虽然首次于1950年代描述,但是直到1969年才确定引起该病的病毒。
Though first described in the 1950s, the virus causing the disease was not identified until 1969.
南非国家传染病研究所和美国疾控中心继续进行分析,以便较全面地描述此病毒。
Analysis continues at the NICD and CDC in order to characterize this virus more fully.
乔布斯桑,请问您是否会将苹果描述成细菌或者病毒?
Mr. Jobs, would you describe Apple as a bacteria or a virus?
These tropisms, or affinities of viruses for certain cells, are well mapped out now.
如今病毒对特定细胞的趋向性和亲合力,已经很好地进行了描述
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