Rapid Spread and Control of Multidrug-Resistant Gram-Negative Bacteria in COVID-19 Patient Care Units

Area of Science:

• Infectious Diseases
• Microbiology
• Hospital Epidemiology

Background:

• The COVID-19 pandemic led to the establishment of dedicated care units.
• These units experienced challenges including critical illness and high antibiotic usage.
• Modified infection prevention practices were implemented during the pandemic.

Purpose of the Study:

• To describe the rapid spread of multidrug-resistant gram-negative bacteria (MDR-GNB).
• To identify contributing factors to the outbreak in COVID-19 care units.
• To evaluate the role of surveillance culturing in outbreak control.

Main Methods:

• Retrospective review of patient data and infection control measures.
• Surveillance culturing for multidrug-resistant gram-negative bacteria.
• Analysis of contributing factors such as patient acuity, antibiotic use, and room occupancy.

Main Results:

• Rapid spread of multidrug-resistant gram-negative bacteria was observed.
• Key factors included critical illness, high antibiotic consumption, double-room occupancy, and altered infection control protocols.
• Surveillance culturing was instrumental in detecting and managing the outbreak.

Conclusions:

• Dedicated COVID-19 units are vulnerable to the emergence and spread of multidrug-resistant organisms.
• Multifactorial interventions are necessary to mitigate risks.
• Effective surveillance is crucial for timely outbreak recognition and control.