Related Experiment Videos
[Mupirocin resistant MRSA in Japan]
1Department of Infectious Diseases, Tokyo Women's Medical University.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|April 18, 2001
Summary
High-level mupirocin resistance in methicillin-resistant Staphylococcus aureus (MRSA) has been identified in Japan. This discovery highlights the need for ongoing surveillance of antibiotic resistance in clinical settings.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Context:
- Mupirocin is an antibiotic used to eradicate nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA).
- High-level mupirocin resistance in S. aureus has been reported globally, but not previously in Japan.
- Routine screening for mupirocin resistance was implemented in a Japanese hospital following mupirocin's introduction in 1996.
Purpose:
- To report the first isolation of high-level mupirocin-resistant MRSA in Japan.
- To characterize the genetic basis and transferability of mupirocin resistance.
Summary:
- A neonate in Japan presented with severe nephrotic syndrome and was found to carry high-level mupirocin-resistant MRSA.
- The resistance was confirmed to be mediated by the mupA gene, which was transferable via filter-mating along with resistance to other antibiotics.
- The MRSA strain was successfully eradicated using vancomycin prophylaxis.
Impact:
- This finding represents the first documented case of high-level mupirocin-resistant MRSA in Japan.
- It underscores the importance of continuous monitoring for antibiotic resistance to guide effective treatment strategies.
- Highlights potential challenges in MRSA eradication in clinical practice due to emerging resistance mechanisms.