[EternalHope]

It is notable that multiple persons from flights with passengers originating in china/hk with sars are not being reported ill. This disease is apparently a CLOSE proximity/fluid transmission issue.

Passenger exposure on flights does not seem to be a common thing, although there are documented cases where it has happened.

[aristeides]

There's no conclusive evidence the virus has airborne transmission. (If it's waterborne, it can still be spread over a limited distance through sputum and saliva droplets.) If there's any airborne transmission at all, it seems to be very rare.