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Principles of Disease Surveillance

Principles of Disease Surveillance

Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...

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Related Experiment Video

Updated: Sep 18, 2025

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model

Published on: July 1, 2018

Human Streptococcus suis Infections, South America, 1995-2024.

M'hensa Vincent De Paul Bakpatina-Batako, Kevin Li, Sonia Lacouture

Emerging Infectious Diseases

|June 25, 2025

Summary

Streptococcus suis, a swine pathogen, is increasingly found in South America, causing zoonotic infections. Enhanced surveillance is crucial due to rising cases, primarily linked to pig exposure and resulting in meningitis.

Keywords:

Argentina Brazil Chile French Guiana South America Streptococcus parasuis Streptococcus suis Uruguay antimicrobial resistance bacteria whole-genome sequencing zoonoses

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Last Updated: Sep 18, 2025

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model

Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model

Published on: July 1, 2018

Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/43

Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/43

Published on: September 11, 2020

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling

Published on: April 7, 2015

Area of Science:

Veterinary Microbiology
Infectious Diseases
Public Health

Background:

Streptococcus suis is a significant swine pathogen responsible for zoonotic infections globally.
Recent observations indicate a growing presence of Streptococcus suis in South America.

Purpose of the Study:

To comprehensively review and document Streptococcus suis cases in South America.
To analyze the clinical manifestations, outcomes, and epidemiological links of these infections.

Main Methods:

Systematic review of all available reports on Streptococcus suis infections in South America.
Identification and documentation of human cases, including novel infections.
Reclassification of previously reported cases where necessary.

Main Results:

Identified Streptococcus suis cases in Argentina, Brazil, Chile, French Guiana, and Uruguay, totaling 47 documented human infections.
Meningitis was the predominant clinical presentation (85%), with a case-fatality rate of 4%.
Infections were mainly associated with pig or pork exposure, including consumption of undercooked meat; Argentina reported a disproportionately high number of cases.

Conclusions:

Streptococcus suis represents an emerging zoonotic threat in South America.
Consistent and enhanced regional surveillance for Streptococcus suis is urgently needed to manage and prevent further spread.