The novel coronavirus may have first passed to humans somewhere in southern China months before the outbreak in the city of Wuhan, a new study found, cutting against widely held theories about the origins of the pandemic. Mapping a “network” of coronavirus genomes and tracing mutations over time, a team of researchers led by a Cambridge University geneticist determined the first Covid-19 infection may have come as early as September in a region south of Wuhan, noting the pathogen could have been carried by humans well before it mutated into a more lethal form.
“The virus may have mutated into its final ‘human-efficient’ form months ago, but stayed inside a bat or other animal or even human for several months without infecting other individuals,” geneticist Peter Forster told the South China Morning Post. He leads the ongoing yet to be peer-reviewed research, recently published in the Proceedings of the National Academy of Sciences journal.
Then, it started infecting and spreading among humans between September 13 and December 7, generating the network we present in [the study].
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