Despite the lockdown Italian numbers keep soaring, then it's obvious something is not quite right in the Chinese numbers.
Fake numbers or not, there are even worse cases, countries that are letting this spread citing "heard immunity" and are not even testing. Sweden, Netherlands etc. At least in China people are still taking precautions despite their government's claims.
In Italy they didng took it serious in early days. Restaurants, parks, beaches were full of people. Lockdown is to avoid spread those who already got it will have to get treatment.