Antimicrobial-resistant Staphylococcus aureus and MRSA prevalence among Korean families and household items

Area of Science:

• Microbiology
• Public Health
• Infectious Diseases

Background:

• Antimicrobial resistance (AMR) is a growing global health threat.
• Staphylococcus aureus, including methicillin-resistant Staphylococcus aureus (MRSA), is a common pathogen found in community settings.
• Understanding the prevalence of AMR S. aureus in households is crucial for public health interventions.

Purpose of the Study:

• To survey the prevalence and antimicrobial resistance patterns of Staphylococcus aureus strains in Korean homes.
• To identify the presence of methicillin-resistant Staphylococcus aureus (MRSA) in household and resident samples.
• To provide data for public health strategies aimed at controlling AMR in community environments.

Main Methods:

• Disk diffusion method was used to test antimicrobial resistance against various antibiotics.
• Polymerase chain reaction (PCR) was employed to detect the mecA gene, confirming MRSA.
• Samples were collected nationwide from residents and household items in Korean homes.

Main Results:

• Out of 179 S. aureus strains, significant resistance was observed for ampicillin (96.6%) and penicillin (96.6%).
• 7.3% of isolates were multi-drug resistant (resistant to ≥3 antimicrobial classes).
• Nine oxacillin-resistant strains were identified as MRSA via PCR, found in 4 residents and 4 loofah samples.

Conclusions:

• Antimicrobial-resistant Staphylococcus aureus, including MRSA, circulates within Korean community settings.
• The presence of multi-drug resistant strains necessitates targeted public health interventions.
• Findings emphasize the importance of monitoring and controlling AMR in domestic environments to prevent community spread.