Mrsa, Community Acquired
- Methicillin-resistant Staphylococcus aureus (MRSA) has historically been a pathogen endemic within health care settings, usually affecting the elderly and chronically ill
- This strain of S. aureus has been termed “health care–associated MRSA” (HA-MRSA)
- Throughout the past decade, MRSA has become an increasingly common pathogen among younger, healthier populations who do not have a health care–related exposure history
- This type of MRSA pathogen has been termed “community-acquired MRSA” (CA-MRSA)
- CA-MRSA is the most common cause of skin and soft tissue infections seen in the ED
- While CA-MRSA may cause skin and soft tissue infection, it may also lead to severe multisystem disease, including sepsis and necrotizing pneumonia
HA-MRSA (see below) is a different genotypic form of MRSA that frequently causes morbidity among the elderly, especially those living within extended-care facilities or those with health care–related exposures
- S. aureus is a gram-positive cocci frequently colonizing the skin
- MRSA refers to a specific strain of S. aureus that has resistance against the antimicrobial properties of numerous antibiotics, including methicillin
- Highest risk for colonization and subsequent infection:
- Athletes (especially wrestlers, football, rugby)
- Children in daycare
- IV drug users
- Those with prior treatment for MRSA or exposure to MRSA
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Schaider, Jeffrey J., et al., editors. "Mrsa, Community Acquired." 5-Minute Emergency Consult, 5th ed., Lippincott Williams & Wilkins, 2016. Emergency Central, emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307685/all/Mrsa_Community_Acquired.
Mrsa, Community Acquired. In: Schaider JJJ, Barkin RMR, Hayden SRS, et al, eds. 5-Minute Emergency Consult. Lippincott Williams & Wilkins; 2016. https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307685/all/Mrsa_Community_Acquired. Accessed June 2, 2023.
Mrsa, Community Acquired. (2016). In Schaider, J. J., Barkin, R. M., Hayden, S. R., Wolfe, R. E., Barkin, A. Z., Shayne, P., & Rosen, P. (Eds.), 5-Minute Emergency Consult (5th ed.). Lippincott Williams & Wilkins. https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307685/all/Mrsa_Community_Acquired
Mrsa, Community Acquired [Internet]. In: Schaider JJJ, Barkin RMR, Hayden SRS, Wolfe RER, Barkin AZA, Shayne PP, Rosen PP, editors. 5-Minute Emergency Consult. Lippincott Williams & Wilkins; 2016. [cited 2023 June 02]. Available from: https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307685/all/Mrsa_Community_Acquired.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Mrsa, Community Acquired ID - 307685 ED - Barkin,Adam Z, ED - Shayne,Philip, ED - Rosen,Peter, ED - Schaider,Jeffrey J, ED - Barkin,Roger M, ED - Hayden,Stephen R, ED - Wolfe,Richard E, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307685/all/Mrsa_Community_Acquired PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -