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.
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