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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク HIV superinfection ： ウィキペディア英語版 HIV superinfection HIV superinfection (also called HIV reinfection) is a condition in which a person with established human immunodeficiency virus infection acquires a second strain of the virus. The second strain co-exists with the first and may cause more rapid disease progression or carry resistance to certain HIV medication. People with HIV risk superinfection by the same actions that would place a non-infected person at risk of acquiring HIV. These include sharing needles and forgoing condoms with HIV-positive sexual partners. For many years superinfection was thought to occur mainly in high-risk populations. Research from Uganda published in 2012 indicates that HIV superinfection among HIV-infected individuals within a general population remains unknown. Further research from The Journal of Infectious Diseases indicates that there have been 16 documented cases of superinfection since 2002. ==Immunology of HIV superinfection== It is unknown what aspects of the natural immune response to HIV may protect someone from superinfection, but it has been shown that cytotoxic lymphocyte responses do not seem to be protective. In addition, it has been demonstrated that superinfection can occur in individuals that demonstrate a robust anti-HIV antibody response. Interestingly, the anti-HIV antibody response broadens and strengthens in individuals post-superinfection. Taken with the finding that super-infection is common and occurs within and between HIV subtypes it has been suggested that the immune response elicited by primary infection may confer limited protection and raises concerns that HIV-vaccine strategies designed to replicate the natural anti-HIV immune response may have limited effectiveness in preventing new infections. However at the same time, HIV-infected individuals at high-risk for super-infection who do not become superinfected may also provide a very interesting avenue for new vaccine research. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HIV superinfection」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.