This is a lousy book. Some Robin Cook novels are decent thrill rides with a bit of medical horror. Others are just outright bad, with paper thin characters doing incredibly stupid things for incredibly stupid reasons. This is one of the bad ones. Much just doesnt make any sense, and the main character is like a parody of a driven medical researcher. There are red herrings everywhere that are obviously red herrings because they pop up and then disappear.
There is even a serial killer who is introduced, and then pretty much dropped from the story. And yet I read this all the way through to the end. I dont know why.