Quoting: Anonymous Coward 78442634 There won't be any quarantines in the West, as long as the hospitals are managing the influx of patients.
After that point, anything is possible, but London won't be in a lock-down.
Some areas, in South and East London, might be actually be quarantined, because, well, those area are the most "diverse", if you catch my drift.
I lived in London for almost 3 years...traveling on daily basis across all London. Like any other major city, the underground system is overcrowded. ONE INFECTED person on Central Line at rush hour, and London is toast.
If London or other major capital in the West will ever reach the need for a total lock-down...the world is done for decades, if not more.
It will be the worst-case scenario.