Staining revealed immunolocalization of Em-TSP1 and Em-TSP3 at the surface (germinal layer/tegument) of both forms of E. multilocularis larva (cyst and protoscolex) (Figure 1A,B) and both of the antigens were also detected on the tegument of the adult worms (Figure 1C). Here, THBS3 is linked to cyst.