serial interval
noun [ C ] medical specialized uk/ˈsɪə.ri.əl ˌɪn.tə.vəl/ us/ˈsɪr.i.əl ˌɪn.t̬ɚ.vəl/
（传染）间隔时间
the time between someone showing symptoms (= signs) of a disease and a person they infect showing symptoms of the disease
The serial interval for SARS was 7 days. SARS的传染间隔时间为7天。
The serial interval is one of the significant epidemiological measures that determine the spread of infectious disease. 传染间隔时间是流行病学上的一个重要参数，决定了疾病传播的速度。
- More examples
- The serial interval is the time between onsets of epidemiologically related cases.
- Recent estimates for the mean serial interval of COVID-19 range from 3.9 days to 4.0 days.
- In epidemiology, serial intervals are measured from when one infected person starts to show symptoms to when the next person infected becomes symptomatic.