A preliminary exploration on the mechanism of the carbapenem-resistance transformation of Serratia marcescens in vivo.

"data availability the sequencing data for the 14 isolates have been deposited at ncbi (bioproject: prjna991124) under the accession numbers samn36289077-samn36289090 ( https://www ncbi nlm nih gov/sra/prjna991124 ). data availability the sequencing data for the 14 isolates have been deposited at ncbi (bioproject: prjna991124"

"Declarations Ethical approval and consent to participateEthical approval of this study was approved by the Ethics committee of the First Affiliated Hospital, Zhejiang University School of Medicine (IRB Number: 2021 − 1002) and all methods were carried out in accordance with relevant guidelines and regulations. The collection of CRSM was part of the hospital standard care and the routine laboratory procedure, not for purposes of this study. Therefore, the need for informed consent was waived by the Ethics committee of the First Affiliated Hospital, Zhejiang University School of Medicine. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This work was supported by the National Key Research and Development Program of China (2021YFC2300300), the Natural Science Foundation of Zhejiang Province (LQ22H190004), CAMS Innovation Fund for Medical Sciences (2019-I2M-5-045) and the Fundamental Research Funds for the Central Universities (2022ZFJH003)."