noun
virus strain; viral strain
Technical term used in virology, epidemiology, and news reports to refer to a specific genetic variant of a virus.
新しいウイルス株に対するワクチンの効果が調べられている。
The effectiveness of the vaccine against the new virus strain is being investigated.
このウイルス株は感染力が非常に高い。
This viral strain is highly contagious.