burkholderia vietnamiensis burkholderia vietnamiensis burkholderia vietnamiensis is a species of bacteria. it can be found as an opportunistic pathogen in patients with cystic fibrosis or other immunocompromising illnesses. it differs from most burkholderia species in that it is often susceptible to aminoglycosides, but not polymyxin b. many isolates have been found to be catalase positive. b. vietnamiensis is able to fix n2 (nitrogen fixation). burkholderia vietnamiensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: burkholderia species: b. vietnamiensis binomial name burkholderia vietnamiensisgillis et al. 1995