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Volume 28, Number 1—January 2022

Streptococcus gallolyticus and Bacterial Endocarditis in Swine, United States, 2015–2020

Panchan SitthicharoenchaiComments to Author , Eric R. Burrough, Bailey L. Arruda, Orhan Sahin, Jessica G. dos Santos, Drew R. Magstadt, Pablo E. Piñeyro, Kent J. Schwartz, and Michael C. Rahe
Author affiliations: Iowa State University, Ames, Iowa, USA (P. Sitthicharoenchai, E.R. Burrough, O. Sahin, J.G. dos Santos, D.R. Magstadt, P.E. Piñeyro, K.J. Schwartz, M.C. Rahe); US Department of Agriculture, Ames (B.L. Arruda)

Main Article


Frequency of bacterial pathogen isolation from 255 swine with determined causes of bacterial endocarditis, Iowa State University Veterinary Diagnostic Laboratory, Ames, Iowa, USA, 2015–2020

Bacterial pathogens Frequency of isolation, no. (%) Sole bacterium isolated, no. cases Isolated in mixed infection, no. cases
Streptococcus spp.
S. suis 196 (67.59) 166 30
S. equisimilis 37 (12.76) 15 22
S. gallolyticus 22 (7.59) 21 1
Other streptococci
10 (3.45)
Erysipelothrix rhusiopathiae 9 (3.10) 5 4
Actinobacillus spp. 9 (3.10) 2 7
Trueperella pyogenes 3 (1.04) 1 2
Enterococcus faecium 2 (0.69) 2 0
Vagococcus fluvialis 1 (0.34) 1 0
Staphylococcus aureus 1 (0.34) 1 0
Total bacteria* 290 (100) Not applicable Not applicable

*Calculations based on 290 isolations from 255 cases.

Main Article

Page created: November 10, 2021
Page updated: December 20, 2021
Page reviewed: December 20, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.