Hey y'all!! I just found this book series of accident while searching for another post! These look interesting if you are into disease and plague.They sound similar to books such as Ashes, Ashes or The Eleventh Plague or even Enclave and the Partials.
"In the wake of a devastating disease, everyone sixteen and older is either dead or a decomposing, brainless creature with a ravenous appetite for flesh. Teens have barricaded themselves in buildings throughout London and venture outside only when they need to scavenge for food. The group of kids living a Waitrose supermarket is beginning to run out of options. When a mysterious traveler arrives and offers them safe haven at Buckingham Palace, they begin a harrowing journey across London. But their fight is far from over—the threat from within the palace is as real as the one outside it.
Full of unexpected twists and quick-thinking heroes, The Enemy is a fast-paced, white-knuckle tale of survival in the face of unimaginable horror."
1) The Enemy
2) The Dead
3) The Fear