Antimicrobial Resistance and Respiratory Infections
Allison K Guitor1, Gerard D Wright1
1Department of Biochemistry and Biomedical Sciences, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada.
Chest
|July 1, 2018
Summary
Antibiotic resistance threatens modern medicine, with bacteria employing diverse mechanisms like efflux and target alteration to evade drugs. Understanding these resistance strategies in respiratory pathogens is crucial for effective treatment and preventing further spread.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Antibiotics have been vital in medicine since the early 20th century.
- Bacterial resistance to antibiotics is a growing global threat.
- Resistance mechanisms include efflux, reduced permeability, target alteration, and drug modification.
Purpose of the Study:
- To review the mechanisms of antibiotic resistance in common respiratory pathogens.
- To highlight the spread of resistance determinants and their impact on treatment.
- To emphasize the importance of surveillance and diagnostics in combating antibiotic resistance.
Main Methods:
- Review of established and emerging antibiotic resistance mechanisms.
- Identification of key respiratory pathogens frequently exhibiting resistance.
- Discussion of genetic transfer and environmental acquisition of resistance.
Main Results:
- Pathogens like Streptococcus pneumoniae, Haemophilus influenzae, Pseudomonas aeruginosa, and Mycobacterium tuberculosis often show multi-drug resistance.
- Well-characterized mechanisms like β-lactamases are widespread.
- Emerging resistance genes, such as mcr-1 for colistin, pose a significant threat.
Conclusions:
- Understanding resistance mechanisms in respiratory pathogens is essential.
- Surveillance and molecular characterization of resistance are key to drug discovery and stewardship.
- Rapid diagnostics combined with knowledge of resistance can reduce treatment failures and curb resistance spread.
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