Fog and Malaria: A Yearly Delay in Impact
Author Information
Author(s): Tian Linwei, Bi Yan, Ho Suzanne C, Liu Wenjie, Liang Song, Goggins William B, Chan Emily YY, Zhou Shuisen, Sung Joseph JY
Primary Institution: Chinese University of Hong Kong
Hypothesis
How do weather factors, particularly fog, affect malaria transmission in Mengla County, China?
Conclusion
Fog day frequency is a significant predictor of malaria incidence, with a one-year delayed effect.
Supporting Evidence
- Fog day frequency in October positively affects malaria incidence in May of the following year.
- Minimum and maximum temperatures are also significant predictors of malaria incidence.
- The study used ARIMA models to analyze weather factors and malaria incidence over nearly three decades.
Takeaway
Fog can help mosquitoes breed, which means more malaria cases can happen later. This study found that fog from one year can affect malaria the next year.
Methodology
Ecological time-series analysis using ARIMA models on data from 1971 to 1999.
Limitations
Malaria cases were pooled without detailed data on Plasmodium species, and potential confounding factors were not adjusted for.
Participant Demographics
Population of Mengla County, approximately 0.2 million residents.
Statistical Information
P-Value
p = 0.021 for fog day frequency
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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