As the most common inflicted pathogen causing AGE in children, several biomarkers have been developed and available commercially for the detection of rotavirus. The widely available biomarker platform utilized is the enzyme immunoassay (EIA) to screen for the rotavirus antigen
[1][2][4][6][10][13][17][85][86][87]. Amongst EIA kit used were Premier Rotaclone, Meridian Bioscience Inc., Cincinnati, OH, USA
[1][2][3][10][86][87], RIDASCREEN Rotavirus R Biopharm AG, Darmstadt, Germany
[6][86], and ProSpect Rotavirus Test, Oxoid Ltd., UK
[13][86]. Rotavirus antigens can also be detected by using enzyme-linked immunosorbent assay (ELISA)
[3][7][9][11][19][22] which includes ELISA kits such as Premier Rotaclone, Meridian Bioscience, Inc.
[3], Fecal Rotavirus Antigen ELISA Kit (EDI, CA, USA)
[7], ProSpecTM Rotavirus Microplate Assay, Oxoid
[11] and Rota Antigen Test Device, Cambridge
[19]. ELISA can also be used in the detection of rotavirus-specific IgM
[21]. Other methods in detection of rotavirus antigen were immunochromatography
[16][18] and latex agglutination
[14][85][88]. In addition, polyacrylamide gel electrophoresis (PAGE) was carried out to determine the electropherotype of rotavirus strains
[1][10][85]. Moreover, samples that were rotavirus positive for ELISA or EIA were sent for genotyping using reverse-transcription polymerase chain reaction (RT-PCR) to determine whether they belong to particular G/P genotypes
[2][7][10][11][16][21][89][90]. A multiplex real-time RT-PCR is an advanced approach for a high-throughput rotavirus genotype characterization for monitoring circulating rotavirus wild-type strains, which is more robust in identifying a novel strain
[91].