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DSA labels definitive tegumental cells and the gut of the parasite. Adult worms were labelled by fluorescence in situ hybridisation with tegument markers (calpain, gtp-4, annexin, and npp-5), after which they were incubated with fluorescent DSA lectin and imaged via confocal microscopy. Dorsal view of a male worm, showing the bifurcated intestinal ceca, right above the ventral sucker.
