The invention provides for a method for identifying a biomarker in a fecal sample of a subject in need of such identification comprising: determining whether a fecal sample collected from a subject comprises a biomarker.
STATEMENT OF GOVERNMENTAL SUPPORT
 The invention was made with government support under Grant No. HSHQDC-07-X-00170 awarded by the U.S. Department of Homeland Security, and Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy. The government has certain rights in the invention.