Replacing “scalpel” with the nearby synonym “blade” would be the most helpful strategy in determining the meaning of the word “scalpel”. The excerpt is from the book, The Hot Zone.
The Hot Zone is a reminder of how the Ebola virus originated, why it is so deadly and contagious, and our enormous vulnerability and inefficiency when it comes to fighting pandemics of all kinds. Richard Preston's version of the chilling true story of how he exposes the book is non-fiction about how researchers, locals, and governments battled one of the deadliest viruses known, the Ebola virus. The story ends with the author of the book visiting Kitum Cave and exploring what is still believed to be the home of Ebola's host. He mentioned that he learned to stay as safe as possible while writing about it.
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