in.tra.cel.l.u.la’ris. N.L. fem. n.Lawsonia, in honor of G. H. K. Lawson, the discoverer of the bacterium; L. adv.intra, within; L. fem. n.cellula, cell; N.L. masc./fem. adj.intracellularis, within small cells, referring to the presence of the organism within enterocytes
Nomenclatural type of the genus Lawsonia McOrist et al. 1995.Publication:
McOrist S, Gebhart CJ, Boid R, Barns SM. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. Int J Syst Bacteriol 1995; 45:820-825.
Lawsonia intracellularis was previously known as "Ileal symbiont intracellularis" Gebhart et al. 1993, or as "Candidatus intracellularis" Murray and Stackebrandt 1995.Publication:
Murray RG, Stackebrandt E. Taxonomic note: implementation of the provisional status Candidatus for incompletely described procaryotes. Int J Syst Bacteriol 1995; 45:186-187.
The full TRBA 466 classification is: risk group = 2, note = "t".