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CDC quantifies threat of resistant HAIs in US


 

Doctor examines patient

in the intensive care unit

New data from the US Centers for Disease Control and Prevention (CDC) suggest the incidence of certain healthcare-associated infections (HAIs) has fallen in recent years, but antibiotic-resistant bacteria remain a threat.

Therefore, the CDC is advising healthcare workers to use a combination of infection control recommendations to better protect patients from these infections.

“New data show that far too many patients are getting infected with dangerous, drug-resistant bacteria in healthcare settings,” said CDC Director Tom Frieden, MD.

The facts and figures are available in the CDC’s latest Vital Signs report and the agency’s annual progress report on HAI prevention.

The data indicate that 1 in 7 catheter- and surgery-related HAIs in acute care hospitals can be caused by 6 types of antibiotic-resistant bacteria. That number increases to 1 in 4 infections in long-term acute care hospitals.

The 6 antibiotic-resistant threats are carbapenem-resistant Enterobacteriaceae (CRE), methicillin-resistant Staphylococcus aureus (MRSA), ESBL-producing Enterobacteriaceae (extended-spectrum β-lactamases), vancomycin-resistant Enterococcus (VRE), multidrug-resistant Pseudomonas aeruginosa, and multidrug-resistant Acinetobacter.

Prevention and resistance

According to the CDC’s data, acute care hospitals saw a 50% decrease in central line-associated bloodstream infections between 2008 and 2014. But 1 in 6 remaining central line-associated bloodstream infections is caused by urgent or serious antibiotic-resistant bacteria.

Between 2008 and 2014, acute care hospitals saw a 17% decrease in surgical site infections related to 10 procedures that were tracked in previous HAI progress reports. One in 7 remaining surgical site infections is caused by urgent or serious antibiotic-resistant bacteria.

Acute care hospitals saw no change in the incidence of catheter-associated urinary tract infections (CAUTIs) between 2009 and 2014. However, there was a reduction in CAUTIs between 2013 and 2014. One in 10 CAUTIs is caused by urgent or serious antibiotic-resistant bacteria.

The Vital Signs report also examines Clostridium difficile, which caused almost half a million infections in the US in 2011 alone. The CDC’s annual progress report shows that hospital-onset C difficile infections decreased by 8% between 2011 and 2014.

In addition to the reports, the CDC has released a web app with interactive data on HAIs caused by antibiotic-resistant bacteria.

The tool, known as the Antibiotic Resistance Patient Safety Atlas, provides national, regional, and state map views of superbug/drug combinations showing percent resistance over time. The Atlas uses data reported to the CDC’s National Healthcare Safety Network from 2011 to 2014 from more than 4000 healthcare facilities.

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