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Geneva: All hypotheses on how the Covid-19 pandemic began remain on the table, the World Health Organization said Thursday following an inconclusive investigation into the global catastrophe's origins.
"As things stand, all hypotheses must remain on the table, including zoonotic spillover and lab leak," WHO chief Tedros Adhanom Ghebreyesus told a press conference, adding that much of the required information requested, notably from China, had not been provided.