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Herpes simplex encephalitis (HSE), or simply herpes encephalitis, is encephalitis due to herpes simplex virus. It is estimated to affect at least 1 in 500,000 individuals per year, [ 1 ] and some studies suggest an incidence rate of 5.9 cases per 100,000 live births.
In 2015, encephalitis was estimated to have affected 4.3 million people and resulted in 150,000 deaths worldwide. [4] [3] Herpes simplex encephalitis has an incidence of 2–4 per million of the population per year. [36]
SEM herpes has the best prognosis of the three, however if left untreated it may progress to disseminated or CNS herpes with attendant increases in mortality and morbidity. [ citation needed ] Death from neonatal HSV disease in the U.S. is currently decreasing; the current death rate is about 25%, down from as high as 85% in untreated cases ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
If treated, most individuals recover from viral encephalitis without long-term problems related to the illness. Mortality rates vary for those who do not receive treatment, for example being about 70% for herpes encephalitis [13] but low for the La Crosse virus. Individuals who remain symptomatic after initial infection may have difficulty ...
Acute necrotizing encephalopathy (ANE) or sometimes necrotizing encephalitis or infection-induced acute encephalopathy (IIAE) is a rare type of brain disease (encephalopathy) that occurs following a viral infection. [4] Most commonly, it develops secondary to infection with influenza A, influenza B, and the human herpes virus 6. ANE can be ...
Worldwide, the rate of infection with herpes simplex virus—counting both HSV-1 and HSV-2—is around 90%. [1] Although many people infected with HSV develop labial or genital lesions ( herpes simplex ), the majority are either undiagnosed or display no physical symptoms—individuals with no symptoms are described as asymptomatic or as having ...
Epstein Barr Virus encephalitis; Herpes simplex encephalitis; Influenza encephalitis; Japanese encephalitis; La Crosse encephalitis; Lymphocytic choriomeningitis by Arenavirus; Measles encephalitis; Mumps; Nipah virus encephalitis [1] Poliomyelitis; Progressive rubella panencephalitis, a late complication of congenital rubella syndrome; St ...