I apologize I missed this post and am only responding to it now. [quote]It was nether really explained if the flood infestation on and around Delta Halo was destroyed[/quote]Large swathes of Delta Halo were glassed by temporarily allied Jiralhanae and Sangheili fleets. [quote]Are there other infested ships drifting through space,[/quote]While it is entirely possible that there may have been Flood ships in slipspace during the firing of Halo 100,000 years ago, it seems unlikely that there is from that time or the conflict above Delta Halo. Well, technically there's one: The Spirit of Fire. [quote]or is it still under quarantine.[/quote]While it's no longer under quarantine, it is closely monitored by ONIRF Lisbon. Hopefully this answers your questions. Sorry if I missed any, your post was a bit jumbled.