Johns Hopkins University has a dashboard showing the number of cases from other provinces. My understanding is that there are two other provinces with almost 900 cases. There are a number of other provinces with over 500 cases. That's gone up pretty dramatically over the last couple of days, from when it was almost half that number.
As we remember, there's a quarantine period of up to two weeks, so these numbers are going to go up even higher. Have you considered possibly implementing the same provisions regarding all passengers coming from China, with the idea that perhaps China has done a good job of barring the door but the horse may have bolted?