The third part of the book is the most intense. I was at edge during the part when Rhonda's suit had a hole in it. It is terrifying that the littlest things could cost someone there life when dealing with these virus's. I wonder what happened to the virus's. You don't hear about them today, so where did they go? The fact that this is a true story is mind blowing. It's hard to believe people actually went through it.