Medical Notes: Week of May 31, 2020

A look at the top medical headlines for the week of May 31, 2020, including: A newly developed smartphone app is remarkably effective at predicting if a person is infected with COVID-19. Then biomarkers for ALS or Lou Gehrig’s disease can be found in a person’s teeth in the first decade of life. Plus, a study shows that changing the way physical therapy is done can improve strength by an additional 30 percent. And finally, the labels on drinks for kids don’t help adults figure out which ones are real fruit juice and which are sugary, artificially flavored imitations.