What are the main pathogens found in ICU blood cultures with high resistance?

Klebsiella pneumoniae and Escherichia coli were the most common pathogens isolated from ICU blood cultures, exhibiting significant antimicrobial resistance.

How resistant are gram-negative bacteria to antibiotics in ICUs?

Gram-negative bacteria in ICUs show widespread resistance to multiple antibiotic classes, including nearly 70% resistance to carbapenems like meropenem.

Why are intensive care units epicenters for infections?

ICUs are prone to higher infection rates due to prolonged patient stays, the frequent use of invasive devices, and the heightened vulnerability of critically ill patients.

Home / Health / Superbugs Threaten ICU Care: Antibiotic Resistance Soars

Superbugs Threaten ICU Care: Antibiotic Resistance Soars

20 Apr

•

Summary

Gram-negative bacteria show high resistance to antibiotics.
Carbapenem resistance nears 70%, limiting treatment options.
ICUs are epicenters for infections due to vulnerability.

Superbugs Threaten ICU Care: Antibiotic Resistance Soars

A hospital-based cross-sectional study published in March 2026 highlights a critical rise in antimicrobial resistance among gram-negative pathogens isolated from intensive care unit (ICU) blood cultures. Researchers analyzed 247 bacterial isolates collected between January 2023 and December 2024, revealing widespread resistance to multiple antibiotic classes.

Klebsiella pneumoniae was the most prevalent pathogen, accounting for 27.5% of isolates, followed by Escherichia coli at 20.6%. These bacteria demonstrated resistance to penicillins, cephalosporins, and even carbapenems, with resistance to meropenem approaching 70%. Notably, nearly 78% of Klebsiella pneumoniae isolates were resistant to ceftazidime-avibactam, a concerning trend indicating dwindling treatment options even with advanced drugs.