Bacteria resistant to last-resort antibiotic missed by standard tests

Emory microbiologists have detected heteroresistance to colistin, a last-resort antibiotic, in already highly resistant Klebsiella pneumoniae, a bacterium that causes blood, soft tissue and urinary tract infections.

The results are published online in the journal mBio.

David Weiss, PhD, director of the Emory Antibiotic Resistance Center and a researcher at the Yerkes National Primate Research Center, and his colleagues previously observed heteroresistance to colistin in other bacteria, called Enterobacter. Dr. Weiss is also a faculty member in the IMP and MMG programs.

The first author of the paper is Immunology and Molecular Pathogenesis graduate student Victor Band.

Click here to view the full story in the Emory News Center. The story was also featured in Ars Technica and The Wall Street Journal.