Panorama of Bacterial Infections Caused by Epidemic Resistant Strains

João Victor de Oliveira Santos1, Sérgio Dias da Costa Júnior1, Sandrelli Meridiana de Fátima Ramos Dos Santos Medeiros1

  • 1Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, CEP: 50670-901, Brazil.

Current Microbiology
|April 30, 2022
PubMed

Insights

Antimicrobial resistance (AMR) is a global health crisis, with rising epidemic strains like MRSA and VRE becoming common. This review examines the status of these dangerous, drug-resistant bacteria.

Area of Science:

  • Microbiology
  • Public Health
  • Infectious Diseases

Background:

  • Antimicrobial resistance (AMR) poses a critical global public health threat.
  • Increasing prevalence of epidemic resistant strains, including nosocomial pathogens, is alarming.
  • Broad-spectrum antibiotic use exacerbates resistance and leads to poor patient prognosis.

Purpose of the Study:

  • To review the current status of prevalent epidemic antimicrobial-resistant strains.
  • To highlight the public health implications of increasing bacterial resistance.
  • To provide an overview of key resistant pathogens.

Main Methods:

  • Literature review of current scientific publications.
  • Analysis of epidemiological data on resistant strains.
  • Synthesis of information on Methicillin-resistant Staphylococcus aureus (MRSA), Vancomycin-resistant Enterococcus (VRE), MDR Mycobacterium tuberculosis, Extended-spectrum β-lactamase-producing Enterobacterales (ESBL), Klebsiella pneumoniae carbapenemase (KPC), and New Delhi Metallo-beta-lactamase-producing Pseudomonas aeruginosa (NDM).

Main Results:

  • Epidemic strains of MRSA, VRE, MDR TB, ESBL, KPC, and NDM-producing P. aeruginosa are increasingly prevalent.
  • These resistant pathogens are transitioning from hospital-acquired to community-acquired infections.
  • Therapeutic challenges are compounded by limited treatment options and the rise of multidrug resistance.

Conclusions:

  • The escalating crisis of antimicrobial resistance demands urgent attention and novel therapeutic strategies.
  • Understanding the current status of these epidemic strains is crucial for effective public health interventions.
  • Continued surveillance and research are essential to combat the spread of resistant bacteria.

Related Concept Videos

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...
273
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.6K
Antibiotic Selection00:57

Antibiotic Selection

Overview
55.6K
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
44.9K
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
108
Infection01:20

Infection

When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
8.8K