单词	retrovirus
释义	retrovirus noun ret·​ro·​vi·​rus ˈre-trō-ˌvī-rəs  : any of a family (Retroviridae) of single-stranded RNA viruses that produce reverse transcriptase by means of which DNA is produced using their RNA as a template and incorporated into the genome of infected cells, that are often tumorigenic, and that include the lentiviruses (such as the HIVs) and the causative agent of Rous sarcoma retroviral ˈre-trō-ˌvī-rəl  adjective Example Sentences Recent Examples on the Web This gene probably originates from a retrovirus for the proteins that cause fusion between the virus and the cell, says Dutch. Manasee Wagh, Popular Mechanics, 16 Aug. 2022 The line was also free of a specific virus that inserts itself into the pig genome (porcine endogenous retrovirus C, or PERV-C) and was raised in conditions that should limit pathogen exposure. John Timmer, Ars Technica, 24 June 2022 The following year, the laboratory run by the American researcher Dr. Robert Gallo at the National Institutes of Health, published four articles in one issue of Science confirming the link between a retrovirus and AIDS. New York Times, 10 Feb. 2022 Many doctors, though, suspected that the disease was triggered by a retrovirus, a kind of germ that slips into the host cell’s DNA and takes control, in a reversal of the way viruses typically work; hence the name retro. New York Times, 10 Feb. 2022 Creating a vaccine that targets HIV is challenging because the retrovirus become part of the human genome 72 hours after transmission. Elizabeth Gamillo, Smithsonian Magazine, 27 Aug. 2021 Although Ebola is not a retrovirus like HIV, Nath believes that years of research invested in studying HIV and the body’s response to the infection have jump-started our understanding of how Ebola affects the nervous system. Seema Yasmin, Scientific American, 29 Feb. 2016 The researchers analyzed in lab experiment how the serum samples neutralized lentiviruses -- a type of retrovirus -- equipped with the same mutations as the B.1.617 and B.1.618 coronavirus variants. Sheena Mckenzie, CNN, 17 May 2021 When the cells were returned to the patient through an intravenous infusion, the retrovirus did its trick with the new material — replicating quickly throughout the body, essentially curing the child of the disease. William A. Haseltine, Forbes, 12 May 2021 See More Word History Etymology New Latin First Known Use 1975, in the meaning defined above Medical Definition retrovirus noun ret·​ro·​vi·​rus ˈre-trō-ˌvī-rəs  : any of the family Retroviridae of single-stranded RNA viruses called also RNA tumor virus
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