It may sound cruel, but once a zombie is detected, isolate it—fast! Zombies can rapidly and easily infect other local machines on the network, so once a zombie is found, you need to quarantine ...
In the original film, Murphy played Jim, a bicycle courier who wakes up from a coma to find that the UK has been hit by the "Rage" virus, which turns people into fast zombie-like creatures.
It's once again being directed by Danny Boyle, who directed the original 28 Days Later (from 2002), a horror classic featuring fast zombies that still remains a favorite amongst zombie fans.