<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=799546403794687&amp;ev=PageView&amp;noscript=1">

Damage done by the coronavirus to the membranes of red blood cells that carry oxygen may explain why many COVID-19 patients have alarmingly low oxygen levels, according to new research. Specifically, the virus attacks the membranes' most abundant protein, called band 3, said senior researcher Angelo D'Alessandro of the University of Colorado Anschutz Medical Campus.