Evolution
The virus appears to have originated from its ancestral virus in the mid 1500s in the Indonesia-Malaysia region and evolved there into five different genotypes and spread across Asia. The mean evolutionary rate has been estimated to be 4.35×10(-4) (range: 3.4906×10(-4) to 5.303×10(-4)) nucleotide substitutions per site per year.
Read more about this topic: Japanese Encephalitis
Famous quotes containing the word evolution:
“The evolution of a highly destined society must be moral; it must run in the grooves of the celestial wheels.”
—Ralph Waldo Emerson (1803–1882)
“The evolution of humans can not only be seen as the grand total of their wars, it is also defined by the evolution of the human mind and the development of the human consciousness.”
—Friedrich Dürrenmatt (1921–1990)