Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Oct;26(10):2522-2524.
doi: 10.3201/eid2610.191485.

Streptococcus equi Subspecies zooepidemicus and Sudden Deaths in Swine, Canada

Matheus de O Costa, Brad Lage

Streptococcus equi Subspecies zooepidemicus and Sudden Deaths in Swine, Canada

Matheus de O Costa et al. Emerg Infect Dis. 2020 Oct.

Abstract

Historically described as a commensal of the swine upper respiratory tract, Streptococcus equi subspecies zooepidemicus was previously reported as an important swine pathogen only in Asia. Here we report the isolation and whole genome characterization of S. equi subsp. zooepidemicus associated with a sudden death outbreak in pigs in Canada.

Keywords: Antimicrobial resistance; Canada; Mycoplasma hyopneumoniae; Streptococcus equi; bacteria; cocci; lymph nodes; mortality; outbreak; pneumonia; sows; sudden deaths; swine; zooepidemicus.

PubMed Disclaimer

Figures

Figure
Figure
Phylogenetic tree (all-shared proteins) of Streptococcus equi subspecies zooepidemicus whole-genome sequences obtained from outbreak in pigs from Canada (blue blocks, PRJNA578379), compared with previously characterized genome sequences from GenBank (n = 28). Tree inferred using BLAST (https://blast.ncbi.nlm.nih.gov), followed by FastTree within the PATRIC package (5). Support values shown indicate the number of times a particular branch was observed in the support trees using gene-wise jackknifing. Shaded colors reflect similar host taxonomy associated with a branch (>3 isolates).
See this image and copyright information in PMC

References

    1. Pelkonen S, Lindahl SB, Suomala P, Karhukorpi J, Vuorinen S, Koivula I, et al. Transmission of Streptococcus equi subspecies zooepidemicus infection from horses to humans. Emerg Infect Dis. 2013;19:1041–8. - PMC - PubMed
    1. FitzGerald W, Crowe B, Brennan P, Cassidy JP, Leahy M, McElroy MC, et al. Acute fatal haemorrhagic pneumonia caused by Streptococcus equi zooepidemicus in greyhounds in Ireland with subsequent typing of the isolates. Vet Rec. 2017;181:119. 10.1136/vr.104275 - DOI - PubMed
    1. Kernaghan S, Bujold AR, MacInnes JI. The microbiome of the soft palate of swine. Anim Health Res Rev. 2012;13:110–20. 10.1017/S1466252312000102 - DOI - PubMed
    1. Feng Z, Hu J. Outbreak of swine streptococcosis in Sichan province and identification of pathogen. Anim Husbandry Vet Med Lett. 1977;2:7–12.
    1. Wattam AR, Davis JJ, Assaf R, Boisvert S, Brettin T, Bun C, et al. Improvements to PATRIC, the all-bacterial Bioinformatics Database and Analysis Resource Center. Nucleic Acids Res. 2017;45:D535–42. - PMC - PubMed