One of the reasons COVID-19 presents such a significant global medical challenge is that there are few effective therapies for it so far. As cases fill hospital beds across many parts of the country, doctors and scientists are coming up…

Stream your PBS favorites with the PBS app: Find more from PBS NewsHour at Subscribe to our YouTube channel: Follow us: Facebook: Twitter: Instagram: Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: Newsletters:

Read the Transcript: http://to.pbs.org/cwRpyt In one of America’s fastest-growing but least-regulated industries, consumers face a dizzying array of herbal treatment options. But studies about the effectiveness of these products are inconclusive, and the ingredients listed in labels are sometimes misleading.…