A Case of Sepsis in Which Escherichia coli and Fastidiosipila sanguinis Were Isolated and Identified From a Blood Culture

We isolated <i>Fastidiosipila sanguinis</i> for the first time in Asia, alongside <i>Escherichia coli</i>, from blood culture specimens in a case of complicated urinary tract infection with sepsis. In our case, <i>F. sanguinis</i> took 96 hours to form colonies under anaerobic culture and showed sensitivity to ceftriaxone, administered for the urinary tract infection. The pathogenicity and clinical significance of <i>F. sanguinis</i>, as well as its impact on the host when coinfected with other pathogens, require further analysis through the accumulation of cases.