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Updated: Jun 9, 2025

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
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Characterization of a novel lytic phage against methicillin resistance Staphylococcus aureus in Hainan island

Yanmei Li1, Yue Zhang1, Anyang Li1

  • 1School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China.

Virology
|October 29, 2024
PubMed

Insights

A novel bacteriophage, vB_SauP_L1, effectively targets Methicillin-resistant Staphylococcus aureus (MRSA). This phage shows promise as a safe and effective alternative for combating MRSA infections, a growing global health concern.

Area of Science:

  • Microbiology
  • Virology
  • Infectious Diseases

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant global public health threat.
  • Hainan province faces challenges with MRSA infections, necessitating alternative therapeutic strategies.

Purpose of the Study:

  • To isolate and characterize a bacteriophage with lytic activity against MRSA.
  • To evaluate the potential of the isolated phage as a therapeutic agent for MRSA infections.

Main Methods:

  • Isolation of bacteriophage vB_SauP_L1 from natural sources.
  • Assessment of phage morphology and genomic characteristics.
  • Evaluation of phage proliferation rate, environmental tolerance, and stability.
  • Genomic sequencing to identify virulence or resistance genes.

Main Results:

  • Phage vB_SauP_L1 lysed 18 out of 35 clinical MRSA isolates.
  • The phage demonstrated satisfactory proliferation and environmental stability.
  • Genomic analysis revealed a 17,114 bp linear double-stranded DNA genome.
  • No virulent or antibiotic resistance genes were detected in the phage genome.

Conclusions:

  • Phage vB_SauP_L1 is a promising candidate for MRSA therapeutic applications.
  • The absence of harmful genes supports its safety profile for clinical use.
  • This phage represents a potential alternative strategy for MRSA prevention and treatment.
Keywords:
BacteriophageMethicillin resistance Staphylococcus aureusRosenblumvirus

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