Effects of a community-based intervention bundle on household transmission of extended spectrum β-lactamase-producing Escherichia coli in rural Burkina Faso to target community-level drivers of antimicrobial resistance in sub-Saharan Africa: a cluster-randomised trial.
Raneem Aizouk, Yougbaré Sibidou, Daniel Valia et al.
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In 30 seconds
This cluster-randomised controlled trial in rural Burkina Faso evaluated a community-based intervention aimed at reducing household transmission of extended spectrum β-lactamase-producing Escherichia coli (ESBL-E). Among 1203 participants, the intervention did not significantly change ESBL-E acquisition risk in the first six months (HR 1.02), but showed a potential reduction in months 6-9 (HR 0.82).
Key findings
- At baseline, 57% of control and 49% of intervention group individuals tested positive for ESBL-E.
- Pre-intervention acquisition incidence rates were 3.8 per 100 person-days in the intervention group.
- The intervention was associated with a reduction in ESBL-E acquisition risk in months 6-9 (HR 0.82).
- Acquisition risk was higher in the rainy season (peak HR 1.73) and lower with improved sanitation (HR 0.77).
Why it matters
Understanding the impact of community-level interventions on antimicrobial resistance is crucial for developing effective public health strategies. This study highlights the importance of addressing both antibiotic use and environmental factors in combating ESBL-E transmission.