So basically there's a few stages to my new evil OC's virus powers once a human is infected, for those who want their character to be infected by it. This is all a slow progression.

Stage One:
First it's a fever and a few stomach cramps, nothing too bad. These slowly progress, probably over days to weeks depending on the infected individual's immune system.

Stage Two:
This is where things start getting bad. Once the first stage reaches maximum, stage two kicks into gear. Usually the fever is high enough to induce hallucinations in the poor victim, and their appetite will slowly start to decrease until they can't eat properly at all.

Stage Three:
This stage will only happen if Kieran manages to gain more power, as they aren't yet strong enough for this stage to be reached with their virus. Eventual comatose will happen, most likely due to exhaustion and lack of nutrients from food. Organ shutdown is possible, but hopefully people won't allow this to happen and stop Kieran before this point can be reached.

Transmission:
There are 2 ways for this to be transmitted. The most common way is through the foods people eat, mostly plants at first and will slowly spread to animals and meat. The second, less common way, is to have an infected animal bite someone to where they draw blood.

Cure?:
Yeah, there are a few ways to heal those who are sick with this.

-If treated by a human type means with medicine, usually it'll slow to a stop but it won't go away.
-If treated with potions and poultices, it will slowly subside back through the stages. But once the treatment stops it'll start progressing again.
-If "cured" with magic means it'll go away seemingly, but it'll return in a few days.
-If Kieran is killed, the virus will slowly vanish for good. Slowly...
-The ring on their finger is a power enhancer. If removed and/or destroyed, the virus will then be able to be cured and healed by human, potion, and magic means.