For now there are 2 types:
Infected- Regular infected people. They go about the pace of a crawling baby, they tend to target people. They are colorblind, they can smell people, they have very good hearing.
Bios- These will be found mostly near labs, nuclear plants, power plants, factories, pretty much anywhere were toxic waste can be found. The usual side-effects are just that they become faster, some can even run, but some, though rare, can scream at high pitches, and very, very few regain the ability to see color. These are more dangerous, as they tend to target anything that moves on it's own. They'll attack a flag if it's moving, or a shirt, or a cat, or dog, or a person. Anything that moves on it's own.
Those are the only two types for now. Regular Infected will be 90% of what you'll see for now, Bios aren't seen that often because of the specific conditions that have to be for them to survive in.
The ways to be infected are in the first post under red print.
I'm going to add a FAQ section under the first post to store information like this, extra stuff added after the original plot.
And okie dokes~ I'm going to my loner character once we get a little started, but I have to finish his character sheet ^^"