I Be Illin'

I've been invaded.
Could be something I ate?
Something got deep inside me
and chose to replicate.

You don't have a nucleus,
but I still respect you.
You make my throat scratchy
and loosen my poo.

You tighten my stomach,
and make me want to hurl,
and you killed all the martians
in War of the Worlds.

How can I defeat you?
I feel such dismay!
I'm so much bigger
than DNA or RNA!

I have a solution
I know what I'll do!
I'll dispatch Killer T Cells,
and then pity da fools!

I fight you, I fight you!
I know I shall win!
Cus, I'm still undefeated
against bio-pathogens!