Surveillance Methods for Schistosomiasis in China
Author Information
Author(s): Carlton Elizabeth J., Bates Michael N., Zhong Bo, Seto Edmund Y. W., Spear Robert C.
Primary Institution: University of California, Berkeley
Hypothesis
Can surveillance methods effectively detect the reemergence of schistosomiasis in regions of China?
Conclusion
Human and bovine schistosomiasis were widespread in regions where schistosomiasis had reemerged, but traditional surveillance methods were inadequate.
Supporting Evidence
- Human infections were detected in 35 of the 53 villages surveyed.
- Bovine infections were found in 23 villages.
- Traditional surveillance methods underestimated the number of villages with human infections.
Takeaway
This study looked at how to find schistosomiasis infections in people and animals in China. It found that many people were infected, but the usual ways to check for infections missed a lot.
Methodology
The study tested humans, cows, water buffalo, and snails for schistosomiasis, assessed snail densities, and analyzed regional surveillance records.
Potential Biases
Selection bias may have occurred due to oversampling of villages with known infections.
Limitations
The study did not account for all potential infections as participation varied and some high-risk groups were underrepresented.
Participant Demographics
Participants included residents aged 6 to 65 years from 53 villages, primarily farmers, with a majority having low educational attainment.
Statistical Information
P-Value
0.05
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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