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BACKGROUND: An increasing proportion of malaria cases diagnosed in UK residents with a history of travel to malaria endemic areas are due to Plasmodium falciparum. METHODS: In order to identify travellers at most risk of acquiring malaria a proportional hazards model was used to estimate the risk of acquiring malaria stratified by purpose of travel and age whilst adjusting for entomological inoculation rate (EIR) and duration of stay in endemic countries. RESULTS: Travellers visiting friends and relatives and business travellers were found to have significantly higher hazard of acquiring malaria (adjusted hazard ratio (HR) relative to that of holiday makers 7.4, 95% CI 6.4-8.5, p < 0. 0001 and HR 3.4, 95% CI 2.9-3.8, p < 0. 0001, respectively). All age-groups were at lower risk than children aged 0-15 years. CONCLUSIONS: These estimates of the increased risk for business travellers and those visiting friends and relatives should be used to inform programmes to improve awareness of the risks of malaria when travelling.

Original publication

DOI

10.1186/1475-2875-13-298

Type

Journal article

Journal

Malar J

Publication Date

04/08/2014

Volume

13

Keywords

Adolescent, Adult, Africa South of the Sahara, Aged, Child, Child, Preschool, Endemic Diseases, Humans, Infant, Infant, Newborn, Malaria, Falciparum, Middle Aged, Plasmodium falciparum, Risk Factors, Travel Medicine, United Kingdom, Young Adult