By Dr. Sanchari Sinha Dutta, Ph.D. Reviewed by Lauren Hardaker Apr 22 2026 Even with results delivered hours earlier, rapid diagnostic testing did not translate into better survival or recovery, highlighting the complex realities of treating drug-resistant infections worldwide.  Study: Fast Antimicrobial Susceptibility Testing for GramNegative Bacteremia . Image credit: TopMicrobialStock/Shutterstock.com A randomized clinical trial involving patients with gram-negative bacterial infection