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Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant within a cell, denoted as the lysogenic part of the viral life cycle. [1] A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which ...
Polio was eliminated from most parts of the world as part of a decadeslong effort by the World Health Organization and partners to wipe out the disease. Until it is gone from the planet, the virus ...
Viruses can, and do, turn our world upside down. But they also made us into what we are today. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...
The three respiratory viruses plus norovirus, a gastrointestinal virus, are the "main players in our winter virus pantheon," said Dr. Thomas Russo, who heads the infectious diseases department at ...
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). Acute disease
The eradication of infectious diseases is the reduction of the prevalence of an infectious disease in the global host population to zero. [ 1 ] Two infectious diseases have successfully been eradicated: smallpox in humans , and rinderpest in ruminants .
Due to resistance from the U.S. and Russia, in 2002 the World Health Assembly agreed to permit temporary retention of the virus stocks for specific research purposes. [6] Destroying existing stocks would reduce the risk involved with ongoing smallpox research; the stocks are not needed to respond to a smallpox outbreak. [ 7 ]
The original SARS. The world’s first confirmed coronavirus pandemic occurred in 2002, when SARS-CoV-1 was reported in China.It spread to more than two dozen countries in North and South America ...