Varicella vaccine from a child with natural varicella, introduced into human embryonic lung cell cultures, adapted to and propagated in embryonic guinea pig cell cultures, and finally propagated in human diploid cell cultures. Japan was among the first countries to vaccinate for chickenpox. The vaccine was first licensed in the United States in 1995. Routine vaccination against varicella zoster virus is also performed in the United States, and the incidence of chickenpox has been dramatically reduced there (from 4 million cases per year in the pre-vaccine era to approximately 400,000 cases per year as of 2005). In Europe most countries do not
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