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,
Technical Aesthetics Soviet counterparts. It also rehabilitated the memory of movements such as Russian constructivism, which had been condemned by Stalin in favour of Socialist realism, even if they set the foundations of Russian design in the early 1920s. According to art historian Alexandra Chiriac, the term "technical aesthetics" was invented in Russia in the 1960s to speak about the field of design, which wasn't really developed in the country at the time, and which was promoted through the VNIITE research institute and the Technical Aesthetics magazine. Technical Aesthetics Technical Aesthetics (Техническая эстетика in Russian) was a monthly magazine produced in the