Impact of Drug Administration and Mosquito Nets on Lymphatic Filariasis in Uganda
Author Information
Author(s): Ashton Ruth A, Kyabayinze Daniel J, Opio Tom, Auma Anna, Edwards Tansy, Matwale Gabriel, Onapa Ambrose, Brooker Simon, Kolaczinski Jan H
Primary Institution: Malaria Consortium Africa, Kampala, Uganda
Hypothesis
Can long-lasting insecticidal nets (LLINs) reduce Wuchereria bancrofti transmission in areas with ongoing mass drug administration (MDA)?
Conclusion
The study observed a significant reduction in W. bancrofti infection in humans, but the contribution of LLINs to this decline remains unclear.
Supporting Evidence
- In 2007, 22.3% of schoolchildren were W. bancrofti antigen positive.
- By 2010, microfilaraemia prevalence fell to 0.4%.
- Universal coverage of mosquito nets was protective against W. bancrofti antigen.
Takeaway
This study looked at whether using special mosquito nets helps reduce a worm infection in people, and found that while the infection went down, it's hard to say how much the nets helped.
Methodology
An observational study with pre- and post-intervention surveys assessing W. bancrofti infection and mosquito net usage.
Potential Biases
Potential confounding factors related to previous MDA rounds and changes in sampling strategy may affect results.
Limitations
The study could not determine the individual contributions of MDA and LLINs to the reduction in LF transmission.
Participant Demographics
Participants included schoolchildren aged 6-16 years from seven villages in northern Uganda.
Statistical Information
P-Value
0.034
Confidence Interval
95% CI: 2.6-5.3%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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