Test

## [1] "SafetyWindowConst"

To protect the welfare of individual participants, the rate of enrolment within each cohort will be restricted.

For all cohorts:

• The gap between consecutive enrolments should always be at least 7 days.

Before the next cohort can open, all participants in the current cohort must have been followed up for at least 7 days and at least one participant must have been followed up for at least 14 days.