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Related Concept Videos

Arboviral Encephalitis01:25

Arboviral Encephalitis

2
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...
2

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Related Experiment Video

Updated: Mar 21, 2026

Establishing Mouse Models for Zika Virus-induced Neurological Disorders Using Intracerebral Injection Strategies: Embryonic, Neonatal, and Adult
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Establishing Mouse Models for Zika Virus-induced Neurological Disorders Using Intracerebral Injection Strategies: Embryonic, Neonatal, and Adult

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[Zika, a neurotropic virus?].

Luis Del Carpio-Orantes1

  • 1Departamento de Medicina Interna, Hospital General de Zona 71, Instituto Mexicano del Seguro Social, Veracruz, Veracruz, México. neurona23@hotmail.com.

Revista Medica Del Instituto Mexicano Del Seguro Social
|May 20, 2016
PubMed
Summary

Zika virus shows a strong affinity for brain tissue, leading to neurological conditions like Guillain-Barré syndrome and microcephaly. Evidence suggests a link between Zika virus infection and these severe neurological impacts.

Keywords:
Arbovirus infectionsArbovirusesEpidemiological surveillanceEpidemiology

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Area of Science:

  • Neuroscience
  • Virology
  • Public Health

Background:

  • Zika virus (ZIKV) has emerged as a significant public health concern, particularly in the Americas.
  • Neurotropic viruses, including both RNA and DNA viruses, are known to affect the central nervous system.
  • Previous viral outbreaks, such as chikungunya, have also impacted the Americas, providing a comparative context.

Purpose of the Study:

  • To discuss the neurotropism potential of Zika virus.
  • To compare ZIKV's neurotropic capabilities with known neurotropic viruses.
  • To investigate the association between ZIKV and neurological manifestations, including microcephaly.

Main Methods:

  • Comparative analysis of ZIKV with other neurotropic viruses (RNA and DNA).
  • Review of clinical data on neurological conditions associated with ZIKV outbreaks.
  • Pathological examination of a stillborn subject with suspected ZIKV-related microcephaly, including identification of viral material.

Main Results:

  • Zika virus demonstrates a high affinity for brain tissue compared to other emerging viruses.
  • A significant increase in acute neurological conditions, such as Guillain-Barré syndrome, has been observed.
  • Autopsy findings in a stillborn subject revealed extensive brain tissue alterations, viral material, and live virus in the fetoplacental complex, impacting various brain structures and the spinal cord.

Conclusions:

  • Current evidence strongly supports a relationship between Zika virus infection and neurological conditions, particularly microcephaly.
  • Zika virus exhibits significant neurotropism, affecting both white and gray matter, basal ganglia, corpus callosum, ventricles, and spinal cord.
  • Further scientific research is needed to definitively establish a cause-effect relationship between ZIKV and observed neurological sequelae.