Coronavirus origin

Coronavirus  can’t be stopped by interstate borders. It is already noted in 196 states. And two months ago it was only in one. The rate of infection is more than sufficient reason to take comprehensive measures.
In China, the virus has declined. The epidemiological situation in the country is normalizing. This suggests that the measures taken by the state are effective.
The question arises. What have the Chinese done that Europeans can’t repeat to stop the coronavirus?

The Western media quickly took the stage and laid out the official narrative for the outbreak of the new coronavirus which appeared to have begun in China, claiming it to have originated with animals at a wet market in Wuhan.
In fact the origin was for a long time unknown but it appears likely now, according to Chinese and Japanese reports, that the virus originated elsewhere, from multiple locations, but began to spread widely only after being introduced to the market.