Ghoul Fever

A curse-like disease that turns it's victims into ghouls.

Infection
An infection is gained from ghoul bites. Ghoul fever can also occur after the consumption of meat from undead and in rare cases from consuming a humanoid's flesh in general.

Roll a DC 14 Con Save. On a fail, you are infected.

Symptoms and stages
You won't feel any symptoms during the first day. Later your body starts to show signs of necrosis. Make a DC 15 Con Save 1/day. On a fail, loose 1d6 HP permanently until you are cured or dead. You also feel more aggressive and constantly hungry but are disgusted by most food. Make a DC 15 Wis Save or throw up when you eat anything that isn't raw or rotten meat.

Over time, your skin will become pale, your nails grow claw-like and your jaw widens. After you lost at least half of your max HP, you'll already look fairly ghoulish and you'll need a DC 20 Wis Save to eat anything that isn't humanoid flesh.

If you die while being infected, you'll return as a ghoul. If you managed to survive at least a week before your death, you'll become a ghast instead.

Treatment
Diagnosing the infection requires a DC 13 Medicine check. After half of the victim's max HP are gone it's more obvious and only requires a DC 8.

The disease is immune to other spells until Remove Curse is cast on the victim. After that, Lesser Restoration can be cast to cure the ghoul fever. If the infected has already lost at least half their max HP, Greater Restoration is necessary.

The disease can also be weakened through a treatment with mournleaf, requiring a DC 15 Medicine check 1/day, giving advantage to Saves related to ghoul fever on a success. After 3 consecutive successful Saves while receiving the treatment, the disease is cured.