Prospects for the prevention and control of gram-negative nosocomial infections

S J Cryz1

  • 1Swiss Serum and Vaccine Institute, Berne.

Vaccine
|December 1, 1987
PubMed

Insights

Nosocomial infections, often caused by Gram-negative bacilli like E. coli, are a major cause of hospital-acquired illness and death. This review explores strategies to combat these persistent bacterial threats.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Hospital Epidemiology

Background:

  • Nosocomial infections (hospital-acquired infections) are a significant cause of patient morbidity and mortality.
  • Approximately 5% of hospitalized individuals acquire infections during their stay, with 3% contributing to fatal outcomes.
  • Aerobic Gram-negative bacilli, including Escherichia coli, Pseudomonas aeruginosa, and Klebsiella spp., are predominant nosocomial pathogens.

Purpose of the Study:

  • To review the current landscape of bacterial nosocomial infections.
  • To discuss the challenges posed by key Gram-negative pathogens.
  • To explore future strategies for combating these infections.

Main Methods:

  • Literature review of current epidemiological data on nosocomial infections.
  • Analysis of the role of specific Gram-negative bacilli in severe hospital-acquired infections.
  • Discussion of existing and emerging therapeutic and preventative approaches.

Main Results:

  • Gram-negative bacilli are responsible for a substantial proportion of serious nosocomial infections.
  • Escherichia coli, Pseudomonas aeruginosa, and Klebsiella spp. are frequently implicated in life-threatening cases.
  • The review highlights the ongoing threat these pathogens pose to hospitalized patients.

Conclusions:

  • Effective strategies are crucial to mitigate the impact of nosocomial infections caused by Gram-negative bacteria.
  • Continued research and implementation of control measures are necessary to reduce associated morbidity and mortality.
  • Future prospects involve innovative approaches to prevent and treat these infections.

Related Concept Videos

Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic01:26

Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic

Healthcare-associated infections (HAIs) occur in a healthcare facility while a person receives care for another ailment. This category also includes work-related infections among healthcare staff.
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies. Common...
Healthcare Associated Infections II: Preventive Measures01:22

Healthcare Associated Infections II: Preventive Measures

Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...