Outbreak of extensively drug-resistant Serratia marcescens in an intensive care unit

Area of Science:

• Infectious Diseases
• Critical Care Medicine
• Microbiology

Background:

• Outbreaks of extensively drug-resistant bacteria pose significant threats in intensive care units (ICUs).
• Serratia marcescens is an opportunistic pathogen that can cause severe infections, particularly in vulnerable patient populations.

Purpose of the Study:

• To investigate and control an outbreak of extensively drug-resistant Serratia marcescens in a trauma intensive care unit.
• To describe the containment strategies implemented and their effectiveness.

Main Methods:

• Epidemiological investigation to identify the source and transmission of the outbreak.
• Implementation of intensive containment measures, including enhanced hygiene protocols and patient isolation.
• Microbiological surveillance to monitor the spread of the specific bacterial strain.

Main Results:

• Four critically ill trauma patients were infected with the same extensively drug-resistant Serratia marcescens strain over a six-week period.
• Intensive containment measures effectively limited the further spread of the outbreak within the ICU.
• The trauma ICU maintained its operational capacity throughout the outbreak investigation and control period.

Conclusions:

• Rapid identification and implementation of containment strategies are crucial for controlling extensively drug-resistant bacterial outbreaks in ICUs.
• Effective outbreak management can mitigate patient harm and ensure continued critical care services.