You should read the book. It's great.
Also, in the book, Nancy Jaxx IS the main character.
Regarding medical inaccuracies, one thing you have to remember is that we know a lot more about Ebola now than we did in 1980s. And the events of this series take place in 1989.
Obviously the show has been dramatized, but it really stays very close to the events as portrayed in the book. There are differences, but I wouldn't call them major differences, just a little dramatic spice.
Speaking of which, the "bagged monkeys" scene is very close to reality. Only it wasn't Nancy by herself who picked the monkeys up, but a small team of Army people. Someone really did deliver a bunch of bagged monkeys to them and their reaction really was basically WTF.
It may not be perfect, but I think the mini-series is pretty well done. Don't forget that it's dramatized entertainment, not a documentary.
I mostly read non-fiction these days.
It IS non-fiction. The story is true. Nancy Jaxx is a real person. The Reston breakout was a real Ebola breakout.
As said previously, based on reviews I've read the book is, "heavily fictionalized and full of medical inaccuracies." It's seems to be universally praised as well written and very entertaining, just not accurate. The TV series was definitely inaccurate based on interviews with people involved including Jaax and Jarhling.
The series is a dramatization of the book, not a documentary. Certain details are changed. It's not a documentary.
As for this about the book being "heavily fictionalized," the only criticisms I've seen are that Preston goes a little far in his descriptions of the way that Ebola ravages the body and that some people may read the book and get the impression that Ebola can be spread through the air, but the book doesn't actually say this.
If this is what you mean by "heavy fictionalization," then I'd say that's an improper characterization. Otherwise, you will need to cite some sources.