what about:
I Am Legend - Richard Matheson
One of the most influential vampire novels of the 20th century, I Am Legend regularly appears on the "10 Best" lists of numerous critical studies of the horror genre. As Richard Matheson's third novel, it was first marketed as science fiction (for although written in 1954, the story takes place in a future 1976). A terrible plague has decimated the world, and those who were unfortunate enough to survive have been transformed into blood-thirsty creatures of the night. Except, that is, for Robert Neville. He alone appears to be immune to this disease, but the grim irony is that now he is the outsider. He is the legendary monster who must be destroyed because he is different from everyone else. Employing a stark, almost documentary style, Richard Matheson was one of the first writers to convince us that the undead can lurk in a local supermarket freezer as well as a remote Gothic castle. His influence on a generation of bestselling authors--including Stephen King and Dean Koontz--who first read him in their youth is, well, legendary. - amazon
The Day of the Triffids - John Wyndham
In 1951 John Wyndham published his novel The Day of the Triffids to moderate acclaim. Fifty-two years later, this horrifying story is a science fiction classic, touted by The Times (London) as having “all the reality of a vividly realized nightmare.”
Bill Masen, bandages over his wounded eyes, misses the most spectacular meteorite shower England has ever seen. Removing his bandages the next morning, he finds masses of sightless people wandering the city. He soon meets Josella, another lucky person who has retained her sight, and together they leave the city, aware that the safe, familiar world they knew a mere twenty-four hours before is gone forever.
But to survive in this post-apocalyptic world, one must survive the Triffids, strange plants that years before began appearing all over the world. The Triffids can grow to over seven feet tall, pull their roots from the ground to walk, and kill a man with one quick lash of their poisonous stingers. With society in shambles, they are now poised to prey on humankind. Wyndham chillingly anticipates bio-warfare and mass destruction, fifty years before their realization, in this prescient account of Cold War paranoia. amazon