Genome Study offers Clues into SARS-CoV-2 Evolution

摘要

A UCL Genetics Institute-led project that has analysed virus genomes from over 7,500 people infected with Covid-19, has identified close to 200 recurrent genetic mutations in the virus, highlighting how it may be adapting and evolving to its human hosts. Researchers found that a large proportion of the global genetic diversity of SARS-CoV-2 is found in all hardest-hit countries, suggesting extensive global transmission from early on in the epidemic and the absence of single 'Patient Zeroes' in most countries. The findings also further establish that the virus only emerged recently in late 2019, before quickly spreading across the globe.