Community-associated methicillin-resistant Staphylococcus aureus and healthcare risk factors.
To determine frequency of methicillin-resistant Staphylococcus aureus infections caused by strains typically associated with community-acquired infections (USA300) among persons with healthcare-related risk factors (HRFs), we evaluated surveillance data. Of patients with HRFs, 18%-28% had a "community-associated" strain, primarily USA300; of patients without HRFs, 26% had a "healthcare-associated" strain, typically USA100.
Klevens
R Monina
RM
Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. rmk2@cdc.gov
Morrison
Melissa A
MA
Fridkin
Scott K
SK
Reingold
Arthur
A
Petit
Susan
S
Gershman
Ken
K
Ray
Susan
S
Harrison
Lee H
LH
Lynfield
Ruth
R
Dumyati
Ghinwa
G
Townes
John M
JM
Craig
Allen S
AS
Fosheim
Gregory
G
McDougal
Linda K
LK
Tenover
Fred C
FC
D017714:Community-Acquired Infections / Q000453:epidemiology / Q000382:microbiology*; D003428:Cross Infection / Q000453:epidemiology / Q000382:microbiology*; D016521:Electrophoresis, Gel, Pulsed-Field; D006801:Humans; D016106:Methicillin Resistance; D008875:Middle Aged; D013203:Staphylococcal Infections / Q000453:epidemiology / Q000382:microbiology*; D013211:Staphylococcus aureus / Q000254:growth & development*; D014481:United States / Q000453:epidemiology