The Ultimate Vampire Resource and Directory

From FictionDB.com:

"As the tenacious invaders remake Earth's violated surface, transforming its flora and fauna into a replica of their own terrifying home world, a handful of scientists, soldiers, and citizens prepare to fight back—hoping it isn't already too late. In Mexico, a dead Chtorr leads to a stunning discovery about the aliens. At the same time, a military-scientific expedition deep into the heart of the Brazilian jungle uncovers another surprise: a massive hivelike city where the aliens have embarked on the next step in their remorseless campaign to transform humanity."