Alliance for Pandemic Preparedness

January 31, 2020

Evolution and variation of 2019-novel coronavirus



  • A new phylogenetic study suggests that there may have been two different viral strains of 2019-nCoV circulating as early as a few months prior to the initial detection of the outbreak. Evidence also indicates that the Huanan seafood market at the center of early surveillance efforts may in fact not have been the primary starting point of the outbreak. 

Xiong et al. (Jan 30, 2020). Evolution and variation of 2019-novel coronavirus. Pre Print.