title: The arrival, establishment and spread of exotic diseases: patterns and predictions.
abstract: The impact of human activities on the principles and processes governing the arrival, establishment and spread of exotic pathogens is illustrated by vector-borne diseases such as malaria, dengue, chikungunya, West Nile, bluetongue and Crimean-Congo haemorrhagic fevers. Competent vectors, which are commonly already present in the areas, provide opportunities for infection by exotic pathogens that are introduced by travel and trade. At the same time, the correct combination of environmental conditions (both abiotic and biotic) makes many far-flung parts of the world latently and predictably, but differentially, permissive to persistent transmission cycles. Socioeconomic factors and nutritional status determine human exposure to disease and resistance to infection, respectively, so that disease incidence can vary independently of biological cycles.
authors.affiliation: Oxford Tick Research Group, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK. sarah.randolph@zoo.ox.ac.uk
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Randolph
authors.forename: David J
authors.initials: DJ
authors.lastname: Rogers
mesh_terms: D018354:Alphavirus Infections / Q000453:epidemiology / Q000635:transmission; D000818:Animals; D005075:Biological Evolution; D001819:Bluetongue / Q000453:epidemiology / Q000635:transmission; D065632:Chikungunya Fever; D002980:Climate; D021821:Communicable Diseases, Emerging / Q000453:epidemiology* / Q000635:transmission*; D003715:Dengue / Q000453:epidemiology / Q000635:transmission; D004199:Disease Vectors; D058872:Epidemics; D006479:Hemorrhagic Fever, Crimean / Q000453:epidemiology / Q000635:transmission; D006801:Humans; D008288:Malaria / Q000453:epidemiology / Q000635:transmission; D014195:Travel; D014901:West Nile Fever / Q000453:epidemiology / Q000635:transmission