Current data are insufficient to define the incidence of adverse events in primary vaccinees as opposed to individuals re-vaccinated after a long interval.

根据现有的资料还不足以确定初免者以及与之相对的经过很长一段间隔时间后再次接种疫苗者的不良反应发生率。

youdao

Interval: Calculate the amount of time between events or transactions.

时间间隔：计算事件或者事务之间的时间总量。

youdao

This shows that the effective time interval of earthquake events is only about 1000 years, and the maximum cycle of seismic activity that we are allowed to infer does not exceed 500 years.

说明迄今的地震事件的有效统计间隔仅仅1000年左右，允许我们能够推断出的最大地震活动周期不会超过500年。

youdao

Both teams left the pitch to a frustrated chorus of jeering at the interval, with Chelsea coach Ray Wilkins clearly angry at the events of the first half.

BBC: Samuel Eto'o