Survival of cephalosporin-resistant enterobacteriaceae on fingers

Area of Science:

• Microbiology
• Infectious Diseases
• Public Health

Background:

• Antibiotic resistance is a growing global health concern.
• Third-generation cephalosporins are crucial antibiotics for treating serious infections.
• Enterobacter and Pantoea species are opportunistic pathogens that can cause hospital-acquired infections.

Purpose of the Study:

• To investigate the survival of antibiotic-resistant Enterobacter and Pantoea species on human fingertips.
• To determine if bacterial strain origin (clustered vs. sporadic transmission) correlates with fingertip survival.
• To assess the variability of bacterial survival across different individuals.

Main Methods:

• Five strains of Enterobacter species and one Pantoea species, all resistant to third-generation cephalosporins, were used.
• Strains were isolated from either clusters of premature infants/children or individual cases.
• Strains were inoculated onto the fingertips of 10 healthy volunteer participants.

Main Results:

• No significant difference in bacterial survival was observed between strains from clustered transmissions and those from sporadic cases.
• Significant variations in bacterial survival rates were found among the 10 individual participants.
• This suggests host factors may play a role in bacterial persistence on skin.

Conclusions:

• Fingertip survival of third-generation cephalosporin-resistant Enterobacter and Pantoea species is not significantly influenced by transmission pattern (clustered vs. sporadic).
• Individual participant characteristics significantly impact bacterial survival on skin, highlighting potential host-related factors in transmission dynamics.
• Further research is needed to elucidate the specific host factors contributing to bacterial persistence and horizontal transmission in healthcare settings.