Welcome to the forum.
You actually had 3 choices - Repair - delete and Place in Virus Chect.
Once deleted, it's gone. The safe choice is always to place the items into the
virus chest where it's safe, can't harm your computer and, if it turns out to be a false positive, can be recovered.
At this point, you could try a system restore or a restore from a back up provided you're making regular backups.