Community-associated methicillin-resistant Staphylococcus aureus infections in Pacific Islanders--Hawaii, 2001-2003

    Insights

    Community-associated Methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are increasing, particularly among Pacific Islanders (PIs) in Hawaii. Further research is needed to understand and prevent these disproportionate CA-MRSA infections in PIs.

    Area of Science:

    • Infectious Diseases
    • Public Health
    • Epidemiology

    Background:

    • Methicillin-resistant Staphylococcus aureus (MRSA) is increasingly causing skin and soft-tissue infections outside of healthcare settings.
    • Certain populations, including American Indian/Alaska Native and Pacific Islander (PI) individuals, exhibit high rates of MRSA colonization and infection.
    • An increase in MRSA-related skin abscesses in ambulatory care settings was noted in 2003.

    Purpose of the Study:

    • To investigate the epidemiology of community-associated MRSA (CA-MRSA) infections in Hawaii.
    • To identify demographic disparities in CA-MRSA infections within the Hawaiian population.

    Main Methods:

    • Retrospective study analyzing CA-MRSA infection cases in Hawaii.
    • Comparison of the proportion of CA-MRSA cases among Pacific Islanders (PIs) and Asians relative to their population representation.

    Main Results:

    • The study identified a higher proportion of CA-MRSA cases among Pacific Islanders (PIs) compared to Asians in Hawaii.
    • This proportion was disproportionate relative to the respective demographic representation in the general population.

    Conclusions:

    • Pacific Islanders (PIs) in Hawaii experience a disproportionately high burden of CA-MRSA infections.
    • Targeted prevention strategies are necessary to address the factors contributing to the elevated rates of CA-MRSA among PIs.

    Related Concept Videos

    Clinical Significance of Antibiotic Resistance01:25

    Clinical Significance of Antibiotic Resistance

    Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
    Staphylococcal Skin Infections01:29

    Staphylococcal Skin Infections

    Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
    Mechanism of Antibiotic Resistance in MRSA01:25

    Mechanism of Antibiotic Resistance in MRSA

    Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
    Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic01:26

    Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic

    Healthcare-associated infections (HAIs) occur in a healthcare facility while a person receives care for another ailment. This category also includes work-related infections among healthcare staff.
    HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies. Common...