Recurrent staphylococcal furunculosis. Bacteriological findings and epidemiology in 100 cases

Area of Science:

• Microbiology
• Epidemiology
• Dermatology

Background:

• Recurrent staphylococcal furunculosis poses a significant clinical challenge.
• Identifying the sources and transmission routes of Staphylococcus aureus is essential for effective management.
• Phage typing is a valuable tool for differentiating bacterial strains and tracing outbreaks.

Purpose of the Study:

• To investigate the phage types of Staphylococcus aureus strains in patients with recurrent furunculosis.
• To determine the potential sources of contamination, including hospital and community environments.
• To establish the role of nares, perineum, and groin carriage in recurrent infections.

Main Methods:

• A 3-year study involving 100 cases of recurrent staphylococcal furunculosis.
• Collection and phage typing of Staphylococcus aureus strains from skin lesions, nares, perineum, and groins.
• Epidemiological analysis to correlate phage types with potential contamination sources and patient history.

Main Results:

• Phage group II Staphylococcus aureus strains were identified in 58% of cases.
• Identical phage types were found in nares and lesions in approximately 50% of patients.
• Perineal/groin carriage of the same phage type as the lesion occurred in only 14% of cases, predominantly phage group II.
• Phage group II strains were more frequently associated with suspected extrinsically acquired infections rather than hospital-acquired infections.

Conclusions:

• Recurrent staphylococcal furunculosis predominantly originates from sources outside healthcare settings.
• Phage typing of Staphylococcus aureus strains from both lesions and nares is critical for epidemiological analysis.
• Understanding carriage sites and strain types aids in preventing and managing recurrent infections.