[Role of enteroviruses in aseptic meningitis in Tunisia]

H Abdallah1, D Rezig, O Bahri

  • 1Laboratoire de Virologie Clinique, Institut Pasteur de Tunis.

La Tunisie Medicale
|February 28, 2004
PubMed

Insights

Viral meningitis outbreaks pose a public health risk. This study in Tunisia highlights the need for regular disease surveillance and advanced molecular diagnostics for sensitive viral meningitis detection.

Area of Science:

  • Virology
  • Epidemiology
  • Public Health

Context:

  • Viral meningitis, though often clinically favorable, can escalate into significant public health issues, particularly during outbreaks.
  • Tunisia faces challenges in managing viral meningitis, necessitating a comprehensive understanding of its incidence and diagnostic approaches.

Purpose:

  • To investigate the incidence and diagnostic strategies for viral meningitis in Tunisia.
  • To evaluate the effectiveness of cell culture and PCR in detecting enteroviruses in aseptic meningitis cases.

Summary:

  • A retrospective study over three years in Tunisia revealed a viral meningitis incidence of 2.4.
  • A prospective study analyzed 94 aseptic meningitis cases, employing cell culture and PCR for enterovirus detection in cerebrospinal fluid and stool samples.
  • The study underscores the value of molecular methods for enhanced diagnostic sensitivity in viral meningitis.

Impact:

  • This research provides a foundational understanding of viral meningitis in Tunisia.
  • It emphasizes the critical role of ongoing disease surveillance and the complementary utility of molecular diagnostics alongside traditional cell culture for accurate viral isolation and serotyping.

Related Concept Videos

Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
Arboviral Encephalitis01:25

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...