Shingles caused by varicella-zoster was regarded as rare disease, mostly related to childhood chickenpox. However, meningoencephalitis caused by varicella-zoster is increasingly recognized as a predominant cause of ME among immunocompetent adults in non-epidemic circumstances. Diagnosis of complications of varicella-zoster, particularly in cases where the disease reactivates after years or decades of latency, are difficult. A rash (shingles) can be present or absent. Symptoms vary, and there is significant overlap in symptoms with herpes-simplex symptoms. Although DNA analysis techniques such as polymerase chain reaction (PCR) can be used to look for DNA of herpesviruses in spinal fluid or blood, the results may
Center for Scientific and Technical Creativity of the Youth subsidiaries of Komsomol "raikoms". The Centers enjoyed various benefits, including no taxes and only 3% contribution to the all-union fund. The fortunes of quite a few "new Russians", notably Mikhail Khodorkovsky arose from these Centers. The Centers continue to exist in modern Russia. Similar establishments were the Foundations of Youth Initiatives (фонды молодёжных инициатив, ФМИ). Center for Scientific and Technical Creativity of the Youth Centers for Scientific and Technical Creativity of the Youth , NTTM) were established in the late Soviet Union during "perestroika" as enterprises whose goal was commercialization of science and technology. Other translations of the Russian term