Xirmadani waa immunoassay degdeg ah oo chromatographic ah oo loogu talagalay ogaanshaha tayada leh ee unugyada difaaca jirka ee IgM ee ka hortagga fayraska Cagaarshowga (HAV) ee serum/plasma aadanaha si ay uga caawiso ogaanshaha Fayraska Cagaarshowga A.