Virus removal

[nihil]

Strictly speaking the virus is still there, and, as has been mentioned, it all depends on your AV settings and how it works.

If the AV uses a "secure deletion" method (that is, it overwrites the virus code) then the virus is gone as far as software recovery is concerned and only might be recoverable by destructive forensic methods.

I personally prefer the quarantine approach, as you can easily check which files you will have to replace with clean versions

EDIT:

Most antiviruses will either delete or quarantine anything they can't clean. As Wazz quite rightly observes this can often cause systems instability, which is why I always take the quarantine option until I have things sorted out.