nocardioides hungaricus nocardioides hungaricus nocardioides hungaricus is a gram-positive and rod-shaped bacterium from the genus nocardioides which has been isolated from a drinking water supply system in budapest, hungary. nocardioides hungaricus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: propionibacteriales family: nocardioidaceae genus: nocardioides species: n. hungaricus binomial name nocardioides hungaricustóth et al. 2011 type strain 1ram5-12dsm 21673ncaim 2330ram5-12