The President's Vampire by Christopher Farnsworth
In this action-packed thriller, agents of the United States battle the Other Side, whose warriors come from the hidden supernatural realms most people think are just mythical. Vampire Nathaniel Cade, the President's top-secret security agent since 1867, fights off the evil hordes while investigating the Shadow Company, which may be behind the monstrous onslaught. He's also looking into the possibility they have infiltrated a major military contractor. Only Cade's special vampire powers and long experience with the supernatural world have any hope of saving civilization as we know it. Find out how Nathaniel Cade got his position as a sworn defender of the U.S. President in the 1st of this series, Blood Oath.
The King of Plagues: A Joe Ledger Novel by Jonathan Maberry
Detective Joe Ledger, called back to duty after he resigned from opposing the forces of evil, faces a terror group bent on worldwide destruction. From the potential release of a deadly virus in Scotland, horrific destruction of the Royal London Hospital, bombing of the Bombay Stock Exchange, and attempted assassination of Ledger himself, the Department of Military Science realizes the mysterious Seven Kings have vast resources at their disposal. Ledger once again must battle deadly, scientifically created horrors attacking from all directions--and at terrifying speed! King of Plagues is the 3rd in the Joe Ledger series, which begins with Patient Zero.
Graveminder by Melissa Marr
In Claysville, everyone lives until at least the age of 80, barring accidents. This is because Death made a deal with the town--but the price of the deal is that all the Claysville dead must be buried there. Those who are buried elsewhere become the Hungry Dead, who return to seek revenge on the living. The graveminder's task is to make sure the dead stay buried. When one of the vengeful ghosts comes back and murders the graveminder, her granddaughter, Rebekkah, learns she is next in line for this important post, and that she is the only one who can lay the Hungry Dead back to rest!
Other Kingdoms by Richard Matheson
American soldier Alex White settles in an English village after he returns from the trenches of World War I. One of his British comrades-in-arms who died in the war told him about his hometown, so Alex decides to go there when he's released from the service. Sixty years later, Alex tells about the War and about what happened in the creepy town where he settled, when a witch and a faerie competed for his love. If you're new to author Richard Matheson's writing and can't survive without reading more, I Am Legend is the next book for you.
The Zombie Autopsies: Secret Notebooks from the Apocalypse by Steven C. Schlozman
On a remote island research station, scientists dissect monsters infected by Ataxic Neurodegenerative Satiety Deficiency Syndrome, or ANSD--the virus that causes zombiism. Researcher Dr. Stanley Blum records his findings in his notebooks even as he sees that the virus is spreading rapidly. Sly, black humor permeates this tale along with the terror from the encroaching virus. Author Steven Schlozman is an MD and really knows how to crank up the fear level when writing about a scientific mishap. If you can't get enough about zombies, try The Zombie Survival Guide by Max Brooks.
Definitely check out Richard Matheson's books - his subject matter is the paranormal but it's on a spectrum from I Am Legend to What Dreams May Come. Also, check out World War Z also by Max (son of Mel) Brooks (or you could simply wait for the movie).