In Covid19a Iron Fe++ cannot bind to heme- therefore heme cannot carry oxygen on the red blood cells. The lungs are not the problem. That is why this looks like high altitude sickness amd why HCQ/Azith work….
Think CovFeFe….
https://web.archive.org/web/20200405061401/https://medium.com/@agaiziunas/covid-19-had-us-all-fooled-but-now-we-might-have-finally-found-its-secret-91182386efcb?sfns=mo