It looks like they do, all you see is Tom get bitten by the cleaning girl and a vampire sneak up on Danny in the car. But they probably did die either that or they became vampires is is more likely to happen in real life as Harry wouldn't want them to die but to spent eternity with them.
To be a vampire, any person simply has to be bitten by another vampire but not killed. If a vampire kills a person completely they die, but if they don't die, they become a vampire themselves.
Danny Chandler died in 2010.
Danny Dare died in 1996.
Danny Stanton died in 1943.
Danny Summers died in 1999.
Danny McAllister died in 2008.
Danny Bennett died in 2008.
Danny Cedrone died in 1954.
Danny Morejón died in 2009.
Danny Livingstone died in 1988.
Danny Fiszman died in 2011.
Danny Alvin died in 1958.