There's something seriously wrong with NHS systems if this can cause this much carnage
Not really its a new variant on the samba worm, I would imagine that the entire NHS IT department is fully aware of the problem and warned anyone that will listen.
Most organisations would fall foul to this sort of attack, most organisations have old business critical systems running because there is no budget or appetite to update/remove them.
I have machines running windows 95 in my company, why? Because we have software that requires windows 95 to run. We know it's a gaping huge security hole but it's business critical and we, apparently, can't run the company without it.
Non-IT managers will always see IT as a cost until something goes wrong... then it's all the IT Departments fault anyway.
A stupid user can bring down a network.