Necromancy [Evil]
Level: Cleric 3, Sorcerer 4, Wizard 4
Components: V, S
Casting Time: 1 standard action
Range: Touch
Target: Living creature touched
Duration: See text
Saving Throw: Fortitude negates
Spell Resistance: Yes
As contagion, except that the target is not stricken immediately: there is an incubation period. During the incubation period the target can transmit the disease to others but shows no symptoms until his incubation period has ended.
Note: The various diseases and their incubation periods are listed under Disease.
Source: Races of Faerûn (Page 190)