WASHINGTON, Aug. 10 (Xinhua) — Health care-associated invasive methicillin-resistant Staphylococcus aureus (MRSA) infections have decreased among U.S. patients with infections that began in the community or in the hospital, according to a study to be published on Wednesday in the Journal of the American Medical Association.
Researchers at the U.S. Centers for Disease Control and Prevention used a population-based surveillance system to evaluate the incidence of invasive health care-associated MRSA infections from 2005 through 2008 in nine metropolitan areas covering a population of approximately 15 million persons.ns.
All reports of laboratory-identified episodes of invasive MRSA infections were evaluated and classified based on the setting of the positive culture and the presence or absence of health care exposures. Health care-associated infections (i.e., hospital-onset and health care-associated community-onset), which made up 82 percent of the total infections, were included in the analysis.
Overall, the participating surveillances sites reported 21,503 cases of invasive MRSA infections for the years 2005 through 2008, with 17,508 cases either hospital-onset or health care-associated community-onset. Most health care-associated infections (88 percent) involved a positive blood culture and were classified as a bloodstream infection.
“The modeled incidence, adjusted for age and race, of hospital- onset invasive MRSA infections significantly decreased 9.4 percent per year from 2005 through 2008; while there was a significant 5.7- percent decrease per year in the modeled incidence of health care- associated community-onset infections. This would equate to about a 28-percent decrease in all hospital-onset invasive MRSA infections and about a 17-percent decrease in all invasive health care-associated community-onset infections over the four-year period,” the authors write.Rate of health care associated mrsa infections decreasing in u s – Programmable Smart CardRate of health care associated mrsa infections decreasing in u s – Programmable Smart Card
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