TRANSBOUNDARY AND EMERGING DISEASES 12/02/17 Quantifying the potential pathways and locations of Rift Valley fever virus entry into the United States. 1 Introduction The epidemiological landscape continues to be altered by international movement and globalization facilitating the dispersal of pathogens worldwide (Hatcher, Dick, & Dunn, 2012; Tatem, 2006).
The impact of anthropogenic movement on vectorborne disease (arbovirus) systems was on display during fifteenth century yellow fever virus epidemics when Aedes aegypti [L.] mosquitoes reached the New World through ship traffic (Lounibos, 2002). The global invasion of West Nile virus (WNV), chikungunya virus (CHIKV) and Zika virus (ZIKV) into the Western Hemisphere in the past two decades suggests a more supportive landscape for vectorborne disease (arbovirus) dispersal (Fauci & Morens, 2016). Presumably, WNV reached the United States (USA) in 1999 when an infected mosquito was unintentionally transported by airplane to New York City (Bird & McElroy, 2016; Bogoch et al., 2016; Fauci & Morens, 2016; Lounibos, 2002; Powers, 2014). 1.1 Background 2 Materials and Methods 2.1 Movement data.
PLOS 23/09/16 Biologically Informed Individual-Based Network Model for Rift Valley Fever in the US and Evaluation of Mitigation Strategies. Abstract Rift Valley fever (RVF) is a zoonotic disease endemic in sub-Saharan Africa with periodic outbreaks in human and animal populations.
Mosquitoes are the primary disease vectors; however, Rift Valley fever virus (RVFV) can also spread by direct contact with infected tissues. The transmission cycle is complex, involving humans, livestock, and multiple species of mosquitoes. The epidemiology of RVFV in endemic areas is strongly affected by climatic conditions and environmental variables.
In this research, we adapt and use a network-based modeling framework to simulate the transmission of RVFV among hypothetical cattle operations in Kansas, US. Citation: Scoglio CM, Bosca C, Riad MH, Sahneh FD, Britch SC, Cohnstaedt LW, et al. (2016) Biologically Informed Individual-Based Network Model for Rift Valley Fever in the US and Evaluation of Mitigation Strategies. Editor: Jens H. Received: April 25, 2016; Accepted: August 29, 2016; Published: September 23, 2016 Introduction. American Association of Zoo Veterinarians Infectious Disease Committee Manual 2013 - Rift Valley Fever. APHIS USDA - OCT 2013 - DRAFT : RIFT VALLEY FEVER STANDARD OPERATING PROCEDURES: 1.OVERVIEW OF ETIOLOGY AND ECOLOGY. NATURE 04/12/13 The risk of Rift Valley fever virus introduction and establishment in the United States and European Union.
GEORGETOWN UNIVERSITY - 2014 - Dissertation en ligne : A Risk Assessment and Seir Model of Rift Valley Fever Virus in the State of Florida. Journal of the American Mosquito Control Association 29(2):133-137. 2013 Potential for Populations of Aedes j. japonicus to Tran. IGERT - MAI 2013 - The Risk of Rift Valley Fever Introduction into the USA. Hello Dr.
Kofinas, We used a variety of existing frameworks combined with our own unique analysis to determine the relative risk of RVF importation to airports in the US. We started with a map of endemic suitability for RVF in Africa (Clements et al., 2006) and a published model of airline flows (including up to three stops) from Africa to the US. (Huang et al., 2013) We then used the endemic suitability surface and known population densities (Afripop) to generate a map of relative risk of human RVF infection. Assuming that people are most likely to exit Africa via the closest airport, we formed Voronoi polygons around at each airport to partition the African continent.
AfriPop project Clements, A. Huang, Z., Wu, X., Garcia, A. PLOS 07/05/13 A Hierarchical Network Approach for Modeling Rift Valley Fever Epidemics with Applications in North America. Rift Valley fever is a vector-borne zoonotic disease which causes high morbidity and mortality in livestock.
In the event Rift Valley fever virus is introduced to the United States or other non-endemic areas, understanding the potential patterns of spread and the areas at risk based on disease vectors and hosts will be vital for developing mitigation strategies. Presented here is a general network-based mathematical model of Rift Valley fever. Given a lack of empirical data on disease vector species and their vector competence, this discrete time epidemic model uses stochastic parameters following several PERT distributions to model the dynamic interactions between hosts and likely North American mosquito vectors in dispersed geographic areas.
Spatial effects and climate factors are also addressed in the model. Figures Citation: Xue L, Cohnstaedt LW, Scott HM, Scoglio C (2013) A Hierarchical Network Approach for Modeling Rift Valley Fever Epidemics with Applications in North America. . K STATE UNIVERSITY - 2012 - Thèse en ligne : EXPERIENCE WITH THE UNITED STATES DEPARTMENT OF AGRICULTURE (USDA) CENTER FOR GRAIN. Geospatial Health 6(2), 2012, pp. 161-170 A temperature-limited assessment of the risk of Rift Valley fever transmission and est. ELSEVIER 10/10/11 A hierarchical network approach for modeling Rift Valley fever epidemics. Effects of Rift Valley Fever, United States. 12HartleyPPTonly.pdf (Objet application/pdf)