After being quarantined, the World Health Organisation begin their inquiry into COVID-19 in Wuhan, China.
The virus first emerged in the Chinese city in late 2019 and the United States has accused China of hiding the extent of the outbreak.
The mission has been plagued by delays, concerns over access and bickering between China and the US, which has criticised the terms of the visit, under which Chinese experts conducted the first phase of research.
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