How this virus transferred from animals to humans is now "water under the bridge". What is now paramount is that infection has become person to person by way of being airborne from an infected individual.
Therefore, close proximity to others is where the risk of infection is at its greatest, and workplaces are where long period contact with others is at its highest.
The above is the reason the Chinese authorities have closed public transport, theatres and many workplaces etc in affected areas in an effort to reduce that high number close proximity association between persons.
The above is also being seen as the greatest risk to the UK, for it does not take any great vision to realise, by example, how this virus could drastically reduce the numbers of employees fit for work in any large food distribution centre and the ability of that centre to carry out operations.
I feel that it is not the number of deaths this infection has brought about is the great concern, for that seems to be low. It is, however, the effects this virus could cause in Britains infrastructure if large numbers become infected.
The above is the problem that China is having in attempting to keep its infrastructure and economy running in the present situation.