The Hot Zone
How did Geisbert know the cells were sick in the flask? What did they look like?
the hot zone
part 2
the hot zone
part 2
From the text:
Preston, Richard (2012-03-14). The Hot Zone: The Terrifying True Story of the Origins of the Ebola Virus (pp. 181-182). Knopf Doubleday Publishing Group. Kindle Edition.