OBJECTIVE To evaluate the influence of individual spatial units (ie, counties) on the epidemic spread of foot-and-mouth disease (FMD) virus. SAMPLE POPULATION 163 counties in Uruguay where there was an outbreak of FMD between April 23 and July 11, 2001. PROCEDURE A geographically referenced database was created, and the distance between counties (13,203 county pairs), road density of counti...

BACKGROUND Whooping cough is a communicable disease whose incidence has increased in recent years in some countries with vaccination. Since 1981, in Catalonia (Spain), cases must be reported to the Public Health Department. In 1997, surveillance changed from aggregated counts to individual report and the surveillance system was improved after 2002. Catalan public health is universal with equal ...

isfahan province is located in the center of iran and has arid and semi-arid climate. in recent years, water shortage has increased in this region and has affected crop production. wheat is one of the most important crops of the province. in the present research, an index (dei) has been developed for drought evaluation using long term climatic data through application of principle components an...

nosema is a genus of microsporidia, which have significant negative impacts on honeybees. the aim of this study is the epidemiological evaluation and molecular characterization of nosema spices in various counties of east-azerbaijan province (northwest of iran). 387 samples were collected from colonies maintained in various counties of east-azerbaijan province. samples after preparation were...

INTRODUCTION We compared the risk of diabetes for residents of Appalachian counties to that of residents of non-Appalachian counties after controlling for selected risk factors in states containing at least 1 Appalachian county. METHODS We combined Behavioral Risk Factor Surveillance System data from 2006 and 2007 and conducted a logistic regression analysis, with self-reported diabetes as th...