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Updated: May 8, 2026

Intracerebroventricular and Intravascular Injection of Viral Particles and Fluorescent Microbeads into the Neonatal Brain
Published on: July 24, 2016
Viral meningitis and encephalitis
1Center for Nursing Education, Florida Hospital, Orlando, FL 32803, USA. misti.tuppeny@flhosp.org
Abstract:
Meningitis is an inflammation of the meninges, whereas encephalitis is inflammation of the parenchymal brain tissue. The single distinguishing element between the 2 diagnoses is the altered state of consciousness, focal deficits, and seizures found in encephalitis. Consequently meningoencephalitis is a term used when both findings are present in the patient. Viral meningitis is not necessarily reported as it is often underdiagnosed, whereas encephalitis cases are on the increase in various areas of North America. Improved imaging and viral diagnostics, as well as enhanced neurocritical care management, have improved patient outcomes to date.
Insights
Meningitis involves inflammation of the meninges, while encephalitis affects brain tissue. Encephalitis is distinguished by altered consciousness, focal deficits, and seizures, with meningoencephalitis indicating both conditions. Cases of encephalitis are increasing, but improved diagnostics and care are enhancing patient outcomes.
Area of Science:
- Neurology
- Infectious Diseases
Background:
- Meningitis is inflammation of the meninges.
- Encephalitis is inflammation of the brain's parenchymal tissue.
- Meningoencephalitis involves inflammation of both the meninges and brain tissue.
Purpose of the Study:
- To differentiate between meningitis and encephalitis.
- To highlight the increasing incidence of encephalitis.
- To discuss advancements in diagnosis and patient care.
Main Methods:
- Clinical differentiation based on symptoms.
- Review of diagnostic advancements.
- Analysis of neurocritical care management improvements.
Main Results:
- Encephalitis is characterized by altered consciousness, focal deficits, and seizures.
- Viral meningitis is often underdiagnosed.
- Encephalitis cases are rising in North America.
- Improved diagnostics and neurocritical care have led to better patient outcomes.
Conclusions:
- Distinguishing between meningitis and encephalitis is crucial for appropriate management.
- Increased incidence of encephalitis warrants continued surveillance and research.
- Advances in neuroimaging, viral diagnostics, and neurocritical care significantly improve patient prognoses.
Related Concept Videos
Viral Meningitis
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
Arboviral Encephalitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

