We flew to Shanghai a couple of days ago, only about a 100 on the BA 777-200. I would have changed the plans but BAs announcements came out too late, we did however, cancel our plans for Shanghai and connected straight to Hanoi. The return is from Singapore, fingers crossed that the isolated cases there remain just that. What was interesting is that on our Vietnam Airlines flight the crew were permitted to wear masks whilst BA had neither provided nor allowed their own crew the same, albeit limited, protection.