Intercontinental transmission and local demographic expansion of SARS-CoV-2.

ABSTRACT: The global outbreak of coronavirus disease 2019 (COVID-19) is greatly threatening the public health in the world. We reconstructed global transmissions and potential demographic expansions of severe acute respiratory syndrome coronavirus 2 based on genomic information. We found that intercontinental transmissions were rare in January and early February but drastically increased since late February. After world-wide implements of travel restrictions, the transmission frequencies decreased to a low level in April. We identified a total of 88 potential demographic expansions over the world based on the star-radiative networks and 75 of them were found in Europe and North America. The expansion numbers peaked in March and quickly dropped since April. These findings are highly concordant with e

SUBMITTER: Hu HY 

PROVIDER: S-EPMC8060534 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature