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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 ...
The case-fatality rate of untreated encephalitis syndrome is 56–75%, [5] but early treatment of raised intracranial pressure reduces fatality rate. Of 27 children surviving encephalitis syndrome 24 completely recovered within 3 months, only two developed late onset refractory epilepsy and four continued to have hemiplegia after 8 months. [7]
Viral encephalitis can occur either as a direct effect of an acute infection, or as one of the sequelae of a latent infection. The majority of viral cases of encephalitis have an unknown cause; however, the most common identifiable cause of viral encephalitis is from herpes simplex infection. [ 12 ]
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0.5-2% Depends largely on the age group of the person, earlier strains of COVID-19 had higher CFR of around 2%. [53] [54] [55] Lassa fever: Viral Treated ≈1% 15% in hospitalized patients; higher in some epidemics. [56] Mumps encephalitis: Viral Unvaccinated ≈1% [17]: 431 Pertussis (whooping cough), children in developing countries Bacterial
Prevention is typically by avoiding the use of aspirin in children. [1] When aspirin was withdrawn for use in children in the US and UK in the 1980s, a decrease of more than 90% in rates of Reye syndrome was observed. [2] Early diagnosis of the syndrome improves outcomes. [1] Treatment is supportive; [1] mannitol may be used to help with the ...
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. [ 2 ] About 90% of cases of herpes encephalitis are caused by herpes simplex virus-1 (HSV-1), the same virus that causes cold sores .
The incidence of viral encephalitis is about 3.5 to 7.5 per 100,000 people, with the highest incidence among the young and the elderly. Viral encephalitis caused by some viruses, such as the measles virus and the mumps virus, has become less common due to widespread vaccination.