protocol. And the bad news for the UK is that no one in Whitehall can master it.
In 2003, faced with the Sars epidemic, officials in Vietnam rapidly instituted a regime under which anyone entering the country looking a bit peaky was packed off to an isolation hospital. The combination of close surveillance and rigid isolation stopped the epidemic dead.
With bird flu, they did the same, swiftly introducing a programme of surveillance, mass vaccination of birds and culling in the worst affected areas.
Meanwhile, over in the UK, ministers are clucking about cost and manpower - precisely the same issues that led to the disastrous delays over the foot and mouth epidemic of 2001. The only decision they have made is to reject mass vaccination - just as Vietnam shows its crucial role in stemming an epidemic.
Forget birds carrying H5N1; the real threat to the UK is ministers doing sweet FA. 