Disease the time between infection and the appearance of symptoms. The latency period is the time between infection and the ability of the disease to spread to another person, which may precede, follow, or be simultaneous with the appearance of symptoms. Some viruses also exhibit a dormant phase, called viral latency, in which the virus hides in the body in an inactive state. For example, varicella zoster virus causes chickenpox in the acute phase; after recovery from chickenpox, the virus may remain dormant in nerve cells for many years, and later cause herpes zoster (shingles). Diseases may be classified by cause,
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