{Eren will be immune to it, seeing that he's immune to Titan Bacteria in his own blood, sooooo...}

Armin smiled at her. "Hi!" he said cheerily.

Levi felt his mind starting to fuzz. He shook his head, sneezing.

Eren look at Levi. "Heichou?"

Levi mumbled something, but kept sneezing. "I... I just...." he looked up at Poison Ivy and smiled. "Well, hello...."