Government attempt at changing a vampire-ish virus into a weapon (bunkerbuster) goes horribly wrong. Little girl survives the tests, changed forever.
Nice easy pulp stuff. No, not exactly pulp, but I read it very fast. Why are so often things so thoroughly explained? So many words, so little meaning. And showing off with technical details that don't matter, too bad.
But it's not badly written. Just so-so.
I like the Californian references. Reading about Flagstaff, AZ. American details like that.