id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-280987-uhxk5b1b	Turtle, L.	Encephalitis, Viral	2014-05-01		.txt	text/plain	2266	120	33	Encephalitis is inflammation and swelling of the brain, often caused by an acute viral infection, or a paraor postinfectious phenomenon known as acute disseminated encephalomyelitis (ADEM). The term includes both viral infections of the brain with predominantly gray matter disease and acute disseminated encephalomyelitis (ADEM), an immune-mediated demyelinating disease. Clinically, acute viral encephalitis and ADEM usually manifest with fever, severe headache, neck stiffness, alterations of consciousness, focal neurological signs, and often seizures, especially in children. Once permissive host cells are infected in the subcutaneous tissue, the mucous membranes, or the hematopoietic system (particularly macrophages), viruses replicate usually locally before there is invasion of the central nervous system (CNS). Enteroviruses and mumps virus infect primarily meningeal and ependymal cells; therefore, they usually cause benign meningitis and only rarely are associated with encephalitis. On rare occasions when arboviruses infect the brain, they usually cause encephalitis with a significant death rate; thus, these viruses are not highly neuroinvasive but are highly neurotropic (and neuronotropic) and neurovirulent.	./cache/cord-280987-uhxk5b1b.txt	./txt/cord-280987-uhxk5b1b.txt