AUTHOR=Appel Tobias M. , Quijano-Martínez Natalia , De La Cadena Elsa , Mojica María F. , Villegas María Virginia 

TITLE=Microbiological and Clinical Aspects of Raoultella spp.

JOURNAL=Frontiers in Public Health

VOLUME=9

YEAR=2021

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2021.686789

DOI=10.3389/fpubh.2021.686789

ISSN=2296-2565

ABSTRACT=<p>The genus <italic>Raoultella</italic> was established in 2001. Species of <italic>Raoultella</italic> and <italic>Klebsiella</italic> share many ecological, biochemical, clinical, and microbiological features. Given the shortcomings of available technology for species identification in the clinical microbiology laboratory, are practically indistinguishable. Since the late 2000s there has been an increase in case reports of human <italic>Raoultella</italic> infections. Therefore, several authors are postulating that <italic>Raoultella</italic> spp. are rare and/or emerging pathogens.</p><p><bold>Conclusions:</bold><italic>Raoultella</italic> spp. are very similar to <italic>Klebsiella spp</italic>. The epidemiology and the clinical relevance of the human <italic>Raoultella</italic> spp. infections is uncertain and further studies are required. The previous difficulties in the identification of <italic>Raoultella</italic> spp. and the introduction of more precise identification techniques may explain the recent increase in the number of case reports. <italic>Raoultella</italic> spp. might be rather underdiagnosed than rare or emerging pathogens.</p>