Image in the public domain.
While popular swimming holes are commonly tested for bacteria, few are tested for protozoans. This public radio story discusses the problem of protozoan-caused illnesses for swimmers in rivers, lakes and ponds. The story distinguishes between different types of microbes, and is an excellent introduction to classification of microorganisms and/or classification in general.
Story Length: 4:41
© 2007 National Public Radio, Inc.
AIR DATE: 07/19/2007