Simple and Rapid Discrimination of Methicillin-Resistant Staphylococcus aureus Based on Gram Staining and Machine Vision

Author:

Yu Menghuan1,Shi Haimei1,Shen Hao1,Chen Xueqin2,Zhang Li3,Zhu Jianhua2,Qian Guoqing2ORCID,Feng Bin1ORCID,Yu Shaoning1ORCID

Affiliation:

1. Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, China

2. Department of Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China

3. Department of Clinical Lab, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy Medical Science, Beijing, China

Abstract

Oxacillin sodium salt destroys the integrity of the cell wall of MSSA immediately, appearing Gram negative, whereas MRSA is relatively stable and still appears Gram positive. This color change can be detected by microscopic examination and MV analysis. This new strategy has significantly reduced the time to detect resistance. The results show that using oxacillin sodium salt combined with Gram staining and MV analysis is a new, simple and rapid method for identification of MRSA.

Funder

Project of Ningbo Leading Medical & Health Discipline

Ningbo 2025 Science and Technology Major Project

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Cell Biology,Microbiology (medical),Genetics,General Immunology and Microbiology,Ecology,Physiology

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