Infectious Agents and Stroke: A Systematic Review

Alia Saberi1, Shahin Akhondzadeh2, Samira Kazemi3

  • 1Department of Neurology, Neuroscience Research Center, Poursina Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.

Abstract

Insights

Infectious agents like viruses (HCV, HBV, HIV), bacteria (Streptococcus mutans), parasites (Toxocara, Toxoplasma), and fungi (Rhizopus) are linked to stroke. Understanding these pathogen-stroke associations aids in infection control and stroke prevention.

Area of Science:

  • Infectious diseases
  • Neurology
  • Public Health

Background:

  • Stroke is a leading cause of death and disability globally.
  • Infectious agents are increasingly recognized as potential stroke risk factors.
  • Identifying pathogen-stroke links is crucial for targeted interventions.

Purpose of the Study:

  • To systematically review and synthesize evidence on the association between infectious microorganisms and stroke.
  • To identify specific pathogens implicated in stroke etiology.
  • To inform preventive strategies for stroke treatment.

Main Methods:

  • Comprehensive literature search of major scientific databases (Web of Science, PubMed, Scopus) up to July 2018.
  • Inclusion of 16 relevant studies after rigorous quality assessment.
  • Independent data extraction by two reviewers to ensure accuracy.

Main Results:

  • Viruses including Hepatitis C virus (HCV), Hepatitis B virus (HBV), Human Immunodeficiency Virus (HIV), Herpes Simplex Virus (HSV), Varicella-Zoster Virus (VZV), and West Nile virus (WNV) are associated with ischemic stroke.
  • Bacterial (Streptococcus mutans), parasitic (Toxocara spp., Toxoplasma gondii), and fungal (Rhizopus sp.) infections also show reported links to stroke.
  • These findings highlight a diverse range of microorganisms potentially contributing to stroke development.

Conclusions:

  • The identified microorganisms play a significant role in stroke pathogenesis.
  • Preventive measures targeting these infections are essential for stroke management.
  • Further research into pathogen-specific stroke mechanisms can optimize treatment and prevention.

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