Related Experiment Video
Updated: Jul 14, 2026

Intracerebroventricular and Intravascular Injection of Viral Particles and Fluorescent Microbeads into the Neonatal Brain
Published on: July 24, 2016
[Epidemiology of enterovirus associated with neurologic diseases]
Daniel M Cisterna1, Gustavo Palacios, Karina Rivero
1Servicio de Neurovirosis, Instituto Nacional de Enfermedades Infecciosas ANLIS Dr. Carlos G. Malbrán, Buenos Aires. dcisterna@anlis.gov.ar
Abstract:
This report describes the results of human enterovirus (HEV) detection and characterization using cell culture, polymerase chain reaction and molecular typing in 2167 samples obtained from acute flaccid paralysis, aseptic meningitis and acute encephalitis patients, from 1991 to 1998 in Argentina. HEV were isolated in 130 out of 666 cases (19.5%) and 36 out of 666 (5.4%). HEV RNA was detected in 28.8% (231/801) and 3.0% (21/700) of the patients with meningitis and encephalitis, respectively. Children with ages ranging from 1 to 9 years accounted for 75.3% of the meningitis cases and from 1 to 4 years for 58% of acute flaccid paralysis patients. Echovirus 4 (E4), E9, E30 and E17 were identified from meningitis outbreaks. Coxsackievirus A2 (CAV2), CBV2, CBV5, E7, E11, E19, E24, E29 and enterovirus 71 were recovered only from sporadic cases. Three different serotypes were identified in encephalitis patients: E4, E7 and E24. A total of 28 different serotypes of non-polio enteroviruses were detected from acute flaccid paralysis cases. The information here presented contributes to improving our knowledge about enteroviruses epidemiology in Argentina and their relationship with different neurological diseases. This study provides valuable data that could be useful to further research.
Insights
Human enteroviruses (HEV) were detected in Argentinian patients with neurological diseases between 1991-1998. Echoviruses and Coxsackieviruses were common, particularly in children with meningitis and acute flaccid paralysis.
Area of Science:
- Virology
- Epidemiology
- Neurology
Context:
- Human enteroviruses (HEV) are a significant cause of neurological diseases globally.
- Enterovirus surveillance is crucial for understanding disease burden and informing public health strategies.
- Argentina has a history of enterovirus circulation, necessitating ongoing epidemiological studies.
Purpose:
- To detect and characterize human enteroviruses (HEV) in patients with acute flaccid paralysis, aseptic meningitis, and acute encephalitis in Argentina.
- To determine the prevalence of HEV in different neurological conditions and age groups.
- To identify specific HEV serotypes associated with these diseases.
Summary:
- HEV detection and characterization were performed using cell culture, PCR, and molecular typing on 2167 samples from 1991-1998.
- HEV were isolated in 19.5% of cases; HEV RNA was detected in 28.8% of meningitis and 3.0% of encephalitis patients.
- Children aged 1-9 years were most affected by meningitis, and 1-4 years by acute flaccid paralysis. Various Echovirus and Coxsackievirus serotypes were identified, with 28 serotypes found in acute flaccid paralysis cases.
Impact:
- This study enhances the understanding of enterovirus epidemiology in Argentina and its link to neurological diseases.
- The findings provide valuable data for future research and public health interventions.
- Identified HEV serotypes can inform vaccine development and diagnostic strategies.
Related Concept Videos
Poliomyelitis
Viral Meningitis
Encephalitis l: Introduction
Arboviral Encephalitis
Encephalitis ll: Pathophysiology
Bacterial Meningitis II: Pathophysiology
