THE VIRUS chinese 2019-nCoV has been passed from bats to snakes, then to the man. The results of the genetic map, distributed in the Journal of Medical Virology by Wei Ji, Wei Wang, Xiaofang Zhao, Junjie Zai, and Xingguang Li, university of Beijing and Guangxi, reconstruct the transmission of the coronavirus identified for the first time in Wuhan, in the south-east of China, in December.