Antibiotic and antiseptic resistance: impact on public health

S B Levy1

  • 1Center for Adaptation Genetics and Drug Resistance, Tufts University School of Medicine, Boston, MA 02111, USA.

Insights

Increased use of antibiotics and antibacterials has led to resistance, with genetic links between them. Educating health professionals and the public on prudent drug use is crucial for maintaining a balanced microbial environment essential for survival.

Area of Science:

  • Microbiology
  • Public Health
  • Pharmacology

Background:

  • The shift of patient care from hospitals to homes increases the need for antimicrobial stewardship.
  • Historically, limited use of vancomycin and triclosan delayed resistance emergence.
  • Increased application of antibiotics and antibacterials has resulted in widespread resistance.

Purpose of the Study:

  • To highlight the emergence of resistance to antibiotics and antibacterials.
  • To emphasize the genetic links between antibiotic and antibacterial resistance.
  • To advocate for education on the rational use of antimicrobial drugs.

Main Methods:

  • Review of historical antibiotic and antibacterial usage patterns.
  • Analysis of genetic correlations between different types of antimicrobial resistance.
  • Dissemination of educational materials through the Alliance for the Prudent Use of Antibiotics (APUA) website and Reservoirs of Antibiotic Resistance (ROAR).

Main Results:

  • Significant increase in antibiotic and antibacterial resistance linked to expanded use.
  • Identification of genetic connections between resistance to antibiotics and antibacterials.
  • Establishment of APUA as a global platform for antimicrobial stewardship education.

Conclusions:

  • Prudent use of antibiotics and antibacterials is essential to preserve their efficacy.
  • Public and professional education is key to combating antimicrobial resistance.
  • Maintaining a balanced microbial ecosystem is vital for human survival and health.

Related Concept Videos

Antibiotic Selection00:57

Antibiotic Selection

Overview
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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...
Microbiota Modulation by Antibiotics01:21

Microbiota Modulation by Antibiotics

Antibiotics have revolutionized modern medicine by saving countless lives from bacterial infections. However, their widespread use has inadvertently harmed the delicate balance of the human gut microbiota. The gut microbiota, a complex community of bacteria, archaea, viruses, and fungi, plays a vital role in regulating metabolism, immune responses, and maintaining intestinal health. Antibiotics, especially broad-spectrum types, disrupt this ecosystem by eradicating both harmful and beneficial...
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...