The protagonist of this book is Phil D'Amato, the forensic scientist/detective for the NYPD. A cold is going around and a lot of people are taking a new antibiotic for it. Simultaneously, people are having short memory losses and a serial strangler starts attacking women. Phil thinks these might all be related and he talks to experts (bits of infodump) and makes several theories. His life and that of others become endangered and the pace of the novel accelerates until you're breathless.
I not only really recommend this, I ordered the book before it, The Silk Code, and the book after it, The Pixel Eye.