China has already demonstrated that this can be spread by asymptomatic carriers. Or that one can have the virus affecting the lungs, without symptoms. Including for example, a 10 year old boy from an infected family, no fever or anything, who had the characteristic "ground glass" appearance in his lung on X-ray.
Or the doctor who had never been to Wuhan, who caught the disease by sitting at a conference, next to a doctor who *had*.
Just about everyone who is infected could be a non-symptomatic carrier for an interval.
As I asked earlier this week, is there a difference between when someone becomes contagious and when they are symptomatic?
The only information I get is about each factor separately, and not how they are overlapped per case. If people are infectious after 24 hours, but don’t show symptoms for 2 to 14 days, then they will pass fever and cough screenings.
It’s actually starting to look better and better that they have a chance to contain it, but I still don’t think their motives are purely about public safety. Something else is mitigating the measures are being taken.