That article is available on Wayback:
https://web.archive.org/web/20200405061346/https://medium.com/@agaiziunas/covid-19-had-us-all-fooled-but-now-we-might-have-finally-found-its-secret-91182386efcb
That article is available on Wayback:
https://web.archive.org/web/20200405061346/https://medium.com/@agaiziunas/covid-19-had-us-all-fooled-but-now-we-might-have-finally-found-its-secret-91182386efcb
SpO2
Saturation, peripheral, oxygen
SpO2 stands for peripheral capillary oxygen saturation, an estimate of the amount of oxygen in the blood.