The World Health Organization has warned that more early cases of coronavirus are likely to be uncovered in countries around the globe.
It comes after a French doctor said he had tested a sample from a patient diagnosed with pneumonia on 27 December last year, and found it was positive for coronavirus.
The development means Covid-19 may have arrived in Europe almost a month earlier than previously thought.
Speaking in Geneva, WHO spokesperson Christian Lindmeier said he was “not surprised” by the news.
He called on other countries to reassess their medical records from late 2019 to help to build a “newer and clearer picture” of the pandemic.