Secondary Bacterial Infections in Patients with Atopic Dermatitis or Other Common Dermatoses

Area of Science:

• Dermatology
• Microbiology
• Infectious Diseases

Background:

• Secondary bacterial infections frequently complicate common dermatoses, including atopic dermatitis, ectoparasitosis, and varicella zoster virus infections.
• Staphylococcus aureus and Streptococcus pyogenes are the most frequently implicated bacteria, alongside Gram-negative infections in conditions like foot dyshidrotic eczema.

Purpose of the Study:

• To review the factors contributing to secondary bacterial infections in dermatoses.
• To discuss the clinical aspects, treatment strategies, and prevention of these superinfections.

Main Methods:

• Literature review of secondary bacterial infections in common dermatoses.
• Analysis of contributing factors, bacterial etiology, clinical presentations, and treatment approaches.

Main Results:

• Epidermal barrier alteration and itch are primary factors favoring bacterial superinfections.
• Mite-bacteria interactions and environmental factors influence infection patterns, with geographical origin impacting bacterial ecology.
• Antibiotic treatment choice depends on infection severity and suspected pathogens, often targeting S. aureus.

Conclusions:

• Effective management of the underlying dermatosis is paramount for preventing secondary bacterial infections.
• Patient education on skin hygiene and lesion monitoring is crucial.
• Staphylococcus aureus decolonization is recommended for recurrent infections, especially in atopic dermatitis.