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 school Technical school In the United States, a technical school is a two-year college that covers fields such as business, finance, hospitality, tourism, construction, engineering, visual arts, information technology and community work. The Association for Career and Technical Education is the largest U.S. education association dedicated to promoting career and technical education for youth and adults. Technical school is also the term used in the United States Armed Forces for the job specific training given immediately after recruit training. Though similar to the training provided by a two-year college, the training is much more concise, eschewing any coursework outside the minimum