Community-associated Methicillin-resistant Infection: Literature Review and Clinical Update

Overview

Journal Can Fam Physician

Specialties General Medicine
Public Health

Date 2017 Jul 14

PMID 28701438

Citations 36

Authors

Kassandra Loewen

Yoko Schreiber

Mike Kirlew

Natalie Bocking

Len Kelly

Affiliations

Soon will be listed here.

Abstract

Objective: To provide information on the prevalence and treatment of methicillin-resistant (MRSA) infections and the distinction between community-associated MRSA and health care-associated MRSA.

Quality Of Evidence: The MEDLINE and EMBASE databases were searched from 2005 to 2016. Epidemiologic studies were summarized and the relevant treatment literature was based on level I evidence.

Main Message: The incidence of community-associated MRSA infection is rising. Certain populations, including indigenous Canadians and homeless populations, are particularly affected. Community-associated MRSA can be distinguished from health care-associated MRSA based on genetic, epidemiologic, or microbiological profiles. It retains susceptibility to some oral agents including trimethoprim-sulfamethoxazole, clindamycin, and tetracyclines. Community-associated MRSA typically presents as purulent skin and soft tissue infection, but invasive infection occurs and can lead to severe, complicated disease. Treatment choices and the need for empiric MRSA coverage are influenced by the type and severity of infection.

Conclusion: Community-associated MRSA is a common cause of skin and soft tissue infections and might be common in populations where overcrowding and limited access to clean water exist.

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