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Volume 31, Number 7—July 2025

Synopsis

Human Streptococcus suis Infections, South America, 1995–2024

M’hensa Vincent De Paul Bakpatina-Batako, Kevin Li, Sonia Lacouture, Lucía Cipolla, Ariel Gianecini, Mónica Prieto, Marcelo Gottschalk, and Nahuel FittipaldiComments to Author 
Author affiliation: Author affiliations: Université de Montréal Faculté de médecine vétérinaire, St-Hyacinthe, Quebec, Canada (M.V.D.P. Bakpatina-Batako, K. Li, S. Lacouture, M. Gottschalk, N. Fittipaldi); Instituto Nacional de Enfermedades Infecciosas, ANLIS Dr. Carlos G. Malbrán, Buenos Aires, Argentina (L. Cipolla, A. Gianecini, M. Prieto)

Main Article

Table 2

Characteristics of patients and isolates for the 8 new cases of human Streptococcus suis infection from Argentina, South America, 2017–2024*

Year Patient
Isolate
Age, y/sex Disease Contact with swine or pork Outcome Notes Isolate ID Source Serotype ST Virulence markers
2017
42/M
NVE
Yes, pig farmer
Survived
None

26-17
Blood
Untypable†
1
mrp, epf, sly
2018
1/F
Meningitis
Unknown, lived in rural area
Survived
None

868-18
Blood
2
1
mrp, epf, sly
2019
Adult/M‡
Meningitis
Unknown
Survived
None

724-19
CSF
2
1
mrp, epf, sly
2020
38/M
Meningitis
No, lived in urban area
Survived
Inhalation drug user

247-20
Blood, CSF§
2
1
mrp, epf, sly
2021
47/M
Meningitis
Yes, consumed pork
Survived
Wild boar hunter

521-21
Blood, CSF§
2
1
mrp, epf, sly
2022
48/M
Meningitis
Yes, consumed pork
Survived
Wild boar hunter

395-22
CSF
2
1
mrp, epf, sly
2022
45/M
Meningitis
Yes, handled not commercial pig
Survived
None

931-22
CSF
2
1
mrp, epf, sly
2024 55/M STSLS Yes Died None 649-24 Blood 2 1 mrp, epf, sly

*ID, identification; CSF, cerebrospinal fluid; epf extracellular protein factor; mrp, muramidase released protein; NVE, native valve endocarditis; sly, suilysin; STSLS, streptococcal toxic shock–like syndrome; ST, sequence type as defined by multilocus sequence typing. †Untypable by both serologic and molecular methods. ‡Precise age not available. §Only the isolate recovered from CSF was included in this investigation, although both were typed.

Main Article

Page created: May 08, 2025
Page updated: May 30, 2025
Page reviewed: May 30, 2025
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