State Department issues the highest advisory: ‘Do not travel to China’ due to coronavirus outbreak

I know that most of our U.S. carriers have suspended or cut their service to mainland China due to this, but WHY are the Chinese carriers still operating flights as normal, from mainland China to the U.S. Even non-stop flights directly from Wuhan to the U.S. are still operating no problem...

Does the U.S. not see this as a concern, given the Virus that has spread to every part of the country.

Am I missing something here? Can the U.S. not stop those flights?