Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?

Chikungunya virus disease (chikungunya) is a mosquito-borne infectious disease reported in at least 50 countries, mostly in the tropics. It has spread around the globe within the last two decades, with local outbreaks in Europe. The vector mosquito <i>Aedes albopictus</i> (Diptera, Culic...

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Main Authors: Nils Benjamin Tjaden, Yanchao Cheng, Carl Beierkuhnlein, Stephanie Margarete Thomas
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/13/6/1024
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author Nils Benjamin Tjaden
Yanchao Cheng
Carl Beierkuhnlein
Stephanie Margarete Thomas
author_facet Nils Benjamin Tjaden
Yanchao Cheng
Carl Beierkuhnlein
Stephanie Margarete Thomas
author_sort Nils Benjamin Tjaden
collection DOAJ
description Chikungunya virus disease (chikungunya) is a mosquito-borne infectious disease reported in at least 50 countries, mostly in the tropics. It has spread around the globe within the last two decades, with local outbreaks in Europe. The vector mosquito <i>Aedes albopictus</i> (Diptera, Culicidae) has already widely established itself in southern Europe and is spreading towards central parts of the continent. Public health authorities and policymakers need to be informed about where and when a chikungunya transmission is likely to take place. Here, we adapted a previously published global ecological niche model (ENM) by including only non-tropical chikungunya occurrence records and selecting bioclimatic variables that can reflect the temperate and sub-tropical conditions in Europe with greater accuracy. Additionally, we applied an epidemiological model to capture the temporal outbreak risk of chikungunya in six selected European cities. Overall, the non-tropical ENM captures all the previous outbreaks in Europe, whereas the global ENM had underestimated the risk. Highly suitable areas are more widespread than previously assumed. They are found in coastal areas of the Mediterranean Sea, in the western part of the Iberian Peninsula, and in Atlantic coastal areas of France. Under a worst-case scenario, even large areas of western Germany and the Benelux states are considered potential areas of transmission. For the six selected European cities, June–September (the 22th–38th week) is the most vulnerable time period, with the maximum continuous duration of a possible transmission period lasting up to 93 days (Ravenna, Italy).
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spelling doaj.art-b839cca148414580887f26405ad993822023-11-21T21:58:25ZengMDPI AGViruses1999-49152021-05-01136102410.3390/v13061024Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?Nils Benjamin Tjaden0Yanchao Cheng1Carl Beierkuhnlein2Stephanie Margarete Thomas3Department of Biogeography, University of Bayreuth, D-95447 Bayreuth, GermanyDepartment of Biogeography, University of Bayreuth, D-95447 Bayreuth, GermanyDepartment of Biogeography, University of Bayreuth, D-95447 Bayreuth, GermanyDepartment of Biogeography, University of Bayreuth, D-95447 Bayreuth, GermanyChikungunya virus disease (chikungunya) is a mosquito-borne infectious disease reported in at least 50 countries, mostly in the tropics. It has spread around the globe within the last two decades, with local outbreaks in Europe. The vector mosquito <i>Aedes albopictus</i> (Diptera, Culicidae) has already widely established itself in southern Europe and is spreading towards central parts of the continent. Public health authorities and policymakers need to be informed about where and when a chikungunya transmission is likely to take place. Here, we adapted a previously published global ecological niche model (ENM) by including only non-tropical chikungunya occurrence records and selecting bioclimatic variables that can reflect the temperate and sub-tropical conditions in Europe with greater accuracy. Additionally, we applied an epidemiological model to capture the temporal outbreak risk of chikungunya in six selected European cities. Overall, the non-tropical ENM captures all the previous outbreaks in Europe, whereas the global ENM had underestimated the risk. Highly suitable areas are more widespread than previously assumed. They are found in coastal areas of the Mediterranean Sea, in the western part of the Iberian Peninsula, and in Atlantic coastal areas of France. Under a worst-case scenario, even large areas of western Germany and the Benelux states are considered potential areas of transmission. For the six selected European cities, June–September (the 22th–38th week) is the most vulnerable time period, with the maximum continuous duration of a possible transmission period lasting up to 93 days (Ravenna, Italy).https://www.mdpi.com/1999-4915/13/6/1024chikungunyamosquito-borne diseasedengueecological niche modelepidemiological model<i>Aedes albopictus</i>
spellingShingle Nils Benjamin Tjaden
Yanchao Cheng
Carl Beierkuhnlein
Stephanie Margarete Thomas
Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
Viruses
chikungunya
mosquito-borne disease
dengue
ecological niche model
epidemiological model
<i>Aedes albopictus</i>
title Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
title_full Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
title_fullStr Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
title_full_unstemmed Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
title_short Chikungunya Beyond the Tropics: Where and When Do We Expect Disease Transmission in Europe?
title_sort chikungunya beyond the tropics where and when do we expect disease transmission in europe
topic chikungunya
mosquito-borne disease
dengue
ecological niche model
epidemiological model
<i>Aedes albopictus</i>
url https://www.mdpi.com/1999-4915/13/6/1024
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