Of course China is covering things up. The actual death count is over 40,000.
The real conspiracy and cover up is about why some countries were badly affected, and other countries not. Ecuador reports hundreds dead, but the real death count is in the thousands. Nicaragua has only one reported death. Countries like the US and India which have a low death rate are doing everything they can to make it look like it is very serious, and places that have it bad are trying to lower the reported numbers of dead.