leeches

On this week's show, we'll hear about a recent breakthrough in soybean science, and learn about the use of medicinal leeches in one Missouri hospital.

A large jar sits inside a white refrigerator in the pharmacy at Mercy Springfield.  Inside that jar are what are classified as medical devices by the US Food and Drug Administration:  about 20 medical grade leeches that are kept in case they’re needed, which is usually once or twice a year.