Sorry, but if you really had a cure the WHO and all governments would be all over you asking for correspondence and interviews but since they aren't... nope. No need to show a "lab", it's very possible to show a bunch of people standing in a lab without doing anything.
sorry we're don't trust WHO again, because today WHO say if CORONA VIRUS Will not disappear from the earth..!!!
so we must surrender from COVID19 now..??or do you have plan to move in planet Mars??