The diagnostic methods currently used for screening are Fluorescent antibody techniques (FAT), enzyme-linked immunosorbent assays (ELISA) and polymerase chain reactions (PCR) and for these analyses, kidney tissue is most commonly used.
Þær aðferðir sem helst eru notaðar eru greining með mótefnum (ELISA og FAT) og kjarnsýrumögnun (PCR).