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Declining incidence of imported malaria in the Netherlands, 2000-2007

BACKGROUND: To describe the epidemiology and trends of imported malaria in the Netherlands from 2000 through 2007. METHODS: Based on national surveillance data regarding all reported infections of imported malaria, diagnosed 2000 through 2007, incidence and trends of imported malaria in the Netherla...

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Autores principales: van Rijckevorsel, Gini GC, Sonder, Gerard JB, Geskus, Ronald B, Wetsteyn, Jose CFM, Ligthelm, Robert J, Visser, Leo G, Keuter, Monique, van Genderen, Perry JJ, van den Hoek, Anneke
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2988037/
https://www.ncbi.nlm.nih.gov/pubmed/21029424
http://dx.doi.org/10.1186/1475-2875-9-300
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author van Rijckevorsel, Gini GC
Sonder, Gerard JB
Geskus, Ronald B
Wetsteyn, Jose CFM
Ligthelm, Robert J
Visser, Leo G
Keuter, Monique
van Genderen, Perry JJ
van den Hoek, Anneke
author_facet van Rijckevorsel, Gini GC
Sonder, Gerard JB
Geskus, Ronald B
Wetsteyn, Jose CFM
Ligthelm, Robert J
Visser, Leo G
Keuter, Monique
van Genderen, Perry JJ
van den Hoek, Anneke
author_sort van Rijckevorsel, Gini GC
collection PubMed
description BACKGROUND: To describe the epidemiology and trends of imported malaria in the Netherlands from 2000 through 2007. METHODS: Based on national surveillance data regarding all reported infections of imported malaria, diagnosed 2000 through 2007, incidence and trends of imported malaria in the Netherlands were estimated. Travellers statistics were used to estimate incidence, and data on malaria chemoprophylaxis prescriptions were used to estimate the number of unprotected travellers. RESULTS: Importation of malaria to the Netherlands is declining even as more travellers visit malaria-endemic countries. On average, 82% were acquired in sub-Saharan Africa, and 75% were caused by Plasmodium falciparum. The overall incidence in imported falciparum malaria fell from 21.5 to 6.6/10,000 of unprotected travellers. The percentage of unprotected travellers rose from 47% to 52% of all travellers. The incidence of imported falciparum infections is greatest from Middle and West Africa, and decreased from 121.3 to 36.5/10,000 travellers. The import of malaria from this region by immigrants visiting friends and relatives (VFR) decreased from 138 infections in 2000, to 69 infections in 2007. CONCLUSION: The annual number of imported malaria shows a continuing declining trend, even with an increasing number of travellers visiting malaria endemic countries. VFR import less malaria than previously, and contribute largely to the declining incidence seen. The decline is not readily explained by increased use of chemoprophylaxis and may reflect a reduced risk of infection due to decreasing local malaria transmission as observed in some malaria endemic areas. Nevertheless, the increasing number of unprotected travellers remains worrisome.
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spelling pubmed-29880372010-11-19 Declining incidence of imported malaria in the Netherlands, 2000-2007 van Rijckevorsel, Gini GC Sonder, Gerard JB Geskus, Ronald B Wetsteyn, Jose CFM Ligthelm, Robert J Visser, Leo G Keuter, Monique van Genderen, Perry JJ van den Hoek, Anneke Malar J Research BACKGROUND: To describe the epidemiology and trends of imported malaria in the Netherlands from 2000 through 2007. METHODS: Based on national surveillance data regarding all reported infections of imported malaria, diagnosed 2000 through 2007, incidence and trends of imported malaria in the Netherlands were estimated. Travellers statistics were used to estimate incidence, and data on malaria chemoprophylaxis prescriptions were used to estimate the number of unprotected travellers. RESULTS: Importation of malaria to the Netherlands is declining even as more travellers visit malaria-endemic countries. On average, 82% were acquired in sub-Saharan Africa, and 75% were caused by Plasmodium falciparum. The overall incidence in imported falciparum malaria fell from 21.5 to 6.6/10,000 of unprotected travellers. The percentage of unprotected travellers rose from 47% to 52% of all travellers. The incidence of imported falciparum infections is greatest from Middle and West Africa, and decreased from 121.3 to 36.5/10,000 travellers. The import of malaria from this region by immigrants visiting friends and relatives (VFR) decreased from 138 infections in 2000, to 69 infections in 2007. CONCLUSION: The annual number of imported malaria shows a continuing declining trend, even with an increasing number of travellers visiting malaria endemic countries. VFR import less malaria than previously, and contribute largely to the declining incidence seen. The decline is not readily explained by increased use of chemoprophylaxis and may reflect a reduced risk of infection due to decreasing local malaria transmission as observed in some malaria endemic areas. Nevertheless, the increasing number of unprotected travellers remains worrisome. BioMed Central 2010-10-28 /pmc/articles/PMC2988037/ /pubmed/21029424 http://dx.doi.org/10.1186/1475-2875-9-300 Text en Copyright ©2010 van Rijckevorsel et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
van Rijckevorsel, Gini GC
Sonder, Gerard JB
Geskus, Ronald B
Wetsteyn, Jose CFM
Ligthelm, Robert J
Visser, Leo G
Keuter, Monique
van Genderen, Perry JJ
van den Hoek, Anneke
Declining incidence of imported malaria in the Netherlands, 2000-2007
title Declining incidence of imported malaria in the Netherlands, 2000-2007
title_full Declining incidence of imported malaria in the Netherlands, 2000-2007
title_fullStr Declining incidence of imported malaria in the Netherlands, 2000-2007
title_full_unstemmed Declining incidence of imported malaria in the Netherlands, 2000-2007
title_short Declining incidence of imported malaria in the Netherlands, 2000-2007
title_sort declining incidence of imported malaria in the netherlands, 2000-2007
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2988037/
https://www.ncbi.nlm.nih.gov/pubmed/21029424
http://dx.doi.org/10.1186/1475-2875-9-300
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