Fox News Flash top headlines for December 29 Fox News Flash top headlines are here. Check out what’s clicking on Foxnews.com. Southern California hospitals, already overwhelmed by coronavirus patients, are now facing a new problem – a shortage of oxygen, according to a report. Officials say they're having trouble getting the necessary amount…
Dilated blood vessels in the lung may explain low oxygen levels in severe cases of COVID-19
A new pilot study from the Icahn School of Medicine at Mount Sinai suggests that COVID-19 is causing significant dilation of the blood vessels of the lung, specifically the capillaries. This vasodilation is contributing to the very low oxygen levels seen in COVID-19 respiratory failure and also helps explain why…