S. Navarrete et al., CROSS-PROTECTION BETWEEN SPECIES OF THE SCHISTOSOMA-HAEMATOBIUM GROUPINDUCED BY VACCINATION WITH IRRADIATED PARASITES, Parasite immunology, 16(1), 1994, pp. 19-25
Mice vaccinated with irradiated cercaliae of Schistosoma haematobium,
S. bovis and S. margrebowiei showed good levels of resistance (38-62%)
against an homologous challenge, and varying degrees of resistance (1
9-46%), against challenges with closely related species. No protection
against S. mansoni was induced by vaccination with any of these speci
es. This restricted cross-protection reflects the close phylogenetic r
elationship between species of the S. haematobium group and indicates
that immunologically important epitopes are conserved within this spec
ies complex.