Related Experiment Video

Updated: Jun 14, 2026

Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
08:58

Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes

Published on: March 3, 2023

[Classification and diagnostics of multiresistant bacteria]

C M Schneider1, A Serr

  • 1Institut für Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Freiburg, Hermann-Herder-Str. 11, 79104 Freiburg. christian.schneider@uniklinik-freiburg.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|April 10, 2010
PubMed

Insights

Multidrug-resistant organisms are a growing global threat. Understanding their spread and improving rapid diagnostics are crucial for effective treatment and combating antimicrobial resistance.

Area of Science:

  • Microbiology
  • Genetics
  • Infectious Diseases

Context:

  • Multidrug-resistant organisms (MDROs) are a significant global health concern.
  • Resistance mechanisms spread via chromosomal (clonal expansion) and plasmid (horizontal transfer) means.
  • Examples include methicillin-resistant Staphylococcus aureus and extended-spectrum beta-lactamases.

Purpose:

  • To highlight the challenges posed by multidrug resistance.
  • To emphasize the need for improved laboratory diagnostics.
  • To underscore the importance of increased physician knowledge.

Summary:

  • MDROs are spreading globally, limiting treatment options.
  • Chromosomal resistance spreads through clonal expansion, while plasmid resistance, like extended-spectrum beta-lactamases, spreads horizontally.
  • This leads to treatment failures and necessitates complex diagnostic approaches.

Impact:

  • Enhanced understanding of MDRO spread is vital.
  • Improved diagnostic methods are needed to combat resistance.
  • Physicians require increased knowledge for effective patient management.

More Related Videos

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria14:04

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria

Published on: May 8, 2013

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures08:30

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

Published on: July 9, 2012

Related Concept Videos

Methods of Classification and Identification01:28

Methods of Classification and Identification

Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
Automated Microbial Diagnostics01:24

Automated Microbial Diagnostics

Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
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...
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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...
Microbial Classification System01:24

Microbial Classification System

Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...