V2EX nonvirulent

Nonvirulent

定义 Definition

nonvirulent(形容词):非毒性的;非致病性的;(病原体)毒力弱或不引起严重疾病的。常用于医学、微生物学语境,描述细菌、病毒或菌株不具有(或几乎不具有)致病性。

发音 Pronunciation

/nnvrjlnt/(英)
/nnvrjlnt/(美)

例句 Examples

The lab confirmed the strain was nonvirulent.
实验室证实该菌株是非致病性的。

Although the organism is usually nonvirulent in healthy adults, it can cause infection in people with weakened immune systems.
虽然这种微生物在健康成人中通常不致病,但在免疫系统较弱的人群中可能引发感染。

词源 Etymology

由前缀 non-(表示“非、不”)+ virulent(“有毒力的、致病的”)构成。virulent 源自拉丁语 virulentus,与 virus(“毒液、毒素”)相关,后来在医学中引申为“毒力强、致病性强”。因此 nonvirulent 字面意思就是“没有(强)毒力的”。

相关词 Related Words

文学与作品 Literary Works

  • Medical Microbiology(Murray, Rosenthal & Pfaller):在讨论菌株致病性、毒力与宿主免疫时常出现 nonvirulent 等表述。
  • Jawetz, Melnick & Adelberg’s Medical Microbiology:用于区分 virulent / nonvirulent(或相关概念如 avirulent)菌株与其临床意义。
  • Journal of Bacteriology(期刊论文):常在动物模型或体外实验中用 nonvirulent strain 描述不致病或毒力降低的菌株。
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