Related Experiment Videos
Bugs for the next century: the issue of antibiotic resistance
1Department of Infectious Diseases, Communicable Disease Centre, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433.
Objective:
To address the issue of emerging antibiotic resistance and examine which organisms will continue to pose problems in the new century.
Methods:
Review of articles pertaining to bacteria recognised for increasing resistance.
Results:
Changing resistance patterns are correlated with patterns of antibiotic use. This results in fewer effective drugs against "old" established bacteria e.g. gram-positives such as Streptococcus pneumoniae and Staphylococcus aureus. Resistance in gram-negative bacteria is also steadily increasing. Nosocomial gram-negative bacteria are capable of many different resistance mechanisms, often rendering them multiply-resistant. Antibiotic resistance results in morbidity and mortality from treatment failures and increased health care costs.
Conclusion:
Despite extensive research and enormous resources spent, the pace of drug development has not kept up with the development of resistance. As resistance spreads, involving more and more organisms, there is concern that we may be nearing the end of the antimicrobial era. Measures that can and should be taken to counter this threat of antimicrobial resistance include co-ordinated surveillance, rational antibiotic usage, better compliance with infection control and greater use of vaccines.
Insights
Antibiotic resistance is a growing threat, with increasing resistance in both gram-positive and gram-negative bacteria. Urgent measures are needed to combat this crisis and preserve the effectiveness of antimicrobial drugs.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Antibiotic resistance is an escalating global health concern.
- The development of resistance outpaces novel drug discovery.
Purpose of the Study:
- To identify key organisms contributing to emerging antibiotic resistance.
- To examine the trajectory of antibiotic resistance into the 21st century.
Main Methods:
- Literature review of scientific articles.
- Focus on bacteria exhibiting increasing resistance patterns.
Main Results:
- Resistance correlates with antibiotic usage patterns.
- Gram-positive bacteria (e.g., Streptococcus pneumoniae, Staphylococcus aureus) show evolving resistance.
- Gram-negative bacteria, particularly nosocomial strains, display increasing and multi-drug resistance.
- Treatment failures due to antibiotic resistance lead to increased morbidity, mortality, and healthcare costs.
Conclusions:
- Drug development lags behind resistance emergence.
- A potential end to the antimicrobial era is a significant concern.
- Coordinated surveillance, rational antibiotic use, infection control, and vaccination are crucial countermeasures.