Noroviruses bind to secreted blood group antigens on the mucosa of the digestive tract. Because non-secretors do not express these antigens, they exhibit decreased susceptibility to most strains of the disease.<unk>  can be determined through genotyping or through serologic methods. In the serologic method, the person's saliva is boiled, then added to reagents containing antibodies against the A, B, and H antigens. Red blood cells expressing these antigens are then added to the saliva-reagent mixtures. If the person is a<unk> , the antibodies will bind to the antigens in their saliva rather than the red blood cells, and will not cause red blood cells to agglutinate.<unk>  testing was historically used in forensic science, but this has been made obsolete by advances in DNA testing.
Secretor status
Blood type
History of pathology
SAMPLE history
Indian blood group system
Junior blood group system
Hh blood group
Lan blood group system