Navarro JS, Fontalvo RD

Language: Spanish
References: 16
Page: 625-631
PDF size: 259.65 Kb.

ABSTRACT

Introduction: Streptococcus salivarius (S. salivarius) is a commensal bacterium of the human oral mucosa and gut. It has been used as probiotic in the prevention of lower respiratory tract infection and as a strong antagonist to the growth of Streptococcus pyogenes. Pneumonia due to this bacterium is a rare and invasive disease which has been described in immunosuppressant individuals. Because it is a rare microorganism, its antimicrobial resistance is low.
Clinical case: a seven-month-old male with fever, non-cyanosing cough and rhinorrhea, accompanied by gastrointestinal symptoms that progressed to pneumonia and bacteremia. S. salivarius resistant to beta-lactams and aminoglycosides was isolated from blood culture at 48 hours. He was managed with vancomycin with clinical improvement.
Conclusion: S. salivarius can cause life-threatening infections in paediatric patients, especially in premature newborn and patients with immunosuppression or malnutrition. We recommend considering these aspects in paediatric patients to prevent negative outcomes.

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