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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) colonization and infection in intravenous
Amany El-Sharif1, Hossam M Ashour
1Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, Cairo 11562, Egypt.
Abstract:
Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen in hospital-acquired and community-acquired infections. We hypothesized that drug abuse is a risk factor for community-acquired MRSA (CA-MRSA) infection, and we employed a rapid multiplex PCR technique for MRSA identification. The study was conducted on MRSA isolates from 60 opiate addicts (intravenous and inhalational drug users) to detect the rate and location of MRSA colonization and infection among them in comparison to 60 non-addict patients and 15 healthy volunteer controls. The proportion of addicts with MRSA colonization (and/or infection) was significantly higher than non-addict patients with MRSA colonization. MRSA colonization was associated with infection in 58% of MRSA-colonized addicts. The MRSA nasal carriage in the addicts was significantly higher than MRSA carriage elsewhere, whether in the addicts group or in the non-addict patients group. Moreover, the nasopharyngeal carriage rate of MRSA among addicts was significantly higher than among the non-addict patients. Increasing the duration of addiction resulted in a significant increase in CA-MRSA colonization in opiate addicts. Both inhalational and intravenous drug use led to significant MRSA colonization in the addict population. In conclusion, this study demonstrated how drug abusers, a high-risk group for infections with MRSA, could be a source or a reservoir of CA-MRSA infection in the non-addict population.
Insights
Drug abuse significantly increases the risk of methicillin-resistant Staphylococcus aureus (MRSA) colonization and infection, particularly in opiate addicts. This high-risk group may act as a reservoir for community-acquired MRSA (CA-MRSA) transmission.
Area of Science:
- Infectious Diseases
- Public Health
- Microbiology
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of hospital and community infections.
- Drug abuse is increasingly recognized as a potential risk factor for infectious diseases.
Purpose of the Study:
- To investigate the hypothesis that drug abuse is a risk factor for community-acquired MRSA (CA-MRSA) infection.
- To determine the prevalence and location of MRSA colonization and infection in opiate addicts compared to non-addicts.
Main Methods:
- A rapid multiplex PCR technique was used for MRSA identification.
- MRSA isolates were analyzed from 60 opiate addicts (intravenous and inhalational drug users), 60 non-addict patients, and 15 healthy controls.
Main Results:
- MRSA colonization and/or infection rates were significantly higher in opiate addicts than in non-addict patients.
- MRSA nasal carriage was significantly more prevalent in addicts than carriage elsewhere.
- The duration of addiction and both inhalational and intravenous drug use were associated with increased CA-MRSA colonization.
Conclusions:
- Drug abusers represent a high-risk group for MRSA infections and colonization.
- Opiate addicts serve as a significant reservoir for CA-MRSA, potentially contributing to its spread in the non-addict population.
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