Ports and Airports: Gateways to Vector-Borne Diseases in Portugal Mainland
Vector-borne diseases are transmitted to humans by mosquitos, sandflies, bugs, ticks, and other vectors. Some are re-transmitted between vectors, if the infected human has a new contact when his levels of infection are high. The vector is infected for lifetime and can transmit infectious diseases not only between humans but also from animals to humans. Some vector borne diseases are very disabling and globally account for more than one million deaths worldwide. The mosquitoes from the complex Culex pipiens sl. are the most abundant in Portugal, and we dispose in this moment of a data set from the surveillance program that has been carried on since 2006 across the country. All mosquitos’ species are included, but the large coverage of Culex pipiens sl. and its importance for public health make this vector an interesting candidate to assess risk of disease amplification. This work focus on ports and airports identified as key areas of high density of vectors. Mosquitoes being ectothermic organisms, the main factor for vector survival and pathogen development is temperature. Minima and maxima local air temperatures for each area of interest are averaged by month from data gathered on a daily basis at the national network of meteorological stations, and interpolated in a geographic information system (GIS). The range of temperatures ideal for several pathogens are known and this work shows how to use it with the meteorological data in each port and airport facility, to focus an efficient implementation of countermeasures and reduce simultaneously risk transmission and mitigation costs. The results show an increased alert with decreasing latitude, which corresponds to higher minimum and maximum temperatures and a lower amplitude range of the daily temperature.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124257Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1505
 J. S. Brownstein, H. Rosen, D. Purdy, J. R. Miller, M. Merlino, F. Mostashari and D. Fish, “Spatial analysis of West Nile Virus: rapid risk assessment of an introduced vector-borne zoonosis,” Vector Borne Zoonotic Diseases, vol. 2, no. 3, pp. 157-164, 2002.
 G. L. Hamer, U. D. Kitron, J. D. Brawn, S. R. Loss, M. O. Ruiz, T. L. Goldberg and E. D. Walker, “Culex pipiens (Diptera: Culicidae): A Bridge Vector of West Nile Virus to Humans,” J. Med. Entomology, vol. 45, no. 1, pp. 125-128, 2008.
 S. Kalluri, P. Gilruth, D. Rogers and M. Szczur, “Surveillance of arthropod vector-borne infectious diseases using remote sensing techniques: a review,” PloS Pathogens, vol. 3, no. 10, pp 1361-1371, 2007
 S. Paz and I. Albersheim, “Influence of warming tendency on Culex pipiens population abundance and on the probability of West Nile Fever outbreaks (Israeli case-study: 2001-2005),” EcoHealth, vol. 5, pp. 40-48, 2008
 T.-W. Chuang, M. B. Hildreth, D. L. Vanroekel and M. C. Wimberly, “Weather and land cover influences on mosquito populations in Sioux Falls, South Dakota,” J. Med. Entomol., vol. 48, no. 3, pp. 669-1679, 2011
 D. Fischer, S. M. Thomas, J. E. Suk, B. Sudre, A. Hess, N. B. Tjaden, C. Beierkuhnlein and J. C. Semenza, “Climate change effects on Chikungunya transmission in Europe: geospatial analysis of vector’s climatic suitability and virus’temperature requirements,” International Journal of Health Geographics, vol. 12, no. 51, 2013
 A. T. Ciota and L. D. Kramer, “Vector-virus interactions and transmission dynamics of West Nile virus,” Viruses, vol. 5, pp. 3021-3047, 2013
 E. B. Vinogradova, Culex pipiens pipiens mosquitoes: taxonomy, distribution, ecology, physiology, genetics, applied importance and control, Pensoft Publishers, Series Parasitologica, Sofia-Moscow, 250 pp., 2000
 M. W. Service, Medical entomology for students, Cambridge University Press, 302 pp., 2004.
 M. D. Bentley and J. F. Day, “Chemical ecology and behavioral aspects of mosquito oviposition,” Ann. Rev. Entomol., vol. 34, pp. 401-421, 1989
 C. Barker, B. Elridge and W. Reisen, “Seasonal abundance of Culex tarsalis and Culex pipiens complex mosquitoes (Diptera: Culicidae) in California,” J. Med. Entomology, vol. 47, no. 5, pp. 759-768, 2010.
