
Keywords: توسعه واکسن; STY; Salmonella Typhi; STM; Salmonella Typhimurium; M cells; Microfold cells; CFU; colony forming units; LB; Luria Burtoni broth; DMEM; Dulbecco's Modified Eagle Medium; PBS; phosphate buffered saline; DTT; dithiothreitol; EDTA; ethylenediaminetetraacetic