Infection intensity and specific antibody response in schistosomiasis

The antibody titres in hamsters that were experimentally infected and in humans that were naturally infected with S. mansoni or S. haematobium were determined with the IFAT. The infection intensity was measured directly in the hamsters by counting the worms collected after perfusion and indirectly in humans by counting the eggs in faeces or in urine. In general antibody titre reflected infection intensity.