Primary encephalitis

Two spring-summer encephalitis - a kind of tick-borne encephalitis, distributed mainly in the Western regions of the USSR. Occurs after a tick bite or use raw goat, rarely cow, milk of infected animals. The incubation period of 5 to 30 days, the disease begins with feelings of lethargy, weakness, increasing the temperature to 37,5 - of 38.5 degrees. Temperature is 5-7 days, then falls political. The second wave arising after 2-3-day interval lasts 7-9 days, accompanied by a sharp headache, dizziness, nausea, a feeling of instability. Face hyperemic, may cause rashes, is determined by the light meningeal syndrome. In the blood, lakopenia. In the cerebrospinal fluid moderate lymphocytosis. For in most cases favourable.
Lethargic encephalitis (epidemic encephalitis, Economo) - occurs in the form of outbreaks and sporadic cases. The cause has not been identified, but it is expected viral nature of the disease due to the presence of epidemic outbreaks. Maximum diseases falls on winter and spring months. Begins abruptly or gradually with muscle aches, headache, low grade temperature. There are sleep disorders of drowsiness or long insomnia, diplopia, ptosis, strabismus, violation of convergence, nystagmus (see). Frequent vegetative disturbances - the oiliness of the skin, excessive secretion of saliva, thirst, constant feeling of hunger. Children can be hyperkinesia (see).
The disease may be in erased form. During the epidemic mortality reaches 20-30%. In some cases, after the acute period of developing the syndrome parkinsonizma (see) - stiffness, limitee face, slow, poorly modulated speech, trembling of the limbs. Gradually stiffness, shakiness grow, leading patients to full disability.
Mosquito encephalitis differs acute onset, high fever (39-40 degrees), symptoms of substance and of the brain and spinal cord - anonymoustemplate. Often there are delusions, hallucinations, burning, or loss of consciousness. Frequent seizures. High liquor pressure, moderate lymphocytosis.
Enterovirus meningoencephalitis (Coxsackie and ECHO) - is caused by intestinal viruses group; the disease occurs in summer and autumn, affecting mainly children 2-14 years old, but is observed in adults. Characterized by high contagiousness, periodic outbreak. The incubation period is 2 to 10 days. The beginning of a sharp rise in temperature, headache, vomiting. In some cases, severe pain in the muscles, possible spotty rash resembling measles and rubella. With a 2-3-day illness develops meningeal syndrome, reveals the defeat of craniocerebral nerves, convulsions. As cerebrospinal fluid showed increase cells to 1000-10 000 1 mm3 with a predominance of lymphocytes (picture serous meningitis), with a moderate increase in protein content. During benign, the residual phenomena are not usually observed. Normalization of temperature occurs in 7-10-day and spinal fluid at 20 - 25 day of the disease.