Specific diagnosis of<unk>  is routinely made by polymerase chain reaction (PCR) assays or quantitative PCR assays, which give results within a few hours. These assays are very sensitive and can detect as few as 10 virus particles. Tests such as ELISA that use antibodies against a mixture of<unk>  strains are available commercially, but lack specificity and sensitivity.
Norovirus
Rotavirus
Campylobacter jejuni
Enterotoxigenic Escherichia coli
Giardia
Yersinia enterocolitica
Salmonella
Dhori virus