Figure 1: Automated sequencing (Abi Prism 377) for the ureC region of H. pylori. Positive samples for H. pylori infection obtained from PCR in order to prove that the sequences being amplified did belong to the genetic sequence of a DNA segment of the urease-C area of H. pylori (enzymes HhaI and MboI). All DNA samples taken from the patients presented genetic sequences similar to the one of H. pylori, as described for the urease-C area of the Gene Bank (I Square 1).