“…Since control of schistosomiasis in high burden areas is primarily concerned with morbidity reduction through the use of regular anthelminthic chemotherapy (Fenwick et al, 2003;Utzinger and Keiser, 2004;WHO, 2002WHO, , 2004, interest has increased in better describing the public health burdens of schistosomiasis both at national and local levels (van der Werf et al, 2002(van der Werf et al, , 2003, as well as clearly demonstrating morbidity reversion post treatment (Boisier et al, 1998;Brooker et al, 2004;Lambertucci et al, 2000).…”