Use of 16s rRNA Gene Sequencing to Identify a Case of Pediococcus parvulus Bacteremia in a Patient with Metastatic Testicular Cancer

We describe the first case of a human Pediococcus parvulus ( P. parvulus) infection, involving bacteremia in a patient with metastatic testicular cancer. Since routine phenotypic bacterial identification systems do not include this organism in their databases, and 16S rRNA gene sequencing was successfully used for its identification. Early identification of P. parvulus as the cause of an infection is critical due to its intrinsic resistance to vancomycin.