Unusually, there has been more than double the typical number of winter flu-like illnesses for this time of year. Denmark reports a threefold increase in just five weeks, from 168 to 541 cases.
Unusually, there has been more than double the typical number of winter flu-like illnesses for this time of year. Denmark reports a threefold increase in just five weeks, from 168 to 541 cases.
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