Deadly Carrier (PT)

Choose one disease you are infected with. Youb ecome immune to that disease but continuet o carry it, and you become very contagioust o others. If the disease does not already haveg ame mechanics for its contagiousness, assumet hat anyone spending at least ten minutes within2 0 feet of you must make a Constitution savea gainst the disease or become afflicted with it. Any creature you infect has the normal diseasei nfection rate (not the enhanced rate of thes pell).This spell has no effect if you are notcurrently infected with a disease 

At Higher Levels. When you cast this spellusing a spell slot of 4th level or higher, the duration increases by 1 day for each slot level above 3rd.