Protozoan pathogens are widely distributed in the aquatic environment. Cryptosporidium and Giardia are the principal protozoan pathogens that are known to affect the acceptability of water supplies for public use within the United States. A sampling program for protozoan pathogens should be conducted over an extended period of time because of cyclical and seasonal variations in their concentrations in the environment. This report provides information on the equipment, sampling protocols, and laboratory method that are in standard use by U.S. Geological Survey (USGS) personnel for the collection of data on protozoan pathogens. Each chapter of the National Field Manual is published separately and revised periodically. Newly published and revised chapters will be announced on the USGS Home Page on the World Wide Web under 'New Publications of the U.S. Geological Survey.'
|Title||Chapter A7. Section 7.3. Protozoan Pathogens|
|Authors||Rebecca N. Bushon, Donna S. Francy|
|Publication Subtype||USGS Numbered Series|
|Series Title||Techniques of Water-Resources Investigations|
|Record Source||USGS Publications Warehouse|
|USGS Organization||U.S. Geological Survey|