My simple layman's mind agrees with you. Looks like high end 4, low end 5. And keeping in mind that we don't know what the heck is going on in China. If there are a lot of people sick with the A.F. in China, then it could - just could - be the high end of 5 or the very beginning of 6. All depends on what's happening there.
Wouldn't it be thoughtful of them to tell us what's going on?
With China gearing up to close labs and stop sending samples and cutting off news, I guess I just don't see them being responsible world citizens, here.