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
National Technical Institute for the Deaf community are preserved in the RIT/NTID Deaf Studies Archive, which is housed on campus in the RIT Archive Collections at The Wallace Center. National Technical Institute for the Deaf The National Technical Institute for the Deaf (NTID) is the first and largest technological college in the world for students who are deaf or hard of hearing. As one of nine colleges within the Rochester Institute of Technology (RIT) in Rochester, New York, NTID provides academic programs, access, ASL in-class interpreters and support services—including on-site audiological, speech-language, and cochlear implant support. As of fall quarter 2012, NTID encompasses just under 10%