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Updated: Jun 19, 2026
Antibiotic Efficacy Testing in an Ex vivo Model of Pseudomonas aeruginosa and Staphylococcus aureus Biofilms in the Cystic Fibrosis Lung
Published on: January 22, 2021
Insights
Early-life antibiotic exposure, especially broad-spectrum antibiotics, is linked to increased childhood asthma risk. Careful consideration of antibiotic benefits versus risks is crucial for pediatric prescribing.
Area of Science:
- Pediatric medicine
- Epidemiology
- Immunology
Background:
- Antibiotic use in infants is common, even for non-respiratory infections.
- Emerging evidence suggests a potential link between early antibiotic exposure and later asthma development.
Purpose of the Study:
- To investigate the association between antibiotic administration in the first year of life and the frequency of asthma in children.
- To evaluate the impact of antibiotic spectrum and dosage on this association.
Main Methods:
- A longitudinal cohort study followed children to age 7.
- A meta-analysis synthesized findings from multiple epidemiological studies.
- Analysis considered antibiotic type, spectrum, and number of courses.
Main Results:
- The cohort study found increased asthma frequency in children treated with antibiotics in their first year, with risk escalating with more courses and broad-spectrum agents.
- The meta-analysis indicated a doubled asthma risk with first-year antibiotic use, though prospective studies showed no significant link.
- Risk was dose-dependent and associated with broad-spectrum antibiotic use.
Conclusions:
- Antibiotic exposure in early life may increase the risk of developing childhood asthma.
- Prescribing decisions should balance potential benefits against risks, favoring narrow-spectrum antibiotics when appropriate.
Abstract:
(1) A longitudinal cohort study showed an increase in the frequency of asthma among 7-year-old children who were treated with antibiotics during the first year of life, even when treatment was for non-respiratory tract infections. The risk increased with the number of antibiotic courses with the use of broad-spectrum antibiotics; (2) A meta-analysis of epidemiological studies showed that the risk of asthma doubled when antibiotics were administered during the first year of life. No such link was found in the combined analysis of the few existing prospective studies; (3) In practice, the likely benefits and risks should be carefully weighed before prescribing an antibiotic to a child. A narrow-spectrum antibiotic should be chosen whenever possible.
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