infectivity

Noun

countable uncountable

The ability of a pathogen to establish an infection

Japanese Meaning

感染性：病原体が感染を確立する能力 / 感染を引き起こす力

Researchers measured the infectivity of the new strain to determine how easily it could spread among people.

研究者たちは、新しい株の感染力を測定して、それが人々の間でどれほど容易に広がるかを判断した。

Sense（1）

The ability of a pathogen to establish an infection

The reputation for low infectivity of rubella was probably based on failure to recognise rashless cases.

infectivities

（ plural ）