Climatic factors influencing dengue incidence in an epidemic area of Nepal

被引：34
作者：
Tuladhar, Reshma [1 ,2 ]
Singh, Anjana [1 ]
Varma, Ajit [2 ]
Choudhary, Devendra Kumar [2 ]
机构：
[1] Tribhuvan Univ, Cent Dept Microbiol, Kathmandu, Nepal
[2] Amity Univ, Amity Inst Microbial Technol, Noida, UP, India
来源：
BMC RESEARCH NOTES | 2019年 / 12卷 / 1期
关键词：
Dengue; Maximum temperature; Minimum temperature; Negative binomial model; Rainfall; Relative humidity;
D O I：
10.1186/s13104-019-4185-4
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Objective: Geographic expansion of dengue incidence has drawn a global interest to identify the influential factors that instigate the spread of this disease. The objective of this study was to find the environmental factors linked to dengue incidence in a dengue epidemic area of Nepal by negative binomial models using climatic factors from 2010 to 2017. Results: Minimum temperature at lag 2 months, maximum temperature and relative humidity without lag period significantly affected dengue incidence. Rainfall was not associated with dengue incidence in Chitwan district of Nepal. The incident rate ratio (IRR) of dengue case rise by more than 1% for every unit increase in minimum temperature at lag 2 months, maximum temperature and relative humidity, but decrease by .759% for maximum temperature at lag 3 months. Considering the effect of minimum temperature of previous months on dengue incidence, the vector control and dengue management program should be implemented at least 2 months ahead of dengue outbreak season.
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页数：7
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