Structure of a novel exopolysaccharide produced by Burkholderia vietnamiensis, a cystic fibrosis opportunistic pathogen

► B. vietnamensis is an opportunistic pathogen for cystic fibrosis patients. ► B. vietnamensis exopolysaccharide (EPS) has a novel primary structure. ► The EPS is negatively charged, branched, acetylated and contains fucose. ► It is the only EPS produced by Burkholderia species to contain fucose.