We recognise there may be valid exemptions for this which are included for missing value reporting. For example, you may have collected a control sample from a collection instrument to sequence a negative control. In this case, the location of where you collected that control is not applicable to report as it was prepared in a lab but you could report the date in which you collected the control sample.
In this case, you would report:
- geo_loc_name (or /country) = missing: control sample
- collection date = 2020-05-25