 Instituto Nacional de Estatística, I. P., Estatísticas dos Transportes e Comunicações 2013, Lisboa-Portugal, ISBN 978-989-25-0275-5, 2014
 C. A. Sousa, M. Clairouin, G. Seixas, B. Viveiros, M. T. Novo, A. C. Silva, M. T. Escoval and A. Economopoulou, “Ongoing outbreak of dengue type 1 in the autonomous region of Madeira, Portugal: preliminary report,” Euro Surveill, vol. 17, no. 49, pii 20333, 2012
 R. López-Vélez and R. M. Moreno, “Cambio climatico en España y riesgo de enefermedades infecciosas y parasitarias transmitidas por artrópodos y roedores,” Rev. Esp. Salud Publica, vol. 79, pp. 177-190, 2005
 D. J. Dohm, M. L. O’Guinn and M. J. Turell, “Effect of environmental temperature on the ability of Culex pipiens (Diptera: Culicidae) to transmit West Nile virus,” J. Med. Entomol., vol. 39, no. 1, pp. 221-225, 2002
 J. I. Blanford, S. Blanford, R. G. Crane, M. E. Mann, K. P. Paaijmans, K. V. Schreiber and M. B. Thomas, “Implications of temperature variation for malaria parasite development across Africa,” Scientific Reports, vol. 3, 1300, DOI: 10.1038/srep01300, 2013
 A. R. Filipe, “Isolation in Portugal of West Nile virus from Anopheles maculipennis mosquitoes,” Acta Virol., vol. 16, no. 4, 361, 1972
 A. Benali, J. P. Nunes, F. B. Freitas, C. A. Sousa, M. T. Novo, P. M. Lourenço and J. C. Lima, “Satellite-derived estimation of environmental suitability for malaria vector development in Portugal,” Remote Sensing of Environment, vol. 1445, pp 116-130, 2014
 M. A. Johansson, N. Arana-Vizcarrondo, B. J. Biggerstaff and J. E. Staples, “Incubation periods of yellow fever virus,” Am. J. Trop. Med. Hyg., vol. 83, no. 1, pp. 183-188, 2010
 Climate Change 2001: Impacts, adaptation and Vulnerability, IPCC Third Assessment Report, chap. 9 - Human Health, Ed. J.J. McCarthy, O. F. Canziani, N. A. Leary, D. J. Dokken and K. S. White, 2001
 X. Zhang, L. Sun and M. G. Rossmann, “Temperature dependent conformational change of dengue virus,” Current Opinion in Virology, vol. 12, pp.109-112, 2015
 A. P. G. Almeida, Y. M. Gonçalves, M. T. Novo, C. A. Sousa, M. Melim and A. J. S. Gracio, “Vector monitoring of Aedes aegypti in the autonomous region of Madeira, Portugal,” Euro Surveill., vol.12, no. 46, pii 3311, 2007
 H. C. Osório, F. Amaro, L. Zé-Zé, S. Pardal, L. Mendes, R. Ventim, J. A. Ramos, S. Nunes, REVIVE workgroup and M. J. Alves, “Mosquito species distribution in mailand Portugal 2005-2008,” European Mosquito Bulletin, vol. 28, pp. 187-193, 2010
 L. Zé-Zé, P. Proença, H. C. Osório, S. Gomes, T. Luz, P. Parreira, M. Fevereiro and M. J. Alves, “Human case of West Nile neuroinvasive disease in Portugal, Summer 2015,” Euro Surveill, vol. 20, no. 38, pii 30024, 2015