Instruct: Classify the given Amazon review as either positive or negative.
Query: WHO IS JOHN CASE?

Whoever he may be, he ranks with Michel Creighton and Robin Cook. His mixture of fact with fiction gives his story both suspense and credibility. There really was an expedition to Norway to hunt for the virus. The 1918 flu was pandemic. My 90 year old grandmother lived through it and to her flu equals death. She would no sooner take a flu vaccine then I would an AIDS vaccine. Anyone who has worried about biological terroism should read this book. Lets just hope Saddam Hussain doesn't get hold of the copy. As for those who compain about this not being a "thriller" they must be addicted to gun battles and car chases. This is a psychological thriller based on the very real capabilities of anthrax brewing terrorists. If you want blood, gore and ridiculous story lines go back to Dean Koontz.