fig1
![Characterization of freshwater snail intermediate hosts of schistosomes in four communities from Osun State, Southwest Nigeria](https://image.oaes.cc/2f356ee7-395c-4682-b2f7-e62245d205fd/4977.fig.1.jpg)
Figure 1. Ethidium bromide-stained agarose gel showing infection status of 10 snails using the schistosoma DraI gene (121 base pair short tandem repeat). Lanes: 1: Quick-Load 100 bp DNA Ladder; 2-4: uninfected snails; 5-7: infected snails; 8 and 11: infection status unresolved; 10: uninfected snail; 12: DNA from adult S. haematobium (positive control); 13: negative control (no DNA).