Some common super-bacteria have developed a resistance to a last-resort antibiotic, worrying doctors that the dangerous bacteria can evade one of what was thought to be a last resort antibiotic. But researchers from Emory University found this drug-resistant bacteria.
Colistin is an antibiotic which doctors administer to patients when the bacteria are resistant to all other antibiotics. However, the Emory study suggests that colistin may not work in some patients, even though lab tests show that it should. Carbapenem-resistant Klebsiella pneumoniae cause pneumonia, bloodstream and other infections in people with weakened immune systems, who are usually hospitalized with other conditions. The scientists infected mice with the bacteria and treated them with colistin, but the mice died.