Fig. 5From: Relative compatibility of Schistosoma mansoni with Biomphalaria sudanica and B. pfeifferi from Kenya as assessed by PCR amplification of the S. mansoni ND5 gene in conjunction with traditional methodsSummary of infection status for B. sudanica and B. pfeifferi at various times post-exposure. The number of snails of each species examined for each of the stipulated time intervals is shown in the box below the corresponding pie chart. Blue = negative snails; pink = PCR positive snails; red = PCR positive, dissection positive; green = PCR positive, dissection negative snails; purple = snails shedding S. mansoni at the 40th dpeBack to article page