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It is unclear how the arrival of winter in the southern hemisphere will impact the novel coronavirus, the head of the World Health Organisation's emergencies programme Mike Ryan said.
“We don't know how the coronavirus is going to be,” Ryan said during a virtual press conference.
“Right now, we have no data to suggest that the virus will behave more aggressively or transmit more efficiently or not,” he said, adding that the impact of summer's arrival in the northern hemisphere was also unclear.
