Inaccurate?

Contagion, Mass

(Spell Compendium, p. 51)

Necromancy [Evil]
Level: Cleric 5, Druid 5, Sorcerer 6, Wizard 6,
Components: V, S,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Area: 20-ft.-radius spread
Duration: Instantaneous
Saving Throw: Fortitude negates
Spell Resistance: Yes

Forcing a hacking cough, you complete the spell. In the area you've designated, you see swirling red and black mist rise up, accompanied by the distant sound of your echoing cough.

This spell functions like contagion (PH 213), but all creatures within the area are infected.