura K, Yamanaka T, Kondo T. Low prevalence of equine coronavirus in foals in the largest thoroughbred horse breeding region of Japan, 2012-2014. Acta Vet Scand 2015 Sep 22;57(1):53.
        doi: 10.1186/s13028-015-0149-4pubmed: 26395082google scholar: lookup
      16. Uzal FA, Diab SS. Gastritis, Enteritis, and Colitis in Horses. Vet Clin North Am Equine Pract 2015 Aug;31(2):337-58.
        doi: 10.1016/j.cveq.2015.04.006pubmed: 26048413google scholar: lookup
      17. Schoster A, Staempfli HR, Abrahams M, Jalali M, Weese JS, Guardabassi L. Effect of a probiotic on prevention of diarrhea and Clostridium difficile and Clostridium perfringens shedding in foals. J Vet Intern Med 2015 May-Jun;29(3):925-31.
        doi: 10.1111/jvim.12584pubmed: 25903509google scholar: lookup
      18. Cohen ND, Bourquin JR, Bordin AI, Kuskie KR, Brake CN, Weaver KB, Liu M, Felippe MJ, Kogut MH. Intramuscular administration of a synthetic CpG-oligodeoxynucleotide modulates functional responses of neutrophils of neonatal foals. PLoS One 2014;9(10):e109865.
        doi: 10.1371/journal.pone.0109865pubmed: 25333660google scholar: lookup
      19. Schoster A, Weese JS, Guardabassi L. Probiotic use in horses - what is the evidence for their clinical efficacy?. J Vet Intern Med 2014 Nov-Dec;28(6):1640-52.
        doi: 10.1111/jvim.12451pubmed: 25231539google scholar: lookup
      20. Gohari IM, Arroyo L, Macinnes JI, Timoney JF, Parreira VR, Prescott JF. Characterization of Clostridium perfringens in the feces of adult horses and foals with acute enterocolitis. Can J Vet Res 2014 Jan;78(1):1-7.
        pubmed: 24396174
      21. Kinoshita Y, Niwa H, Katayama Y, Hariu K. Dominant obligate anaerobes revealed in lower respiratory tract infection in horses by 16S rRNA gene sequencing. J Vet Med Sci 2014 Apr;76(4):587-91.
        doi: 10.1292/jvms.13-0272pubmed: 24366152google scholar: lookup
      22. Slovis NM, Elam J, Estrada M, Leutenegger CM. Infectious agents associated with diarrhoea in neonatal foals in central Kentucky: a comprehensive molecular study. Equine Vet J 2014 May;46(3):311-6.
        doi: 10.1111/evj.12119pubmed: 23773143google scholar: lookup
      23. Costa MC, Arroyo LG, Allen-Vercoe E, Stämpfli HR, Kim PT, Sturgeon A, Weese JS. Comparison of the fecal microbiota of healthy horses and horses with colitis by high throughput sequencing of the V3-V5 region of the 16S rRNA gene. PLoS One 2012;7(7):e41484.
        doi: 10.1371/journal.pone.0041484pubmed: 22859989google scholar: lookup
      24. Harris R, Sankar K, Small JA, Suepaul R, Stewart-Johnson A, Adesiyun A. Prevalence and characteristics of enteric pathogens detected in diarrhoeic and non-diarrhoeic foals in trinidad. Vet Med Int 2012;2012:724959.
        doi: 10.1155/2012/724959pubmed: 22792513google scholar: lookup
      25. Long-Croal LM, Wen X, Ostlund EN, Hoshino Y. Concentration of acrylamide in a polyacrylamide gel affects VP4 gene coding assignment of group A equine rotavirus strains with P[12] specificity. Virol J 2010 Jun 23;7:136.
        doi: 10.1186/1743-422X-7-136pubmed: 20573245google scholar: lookup
      26. Borba KER, Legere RM, Canaday NM, Skrobarczyk JW, Arnold ZWT, Cotton-Betteridge E, Poveda C, Criscitiello MF, Bordin AI, Berghman LR, Pollet JBK, Cohen ND. Maternal Immunization with VP8* mRNA Vaccine Yields Superior Passive Transfer of Rotavirus-Neutralizing Antibodies to Foals. Vaccines (Basel) 2026 Jan 9;14(1).
        doi: 10.3390/vaccines14010076pubmed: 41600992google scholar: lookup
      27. Matté YA, Baldasso DZ, Rezende MA, Lui JFM, Seibel AC, Guizzo JA, Frandoloso R, Kreutz LC. Immunological insights into the occurrence of Lawsonia intracellularis in horses from southern Brazil using flow cytometry. Vet World 2025 Apr;18(4):755-762.
      28. Cullinane A, Garvey M, Dayot L, Lukaseviciute G. Equine Rotavirus A Outbreaks in Ireland (2023-2024): An Epidemiological Investigation and Virus Genotyping. Viruses 2025 Mar 31;17(4).
        doi: 10.3390/v17040511pubmed: 40284954google scholar: lookup
      29. Zhu D, Li S, Xu Z, Kulyar MF, Bai X, Wang Y, Wang B, Khateeb E, Deng D, Wang L, Chen Y, Guo A, Shen Y. Comparative analysis of gut microbiota in healthy and diarrheic foals. Microbiol Spectr 2025 Mar 19;13(5):e0087124.
        doi: 10.1128/spectrum.00871-24pubmed: 40105330google scholar: lookup
      30. Bell J, Radial SL, Cuming RS, Trope G, Hughes KJ. Effects of fecal microbiota transplantation on clinical outcomes and fecal microbiota of foals with diarrhea. J Vet Intern Med 2024 Sep-Oct;38(5):2718-2728.
        doi: 10.1111/jvim.17185pubmed: 39266472google scholar: lookup
      31. Kabir A, Lamichhane B, Habib T, Adams A, El-Sheikh Ali H, Slovis NM, Troedsson MHT, Helmy YA. Antimicrobial Resistance in Equines: A Growing Threat to Horse Health and Beyond-A Comprehensive Review. Antibiotics (Basel) 2024 Jul 29;13(8).
        doi: 10.3390/antibiotics13080713pubmed: 39200013google scholar: lookup
      32. Mady EA, Osuga H, Toyama H, El-Husseiny HM, Inoue R, Murase H, Yamamoto Y, Nagaoka K. Relationship between the components of mare breast milk and foal gut microbiome: shaping gut microbiome development after birth. Vet Q 2024 Dec;44(1):1-9.
        doi: 10.1080/01652176.2024.2349948pubmed: 38733121google scholar: lookup
      33. Tuniyazi M, Tang R, Hu X, Fu Y, Zhang N. Carbonate buffer mixture and fecal microbiota transplantation hold promising therapeutic effects on oligofructose-induced diarrhea in horses. Front Vet Sci 2024;11:1388227.
        doi: 10.3389/fvets.2024.1388227pubmed: 38711536google scholar: lookup
      34. Thanissery R, McLaren MR, Rivera A, Reed AD, Betrapally NS, Burdette T, Winston JA, Jacob M, Callahan BJ, Theriot CM. Clostridioides difficile carriage in animals and the associated changes in the host fecal microbiota. Anaerobe 2020 Dec;66:102279.