Chinese aviation regulators have blocked some flights of American Airlines Group Inc. and United Airlines Holdings from entry. And passengers from designated high-risk countries are set to be banned from transiting through Hong Kong International Airport, according to people familiar with the matter. Yvonne Man reports on "Bloomberg Daybreak: Australia." -------- Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness Instagram: https://www.instagram.com/bloombergbusiness/