Health24.com | How do some Covid-19 patients not realise they have dangerously low oxygen levels?

Hypoxia (or low levels of blood oxygen levels) are frequently reported in Covid-19 patients. But some don’t realise this, baffling experts.

from Health24 News https://www.health24.com/Medical/Infectious-diseases/Coronavirus/how-do-some-covid-19-patients-not-realise-they-have-dangerously-low-oxygen-levels-20200511-2