Medical Notes: Week of November 22, 2020

A look at the top medical headlines for the week of November 22, 2020 including: Scientists say they’ve come up with a simple skin test that can accurately diagnose Parkinson’s. Then, a new Covid-19 test could be coming that requires you to simply gargle with a sterile saltwater solution. Then, a study shows that a single dose of sub-anesthetic ketamine can treat lazy eye. And finally… a study that shows how smog generates plastic trash.