====== Brevibacterium casei ====== [[Brevibacterium]] casei (B. casei) is an aerobic, [[gram positive]] [[bacillus]] to which the aroma and colour of cheese is attributed, and until not long ago it was postulated to be a cutaneous saprophyte ((Gruner E, Pfyffer GE, von Graeventz A. Characterization of Brevibacterium spp. from clinical specimens. J Clin Microbiol. 1993;31:1408–12.)) with no pathogenic ability. There are few cases of infections caused by this genus and they are mainly reported as a pathogen in immunocompromised patients ((Bal ZS, Sen S, Karapinar DY, Aydemir S, Vardar F. The first reported catheterrelated Brevibacterium casei bloodstreaminfectionina child withacute leukemia and review of the literature. Braz J Infect Dis. 2015;19:213–5.)). catheter-related infections ((Bal ZS, Sen S, Karapinar DY, Aydemir S, Vardar F. The first reported catheterrelated Brevibacterium casei bloodstreaminfectionina child withacute leukemia and review of the literature. Braz J Infect Dis. 2015;19:213–5.)). ((Althaf MM, Abdelsalam MS, Alsunaid MS, Hussein MH. Brevibacterium casei isolated as a cause of relapsing peritonitis. BMJ Case Rep. 2014, http://dx.doi.org/10.1136/bcr-2014-203611.)) ---- [[Brevibacterium casei]] is the most commonly reported species of [[Brevibacterium]] isolated from clinical specimens ((Gruner, E., Steigerwalt, A. G., Hollis, D. G., Weyant, R. S., Weaver, R. E., Moss, C. W., Daneshvar, M., Brown, J. M. & Brenner, D. J. (1994). Human infections caused by Brevibacterium casei, formerly CDC groups B-1 and B-3. J Clin Microbiol 32, 1511–1518)). ===== Case reports ===== Dotchi et al. reported one case of [[vertebral osteomyelitis]] ((Doutchi M, Seng P, Menard A, Meddeb L, Adetchessi T, Fuentes S, Dufour H, Stein A. Changing trends in the epidemiology of vertebral osteomyelitis in Marseille, France. New Microbes New Infect. 2015 May 22;7:1-7. doi: 10.1016/j.nmni.2015.04.008. PMID: 26110060; PMCID: PMC4475833.)).