I just saw WWZ on On Demand
This book should have been a docudrama/anthology not a movie. The book was written as a history book chronicling how the world survived a zombie war.
This was made for tv. Have one main character going across the world chronicling the events of WWZ. Each episode be part interview part flashbacks.
I did like the fx the Isreal scene was fantastic. The scaling of the walls was scary. I was though bored with going through the WHO top scret lab. It reminded me of first Resident Evil movie but dull.
I cannot recall using diseases as an antieote in the book. I read the book when it came out so could be forgetting.