The Covid-19 pandemic may have started as early as October, according to a new joint study of its genetic make-up by researchers at University College London and the University of Reunion Island. The pathogen wreaking havoc on the world, known scientifically as SARS-CoV-2, is thought to have made the jump from its initial host to humans at some point between October 6 and December 11. The findings – based on analysis of more than 7,000 genome sequence assemblies collected from around the world since January – will be published in a forthcoming edition of scientific journal Infection Genetics and Evolution. Researchers studied the evolution of the mutations since they jumped to humans in order to work back their molecular clocks to a common starting point. Separately, Chinese government information, seen previously by the South China Morning Post, suggests one of the first patients to emerge was a 55-year-old resident of Hubei province on November 17. "Patient zero" has not yet been confirmed.
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