objective: helicobacter pylori is a widely distributed gram negative bacterium that infects the human stomach and duodenum. some antibiotic regimens are subjected to cure the infection but the cost of drugs, poor patient compliance and emerging of antibiotic-resistant strains are limiting the usefulness of these antibiotic therapies. therefore, interest in developing a h. pylori vaccine is grow...

brucellosis is a zoonotic disease transmitted to humans either from animals or from their products.although brucellosis can be found worldwide, the mediterranean basin, south and central america, easterneurope, asia, africa, the caribbean, and the middle east have currently been listed as high-risk regions. thegenus brucella is classified in at least nine species. brucella melitensis is the glo...

To study the phylogenetic relationships of the genus Gymnothorax (moray eels) distributed in South China Sea, polymerase chain reactions were performed, and the amplification products were sequenced by cloning into the PMD18T-vector (TaKaRa). The entire gene sequences encoding cytochrome b (1140 bp) for 16 Gymnothorax (G. flavimarginatus, G. meleagris, G. undulates, G. reticularis, G. reevesi, ...