The Pope is a Catholic.
Bears shit in the woods.
I like to combine those sayings and ask "does the pope shit in the woods?!". People always nod but then look confused.
The simple explanation is "where are you getting your numbers?". We simply cannot trust anything that China and the WHO tell us.
Also, China can respond aggressively because they don't care about their citizens who have zero rights.
There's evidence that they have many more missing people than they claim (from abandoned cell-phone subscriptions for instance)