Containment of a multiresistant Serratia marcescens outbreak

Area of Science:

• Infectious Diseases
• Burn Care
• Microbiology

Background:

• Severe burns increase infection risk, particularly with multidrug-resistant organisms.
• Serratia marcescens is an opportunistic pathogen causing significant nosocomial infections in vulnerable patients.

Purpose of the Study:

• To report a case of multidrug-resistant Serratia marcescens outbreak in a burn center.
• To highlight the importance of early recognition and infection control measures in preventing the spread of resistant bacteria.

Main Methods:

• Case study of a pediatric burn patient with Serratia marcescens infection.
• Surveillance cultures of patients and environmental screening.
• Antimicrobial susceptibility testing to identify resistance patterns.

Main Results:

• A 3-year-old burn patient developed colonization with Serratia marcescens resistant to multiple antibiotics.
• Two subsequent patients admitted with similar injuries also showed colonization with the same organism.
• Despite strict isolation and treatment, one patient died, while the other two survived but remained colonized.

Conclusions:

• Early identification of multidrug-resistant Serratia marcescens is critical for effective infection control in burn units.
• Prompt implementation of isolation precautions can prevent the wider dissemination of resistant pathogens.
• Burn patient management requires vigilant monitoring for multidrug-resistant organisms and rapid response to outbreaks.