encephalitides


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to encephalitides: arbovirus, Arboviral encephalitides, arboviral encephalitis

encephalitis

[ensef′əlī′tis] pl. encephalitides
Etymology: Gk, enkephalos, brain, itis, inflammation
an inflammatory condition of the brain. The cause is usually an arbovirus infection transmitted by the bite of an infected mosquito, but it may be the result of lead or other poisoning or of hemorrhage. Certain protozoal infections such as toxoplasmosis can cause encephalitis in immunocompromised patients. Postinfectious encephalitis occurs as a complication of another infection, such as chickenpox, influenza, or measles, or after smallpox vaccination. The condition is characterized by headache, neck pain, fever, nausea, and vomiting. Neurological disturbances, including seizures, personality change, irritability, lethargy, paralysis, weakness, and coma, may occur. The outcome depends on the cause, the age and condition of the person, and the extent of inflammation. Severe inflammation with destruction of nerve tissue may result in a seizure disorder, loss of a special sense or other permanent neurological problem, or death. Usually the inflammation involves the spinal cord and brain; hence, in most cases a more accurate term is encephalomyelitis. Compare meningitis. See also equine encephalitis.
enlarge picture
Herpes encephalitis

encephalitides

plural of encephalitis.
References in periodicals archive ?
In 1960, the Institute included several laboratories and research departments from other research organizations and became Institute of Poliomyelitis and Viral Encephalitides.
Lukashev, Chumakov Institute of Poliomyelitis and Viral Encephalitides, Moscow Region, Russia; email: alexander_lukashev@hotmail.
Over the past decade, several viral encephalitides have emerged in Southeast Asia, including Nipah virus and enterovirus 71, and led to unexpected outbreaks of neurologic disease (4,16-23).
Bob began collaborative studies of the natural history, epidemiology, and pathogenesis of vectorborne viral encephalitides and began a career-long interest in rabies research; CDC developed an outstanding reputation in these areas, not the least because of Bob's contributions.
By retrospective analysis, this bovine astrovirus associated with neurologic symptoms (BoAstV-NeuroS1) was detected in the brains of 3 of 32 other cattle with encephalitides of undetermined etiology.
A diagnosis of encephalitis should be considered for patients with compatible symptoms, especially given the increased recognition of immune-mediated encephalitides for which treatment is available and effective if instigated early.
Other viral encephalitides also exhibit a tropism for certain neuroanatomic locations.
de Souza Luna); and Chumakov Institute of Poliomyelitis and Viral Encephalitides, Moscow, Russia (A.
Although the case described here may be rare, the etiology of many viral encephalitides in Uruguay remains unknown.