Sheng Long,1 Peijuan Tang,1 Pengwen Ouyang,1 Xiangjian Liao,2 Liangyi Xie1 

1Department of Clinical Laboratory, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People’s Republic of China; 2Department of Clinical Laboratory, Changsha Hospital of Traditional Chinese Medicine (Changsha Eighth Hospital), Changsha, Hunan, People’s Republic of China

Correspondence: Liangyi Xie, Department of Clinical Laboratory, Hunan Province People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People’s Republic of China, Email lyxie78@hunnu.edu.cn

Abstract: This case report describes the case of a female infant hospitalized for severe pneumonia. During the treatment process, various antibiotics are used to treat and prevent further infection. The child had a weak physical condition, combined with neuroblastoma, paraneoplastic syndrome, and low immune function, leading to Tsukamurella tyrosinosolvens infection. The treatment was eventually abandoned owing to poor prognosis. This study aims to through the medium, dyeing, electron microscope observation, 16s rRNA and high-throughput sequencing investigated the morphological characteristics, staining properties, electron microscope morphology, antibiotic resistance, and genomic characteristics of Tsukamurella tyrosinosolvens. The aim of the study is to provide data reference for clinical laboratory staff in bacteria identification research, and to provide relevant help for clinicians in diagnosis and treatment.

Keywords: Tsukamurella tyrosinosolvens, opportunistic pathogen, MALDI-TOF MS, 16S rRNA, genomics, infant, infectious diseases