Actually, Thomas Eric Duncan is dead because he came in sufficiently close contact with the Ebola virus, and it was fatal as it is for most who contract it.

It's this healthcare worker, and the likely other contacts who are not yet symptomatic, who are sick and statistically going to die who are dead because he lied.

And those who expect people to tell the truth on such forms, which flies in the face of all we know about human nature.