Anxiety levels in Asian countries over the new coronavirus are high, a new survey shows, although they do not necessarily correlate with the number of cases reported locally. But regardless of their level of concern, the vast majority of respondents want a blanket ban on flights from mainland China.The Covid-19 disease, caused by a new coronavirus that was first detected in the Chinese city of Wuhan, has infected more than 75,000 people around the world, killing more than 2,000.“The desire for…