noun
basic reproduction number; R0
Epidemiological term: the average number of secondary infections produced by one infected individual in a fully susceptible population. Often abbreviated as R0.
新型コロナウイルスの基本再生産数は2～3と推定された。
The basic reproduction number of the novel coronavirus was estimated to be 2 to 3.
基本再生産数が1を超えると感染が拡大する。
If the basic reproduction number exceeds 1, the infection spreads.