the w.h.o. under the global vaccine. and some of the manufacturers, those have materialies. so the supply challenge. basically a supply challenge. that's what it is. >> is it not as simple as saying, wealthier nations are hoarding, is it more complicated when you talk about india not only through? that has had a huge impact, that. the covid supply itself has been affected by multiple challenges. and the biggest of them all is actually rich countries that are holding more than 80, any% of all the projects doses that are men to be manufactured. and they're holding them through