Adriana Medianeira Rossato, Keli Cristine Reiter, Pedro Alves d’ Azevedo


Objective: To conduct a reflection about the pathogenicity, antimicrobial resistance, and clinical implications of the infections caused by Staphylococcus aureus. Method: Reflexive analysis, supported by theoretical references about the pathogenicity, antimicrobial resistance, and clinical implications of the staphylococcal infections. Results: The pathogenesis of S. aureus infections is complex and depends on the host characteristics, expression of virulence factors and ability to develop resistance to antimicrobials. Methicillin-resistant S. aureus (MRSA) is related to an advancement of healthcare- and community-acquired infections, being vancomycin the primary therapeutic option. Infections caused by S. aureus with reduced vancomycin susceptibility (hVISA/VISA) have been associated with treatment failures and increased mortality. Conclusion: With the evolution of S. aureus to MRSA, hVISA and VISA, the treatment of staphylococcal infections has become a major challenge for the medical clinic, and an adequate and early antibiotic therapy is essential for decreasing morbidity and mortality rates related to this microorganism.


Staphylococcus aureus; Patogenicidade; Resistência aos antimicrobianos;

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