摘要：A degree-day (DD) model of West Nile virus capable of forecasting real-time transmission risk in the continental United States of America up to one week in advance using a 50-km grid is available online at https://sites.google.com/site/arbovirusmap/.Daily averages of historical risk based on temperatures for 1994-2003 are available at 10- km resolution.Transmission risk maps can be downloaded from 2010 to the present.The model can be adapted to work with any arbovirus for which the temperature-related parameters are known, e.g.Rift Valley fever virus.To more effectively assess virus establishment and transmission, the model incorporates “compound risk” maps and forecasts, which includes livestock density as a parameter.
关键词：West Nile virus; Rift Valley fever virus; transmission risk; early warning system; United States of America.
