Figure 2. Gel electrophoresis (2% agarose) of products of Trichinella multiplex PCR using samples from patients in Cambodia. Lanes 1–6, patients 1–6: samples were extracted from muscle tissue and show the 240-bp band typical for Trichinella papuae nematodes. Lane 7, patient 7: sample was extracted from muscle tissue and showed no band. Lanes 8–13, patients 8–13: samples were extracted from larvae and show the 240-bp band typical for T. papuae nematodes. Lane 14, negative control; lane 15, positive control (T. nativa showing the expected 127-bp band); lane M, molecular mass ladder.