They are dealing with their first growing outbreak in the city of Shijhazhuang. This has had roads in and out blocked to it.  People are in lockdown under severe restrictions for first time since May, and controlled  entry to homes.  

They have hinted these outbreaks are growing, they come ahead of New Year Celebrations and it may not be the right time to entertain WHO.

https://www.bbc.co.uk/news/amp/world-asia-china-55576961ovid: China places 11m under lockdown after outbreak in northern city - BBC News

Covid: China places 11m under lockdown after outbreak in northern city

China has placed 11 million people in the northern city of Shijiazhuang under lockdown after more than 100 new Covid cases were confirmed there.

Residents are banned from leaving the city and schools have also been closed.

More than 5,000 testing sites have been set up so every resident can be tested.

The new figures are the highest China has seen in more than five months. The country has been able to contain such outbreaks by immediately taking tough action.

This has involved consistently using mass testing when new clusters of cases appear, even if they seem relatively small.

Hebei province, where Shijiazhuang is located, reported 120 new cases on Thursday and all but one of those infections was in the city. Elsewhere in the country, 22 new cases were confirmed. 

The virus was first detected in the Chinese city of Wuhan in late 2019 before spiralling into a global pandemic.

Thursday's lockdown comes just weeks ahead of Chinese New Year, a time when people in China travel en masse to spend the holiday with their famiies

But residents in the Gaocheng district of Shijiazhuang, considered to be the epicentre of the outbreak, are now not allowed to leave their local area. Other residents are banned from leaving the city.

Coronavirus: Chinese city in lockdown as Hebei province has biggest outbreak in months