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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Streptococcus suis in Brazil: Genotypic, Virulence, and Resistance Profiling of Strains Isolated from Pigs between 2001 and 2016

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Matajira, Carlos E. C. [1] ; Moreno, Luisa Z. [1] ; Poor, Andre P. [1] ; Gomes, Vasco T. M. [1] ; Dalmutt, Andressa C. [1] ; Parra, Beatriz M. [1] ; de Oliveira, Carolina H. [1] ; Barbosa, Mikaela R. F. [2] ; Sato, Maria Ines Z. [2] ; Calderaro, Franco F. [3] ; Moreno, Andrea M. [1]
Total Authors: 11
[1] Univ Sao Paulo, Dept Med Vet Prevent & Saude Anim, Fac Med Vet & Zootecnia, BR-01000000 Sao Paulo - Brazil
[2] Companhia Ambiental Estado Sao Paulo CETESB, BR-01000000 Sao Paulo - Brazil
[3] Univ Paulista UNIP, BR-01000000 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: PATHOGENS; v. 9, n. 1 JAN 2020.
Web of Science Citations: 0

Streptococcus suis remains an important challenge for the worldwide swine industry. Considering that Brazil is a major pork producer and exporter, proper monitoring of the pathogen and resistance rates are required. We present here the characterization of Brazilian S. suis strains isolated over a 15 year period by pulsed-field gel electrophoresis (PFGE) typing, capsular, virulence, and antimicrobial resistance profiling. Serotype prevalence revealed a predominance of serotype 2/1/2 followed by 3, 7, 1/14, 6, 8, 18, 28, and 27; the latter had not yet been reported in Brazil. Resistance profiling enabled the differentiation of nine profiles presenting resistance to three and up to eight antimicrobial classes. Even though an association between the most resistant strains and isolation year starting from 2009 was observed, a high frequency of multidrug-resistant strains isolated from 2001 to 2003 was also detected. This suggests that despite the isolation period, S. suis strains already presented high resistance selection pressure. A slight association of serotype 2/1/2 with some virulence profiles and PFGE pulsotypes was also identified. Nevertheless, no clonal dispersion or persistency of clones over the analyzed years and herds was detected. (AU)

FAPESP's process: 17/09515-4 - Identification and phenotypic characterization of bacterial pathogens causing metritis in sows.
Grantee:André Pegoraro Poor
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/26159-1 - Comparative genome analysis of Streptococcus suis strains isolated from swine in Brazil
Grantee:Carlos Emilio Cabrera Matajira
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/25745-7 - Virulence assessment and phenotypic and genomic characterization of Corynebacterium spp. isolated from sow's urinary tract infection
Grantee:Luisa Zanolli Moreno
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 19/01192-7 - Characterization of bacterial pathogens causing metritis in swine using culture and metagenomics analysis
Grantee:André Pegoraro Poor
Support type: Scholarships in Brazil - Doctorate (Direct)