Bone Sickness is a low-budget 2004 horror film

Horror film

Horror films seek to elicit a negative emotional reaction from viewers by playing on the audience's most primal fears. They often feature scenes that startle the viewer through the means of macabre and the supernatural, thus frequently overlapping with the fantasy and science fiction genres...

 about a degenerative bone disease

Bone disease

-Terminology:A bone disease is also called an "osteopathy", but because the term osteopathy is often used to a health-care approach, use of the term can cause some confusion.-Bone and cartilage disorders:...

, from the same director as Mummy Raider.

Plot

Alex McNetti has a rare disease which gives him very brittle bones. His friend Thomas Granger believes that he has found the cure by feeding his friend dead flesh to counteract the terrible disease. However the process does have its side effects including making Alex cough up and vomit worms, and also turning him into a zombie. The dead start to rise from their graves and butcher every living human they see to pieces, including a heavily armed SWAT team.
The zombies later invade a vastly populated city, killing every living person in sight once again.