Viral encephalitis causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ogheneochuko Ajari, MB.BS, MS [2]; Priyamvada Singh, MBBS [3]; Anthony Gallo, B.S. [4]

Overview

Life-threatening causes of encephalitis include Balamuthia mandrillaris and Dengue fever. Common causes of encephalitis include infections with viruses such as arboviruss, herpes simplex, measles, mumps, polio, and rabies, which often lead to an autoimmune response. Less common causes of encephalitis include chronic autoimmune disorders and infections with bacteria, fungi, and parasites.

Causes

Life Threatening Causes

Life-threatening causes include:

• Balamuthia mandrillaris
• Dengue fever

If left untreated, these conditions may result in subsequent mortality or permanent disability within 24 hours.

Common Causes

• Arbovirus
• Herpes simplex virus
• Measles
• Mumps
• Polio
• Rabies

Causes by Organ System

Cardiovascular	Kawasaki disease
Chemical / poisoning	Arsenic, heavy metal toxicity, icaridin, organophosphate poisoning, poison hemlock, thallium
Dermatologic	Behcet disease, systemic lupus erythematosus, Vogt-Koyanagi-Harada syndrome
Drug Side Effect	Acyclovir, interferon, kynurenic acid, levodopa, methamphetamine, trimethobenzamide, zanamivir
Ear Nose Throat	Cholesteatoma, labyrinthitis, sinusitis
Endocrine	Myasthenia gravis
Environmental	No underlying causes
Gastroenterologic	Porphyria, Reye's syndrome
Genetic	Aicardi-Goutières syndrome, biotinidase deficiency, familial histiocytic reticulosis, hemophagocytic reticulosis, ornithine transcarbamylase deficiency, porphyria, Smith disease, Tourette syndrome
Hematologic	Familial histiocytic reticulosis, hemophagocytic reticulosis, lymphoproliferative syndrome, porphyria, x-linked agammaglobulinemia
Iatrogenic	No underlying causes
Infectious Disease	alkhurma virus, Borrelia burgdorferi, botulism, brome mosaic virus, California encephalitis virus, campylobacter fetus, capnocytophaga canimorsus, cardiovirus, cat scratch disease, cercopithecine herpesvirus 1, Chagas disease, chandipura virus, chicken pox, coccidioides spp, Colorado tick fever, congenital herpes simplex, congenital rubella syndrome, congenital syphilis, coxiella burnetii , coxsackievirus, Creutzfeldt-Jakob disease, cryptococcosis, cryptococcus neoformans, cysticercosis, cytomegalovirus, dengue fever, diphtheria, duvenhage virus, Eastern equine encephalitis virus, Ebstein-Barr virus, ehrlichia chaffeensis, ehrlichiosis, elizabethkingia meningoseptica, enterobacter sakazakii, enterovirus 70, enterovirus 71, enteroviruses, escherichia coli, feline viral rhinotracheitis, fetal parainfluenza virus type 3, flavivirus infections, flu, gnathostoma hispidum infection, gnathostoma spinigerum, gnathostoma spinigerum infection, gnathostomiasis, streptococcus, group B, haemophilus influenzae, hand-foot-and-mouth disease, hantavirosis , hemorrhagic fever, hendra virus, henipavirus, hepatitis E virus, herpes B virus, herpes simplex virus, histoplasma capsulatum, HIV, human granulocytotrophic ehrlichiosis, human herpesvirus 6, human monocytotrophic ehrlichiosis, immunosuppressive measles encephalitis, infectious canine hepatitis, influenza virus, Japanese encephalitis, JC virus, klebsiella, kumlinge virus encephalitis, kunjin virus, La Crosse encephalitis, labyrinthitis, lassa fever, listeria monocytogenes, listeriosis , louping ill, Lyme disease, lymphocytic choriomeningitis, lyssavirus, malaria, measles, mokola virus, mononucleosis , mumps , mumps virus, Murray Valley encephalitis virus, mycobacterium avium-intracellulare, mycobacterium tuberculosis, mycoplasma pneumoniae, naegleria fowleri, neisseria meningiditis, neonatal herpes, nipah virus, nocardia, pertussis, phlebovirus, pneumococcus, poliomyelitis, pontiac fever, Powassan virus, poxviridae disease, primary amoebic meningoencephalitis , primary encephalitis, progressive multifocal leukoencephalopathy, pseudomonas aeruginosa, psittacosis, Q fever, Queensland tick typhus, rabies, Rasmussen's encephalitis, rickettsiae, Rift Valley fever, rocio encephalitis, Rocky Mountain spotted fever, rubella, salmonella typhi, schistosoma japonicum, secondary encephalitis, shingles, Simian B virus infection, sinusitis, St. Louis encephalitis, staphylococcus aureus, streptococcus pneumoniae, streptococcus suis, subacute sclerosing panencephalitis, taenia solium, tick-borne encephalitis, togaviridae disease, TORCH syndrome, toxocariasis, toxoplasma gondii, toxoplasmosis, trench fever, treponema pallidum, trichinella, trichinosis, tropheryma whipplei, trypanosoma brucei gambiense, trypanosomiasis, typhoid fever, vaccinia, varicella zoster, varicella zoster virus, Venezuelan equine encephalitis, viral encephalitis, visna virus, West Nile fever, Western equine encephalitis, Western equine encephalitis virus, whooping cough, yersinia pestis
Musculoskeletal / Ortho	Metabolic myopathies, multiple sclerosis, skull fracture
Neurologic	Aicardi-Goutières syndrome, amyotrophic lateral sclerosis, aseptic meningitis, cauda equina syndrome, cerebral palsy, chronic inflammatory demyelinating polyneuropathy, conus medullaris, Creutzfeldt-Jakob disease, Lennox-Gastaut syndrome, multiple sclerosis, opsoclonus myoclonus syndrome, paraneoplastic neurologic disorders, poliomyelitis, progressive multifocal leukoencephalopathy, Rasmussen syndrome, Schilder's disease, St. Louis encephalitis, status epilepticus, subacute sclerosing panencephalitis, temporal lobe epilepsy, Tourette syndrome, tourettism, Vogt-Koyanagi-Harada syndrome
Nutritional / Metabolic	Biotinidase deficiency, metabolic myopathies, ornithine transcarbamylase deficiency
Obstetric/Gynecologic	TORCH syndrome
Oncologic	Paraneoplastic neurologic disorders
Opthalmologic	Vogt-Koyanagi-Harada syndrome
Overdose / Toxicity	Heavy metal toxicity, Reye's syndrome
Psychiatric	Progressive multifocal leukoencephalopathy, shaken baby syndrome, Tourette syndrome
Pulmonary	Flu, pertussis, whooping cough
Renal / Electrolyte	Systemic lupus erythematosus
Rheum / Immune / Allergy	Behcet disease, chronic inflammatory demyelinating polyneuropathy, multiple sclerosis, systemic lupus erythematosus, x-linked agammaglobulinemia
Sexual	No underlying causes
Trauma	Cauda equina syndrome, shaken baby syndrome, skull fracture
Urologic	No underlying causes
Miscellaneous	Porphyria

Causes in Alphabetical Order

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Gallery

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  This image reveals some of the cytoarchitectural features seen in a lymph node specimen that had been extracted from a patient suspected of a Hantavirus illness. From Public Health Image Library (PHIL).

References

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