pylori</i> infection in vitro.<h4>Methodology</h4>Human cell lines (AGS, GES-1, HeLa, HEK293T) were used alongside bicistronic and monocistronic (Firefly/Renilla luciferases) reporter assays to assess short and long variants of the Survivin 5'UTR and HIV-1 internal ribosome entry site (IRES) sequences. Here, BIRC5 is linked to infection.