When zones are in locked down state, let consider each zone as...

When zones are in locked down state, let consider each zone as an individual in the trial with noted profile of each.
Separate zones in two groups randomly.
Supply Viraleze to one group over a predetermined time period.
Collect data of Covid test results of all zones in each groups.
Make statistical inferences from comparative analysis of Covid test result data of zones in the two groups.
The general objectives of the exercise are:
Minimize number of Covid infection cases in each group
Given first group has a% vaccination rate but no Viraleze, while the second group has b% vaccination rate PLUS Viraleze.
When the trial period finishes, X% is proportion of Covid cases in first group and Y% is that of the second. The question is: Is X/a statistically significantly greater than Y/b while controlling for profile characteristics of group and assuming same Covid safety regulations everywhere.

That is a direction for trial of Viraleze to get a green light from TGA