The Coronavirus started in China, and it hit them pretty bad. They had to close whole cities, suspend travels, and they won't recover from that over night. They will, but not over night.
You have to note that China is a big country, they close some cities but there are some cities or provinces that are open for business and that is Shanghai, their business capital, I read that they are still open for business even during the times when their number are spreading fast.
And also, if you ask China, they would not say that the virus originally came from their country, only other countries are accusing them, and in fact, they even accuse that it was China's biological weapon to destroy other countries and they China will rule.
https://www.aljazeera.com/news/2020/05/trump-threatens-action-china-covid-19-200503101120358.html