Herpes zoster (shingles) - an acute viral disease of humans, the characteristic features of which are skin rash and nervous system symptoms.Because shingles is caused by the same virus that causes chickenpox, these two diseases are very similar to each other. Content
Shingles is caused by a virus of the family Herpesviridae - Herpesvirus Varicellae.Like all members of this family, the causative agent of herpes zoster unstable to the action of many environmental factors: for 10 minutes killed by heating, under ultraviolet rays, the processing disinfectants.Good storage at low temperatures, does not lose its properties even after repeated freezing.
Ill shingles can only persons previously undergone chickenpox in a typical or latent form.Outbreaks of disease were observed - are possible only sporadic cases of the disease.Mainly affec
causative agent of shingles - a contagious infection.If a person suffering from this disease, prokontaktiruet child previously without a history of chickenpox after a certain time (up to 21 days after exposure) he is likely to develop chickenpox.
virus spreads through airborne droplets.
Once people have been ill with chickenpox (usually in childhood), some of the virus persists in his body, persistiruya in nerve ganglia.Under the influence of adverse factors (nerve overload, hypothermia, decreased immune status as a result of acute and chronic diseases, such as HIV, AIDS, cancer, diseases, injuries) virus awakens and causes inflammation at the site of its localization and related areas of the skin.
just a few days before the onset of the disease the patient begins to bother weakness, headache, fatigue, chilliness, increased body temperature to subfebrile figures.Sometimes the above symptoms align and dyspepsia.In parallel, there is discomfort, and then burning, itching, pain in the future eruptions - in the course of the nerve trunks.
period marked clinical manifestations characterized by acute onset with fever to febrile (38-39 ° C) numbers and other signs of intoxication.At the same time the projection area of the affected nerve appear characteristic rash:
Typically, cutaneous manifestations are located unilaterally, often they are localized on the face along the branches of the trigeminal nerve in the intercostal spaces, in some cases - in the course of the nerves of the upper and lower extremities, as well as in the genital area.
Rashes are usually accompanied by an increase in regional lymph nodes and tenderness.
A few days after the rash background on which they are located, pale, blisters dry up in their place are formed crusts, which fall off in 3-4 weeks.
intoxication symptoms disappear with a reduction in body temperature.
The above clinic characteristic of the typical form of the disease, but sometimes a rash can wear and different nature:
As with herpes zoster affected and nervous tissue, patients complained of the following violations:
neuralgic pain may persist for months and years after therecovery.
After the first episode of shingles occurs remission, in rare cases, possible relapses.
Because herpes zoster has characteristic symptoms, the diagnosis is usually straightforward and laboratory confirmation was not performed.
Preventive measures are not carried out.
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