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Is Streptococcus pneumoniae a nosocomially acquired pathogen?

F Paradisi1, G Corti

  • 1Infectious Disease Unit, University of Florence School of Medicine, Italy. infdis@cesit1.unifi.it

Infection Control and Hospital Epidemiology
|October 3, 1998
PubMed
Summary
This summary is machine-generated.

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Penicillin-resistant Streptococcus pneumoniae causes hospital infections, with nosocomial acquisition increasing mortality. Vaccination is recommended, but effectiveness can be limited.

Area of Science:

  • Microbiology
  • Epidemiology
  • Infectious Diseases

Background:

  • Streptococcus pneumoniae is a primary cause of community-acquired infections.
  • Penicillin-resistant strains have emerged globally due to antibiotic pressure.
  • There is growing concern regarding their role in hospital-acquired infections.

Purpose of the Study:

  • To review the epidemiology of hospital-acquired infections caused by Streptococcus pneumoniae.
  • To identify risk factors and outcomes associated with penicillin-resistant pneumococcal infections.

Main Methods:

  • Literature review on Streptococcus pneumoniae epidemiology and resistance.
  • Analysis of risk factors for nosocomial acquisition and penicillin resistance.
  • Examination of mortality data related to pneumococcal infections.

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Main Results:

  • Penicillin-resistant pneumococcal strains are prevalent worldwide and cause hospital outbreaks.
  • Nosocomial acquisition, pediatric age, prior hospitalization, and beta-lactam therapy are key risk factors.
  • Nosocomial acquisition is linked to increased mortality, though the impact of penicillin resistance on mortality is debated.
  • HIV-infected patients without AIDS have similar mortality to HIV-negative subjects, but AIDS patients face significantly higher mortality.

Conclusions:

  • Penicillin-resistant Streptococcus pneumoniae poses a significant threat in healthcare settings.
  • Understanding risk factors is crucial for preventing nosocomial infections and reducing mortality.
  • Universal pneumococcal vaccination is advised, despite potential limitations in effectiveness.