Note that most virulent or velogenic virus strains will give intracerebral pathogenicity (ICP) index results that approach the maximum score of 2.0, whereas lentogenic (low pathogenic) strains will give values close to 0.0 (ProMED-mail 2005i).Geographical rangeNative range: vND is endemic in many parts of the world including countries in Asia, the Middle East, Africa, and Central and South America