Modeling the risk of malaria for travelers to areas with stable malaria transmission

被引:22
|
作者
Massad, Eduardo [1 ,2 ,3 ]
Behrens, Ronald H. [3 ]
Burattini, Marcelo N. [1 ,2 ]
Coutinho, Francisco A. B. [1 ,2 ]
机构
[1] Univ Sao Paulo, Sch Med, Dept Pathol, BR-05405000 Sao Paulo, Brazil
[2] LIM 01 HCFMUSP, BR-05405000 Sao Paulo, Brazil
[3] London Sch Hyg & Trop Med, Dept Epidemiol & Populat Hlth, London, England
基金
巴西圣保罗研究基金会;
关键词
YELLOW-FEVER; DENGUE;
D O I
10.1186/1475-2875-8-296
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Background: Malaria is an important threat to travelers visiting endemic regions. The risk of acquiring malaria is complex and a number of factors including transmission intensity, duration of exposure, season of the year and use of chemoprophylaxis have to be taken into account estimating risk. Materials and methods: A mathematical model was developed to estimate the risk of non-immune individual acquiring falciparum malaria when traveling to the Amazon region of Brazil. The risk of malaria infection to travelers was calculated as a function of duration of exposure and season of arrival. Results: The results suggest significant variation of risk for non-immune travelers depending on arrival season, duration of the visit and transmission intensity. The calculated risk for visitors staying longer than 4 months during peak transmission was 0.5% per visit. Conclusions: Risk estimates based on mathematical modeling based on accurate data can be a valuable tool in assessing risk/benefits and cost/benefits when deciding on the value of interventions for travelers to malaria endemic regions.
引用
收藏
页数:7
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