Doctors also screen for cancer by looking for blood in stool samples.
The most commonly used screening test for colon cancer checks for traces of blood in stool samples.
A special feature of the test is that it detects minute amounts of human DNA in stool samples, distinguishing it from the copious bacterial DNA.
One of the tests, developed by Exact Sciences of Madison, Wis., looks in stool samples for the presence of four altered genes that are diagnostic of colon cancer.
But in the real world, the tumor DNA must be detected in stool samples, even though almost all the DNA comes from the bacteria of the gut.
EAEC was sought in stool samples in enrolled subjects by HEp-2 cell assay.
Recent publications also reported the detection of HBoV in stool samples of gastroenteritis patients.
Detection of the human gene in stool samples was enhanced by hybrid selection of the K-Ras sequences, polymerase chain reaction, and single-strand conformation polymorphism.
Additionally, 12 (25%) of the 48 randomized selected participants who received HA-L tested positive for HA antigen in stool samples.
However, astrovirus is neither routinely screened for in stool samples, nor in environmental samples, and data on the health impact of waterborne astrovirus are lacking.
Moreover, coronavirus-like particles have been seen by electron microscope in stools, and SARS-HCoV has been isolated from intestinal tissue and detected in stool samples.
