How does Ghost interact with Kog'Maw's passive?

If I'm playing as Kog'Maw:

• Can I Ghost after I die to run faster before I explode?
• If I'm already Ghosted when I die, is my corpse still under the effect of Ghost for the remainder of its duration?

Solution 1:

They changed it in a patch; now, "zombie" champions lose all their buffs and debuffs. I could not find the patch in question.

Here is a post asking a similar question.

Presently, Kog'Maw receives the speed boost over time from his passive, but Ghost will instantly vanish from the buff bar.

Solution 2:

He indeed keeps all mouvement speed bonus / malus after he dies. Meaning it works with ghost, but you also keep all slows that had been put on you.

Conclusion : Ghost + Death = keep ghost during passiv !

EDIT : With the recent patches, ghost doesn't work anymore with any zombie State. Meaning it will instantly vanish as soon as Kog "dies the first time". The same applies for all buffs and debuffs. Also, Kog cannot be target in zombie form.