CDC Admits That it has No Record Of An Unvaccinated Person Spreading Covid per FOIA Request

In response to attorney’s FOIA request, US CDC admits that it has no record of an unvaccinated person spreading COVID after recovering from COVID.

Conveyed this information is not collected…is it because the data is unobtainable because there is no data in existence or because there is data in existence but they don’t want to log it?