Bacterias multiresistentes en USA.

Dangerous Antibiotic-Resistant Bacteria Identified Across U.S.

By Kelly Young

Edited by David G. Fairchild, MD, MPH, and Lorenzo Di Francesco, MD, FACP, FHM

In the first 9 months of 2017, the CDC's surveillance system identified 221 bacterial isolates with rare antibiotic-resistance genes in 27 states. 

The discovery of these cases with non-KPC carbapenemases — which make the bacteria highly resistant to antibiotics — coincides with an effort by the CDC to react quickly to new multidrug-resistant organisms. In a Vital Signs report, the authors write: "These rare forms of resistance have the potential to add to the U.S. [carbapenem-resistant Enterobacteriaceae (CRE)] burden and represent an important opportunity to prevent the spread of novel resistance at its earliest stage."

Other efforts to limit the spread of antibiotic-resistant bacteria appear to be working. In 2009, the CDC issued guidance on intervening when CRE were identified at healthcare facilities. Using surveillance data from acute-care hospitals, the CDC found that the proportion of Klebsiella pneumoniae and Escherichia coli isolates with a CRE phenotype fell from 8.8% in 2006 to 3.1% in 2015.

MMWR Vital Signs article (Free)

Background: Physician's First Watch coverage of K. pneumoniaeresistance to last-resort antibiotic (Free)