Related Experiment Video
Updated: Jun 13, 2025
06:00
Author Spotlight: Development of a Smartphone-Enhanced Paper-Based Device for Rapid Dengue NS1 Detection
Published on: January 26, 2024
1.2K
Demographic-environmental effect on dengue outbreaks in 11 countries
Anamul Haque Sajib1, Sabina Akter1, Goutam Saha2,3
1Department of Statistics, University of Dhaka, Dhaka, Bangladesh.
Plos One
|September 11, 2024
Summary
Mean temperature and urban population density positively correlate with dengue outbreaks, while maximum temperature, precipitation, and overall population density show a negative association. This research highlights key environmental and demographic drivers of dengue transmission.
Area of Science:
- Environmental Science
- Epidemiology
- Public Health
Background:
- Dengue outbreaks are a significant global health concern, particularly in tropical and temperate regions.
- Climate change, through altered temperature and rainfall patterns, is recognized as a factor exacerbating dengue transmission.
- Warmer temperatures accelerate mosquito development and disease-carrying capacity, while altered rainfall creates more breeding sites.
Purpose of the Study:
- To investigate the correlation between environmental and demographic factors and dengue fever dissemination.
- To analyze yearly data from 2000-2021 across 11 dengue-affected countries.
- To understand the impact of temperature, precipitation, and population variables on dengue transmission.
Main Methods:
- Utilized Poisson and negative binomial regression models for count data analysis.
- Employed histogram and pairwise correlation plots for initial data overview.
- Conducted Goodness-of-fit tests, t-tests, and diagnostic plots to validate models and identify outliers.
Main Results:
- Mean temperature and urban population (log-transformed) showed a positive correlation with dengue incidence.
- Maximum temperature, precipitation (log-transformed), and overall population density exhibited a negative correlation.
- Minimum temperature, rural population (log-transformed), and total population (log-transformed) did not show significant effects.
Conclusions:
- Demographic and environmental factors significantly influence dengue outbreaks in Asian countries.
- Mean temperature, maximum temperature, urban population, precipitation, and population density are key determinants of dengue incidence.
- Further research is recommended to explore factors like immunity, awareness, and vector control.
