Infected Types

The Virus
The infection, caused by the Vilacabamba fungus, takes hold of the body in minutes. Spread by bodily fluids, but also appears to be airborne in some locations. Acts similar to Ebola. At a minimum of 2, but up to 12 hours, a heavy fever will set in, virtually immobilizing the patient. The fever does not guarantee turning, although those with a poor immune system will likely die, or begin to turn. Many children and elderly fell victim to the first fever, which could easily top 104 degrees Fahrenheit.  Those who recover from the fever either have a strong immune system, or have taken extensive means to reduce the fever.

If the fever can be stabilized at 100 or less, the patient will most likely recover.

If the fever persists, or means are not taken to reduce it, the second phase of symptoms is the onset of bloodshot eyes, with white irises. In many cases, tapetum lucidum,  otherwise known as nightshine, will develop, causing the patient's eyes to retain light better than normal eyes, and to be visible in dark areas. Permanent vision loss is possible in some cases.

If fever stabilizes before 12 hours but after irises have whitened, eye affliction will be permanent.

(Positive note: Recovered infectees have marked improvement in night vision. However, patients are also slightly light-sensitive for roughly a month. Recommend that survivors be given black glasses so as to prevent eye damage, as well as not to traumatize the population)

If all means to control the infection have failed 12 hours after initial fever, the patient will lose motor functions, and within 14 hours, loss of speech abilities. Concurrent with this is the onset of seizures, which are an indicator that the body has lost the ability to control itself, that the infection has fully taken over, and that means should be taken to euthanize the patient (Recommended: .45 ACP, Center of forehead.) Any attempts to euthanize should ONLY be intense damage to the brain, as any other means will not guarantee permanent death.

If the patient is not euthanized within 3 hours, the patient will seem to recover from the fever, and if consciousness was lost, will regain it.  There seem to be a few ways this can turn out:

Savages
These are infected, who, failing to fight off the infection from their bodies, have become little more than animals in humanoid form.  Normally, their ranks are swelled by individuals who had been killed when it was discovered they were infected, and had reanimated, unlike the traditional means.  Here, the reason is that with the sudden shutdown and restart of body functions (including oxygen and blood to the brain), any form of rationality or intelligence was lost beyond the most basic of motor skills. Even without the infection, any individual who loses brain function due to lack of circulation for any amount of time will likely develop brain damage.

The infection does manage to keep intact the hypothalamus; upon reanimation (or turn), the body will attempt to increase the amount of serotonin, leading to aggressive, unstable, and irrational behavior. They are not always at such a level of violence; typically, they will be docile unless disturbed, alarmed, or enraged.

It appears that even more intelligent forms can eventually devolve to this stage, if they are deprived of any source of food for long periods of time.

As expected, they are quite unintelligent, and appear to be too enraged to even consider human behavior. What intelligence they retain appears to be motor intelligence: they can still climb ladders, open doors, ascend staircases perfectly fine.  However, a smaller percentage of individuals have retained some measure of intelligence and logic skills, and several sub-types exist within this category.

Scaredy-Cats
Scaredy-Cats seem to wake from their nightmarish experience, with a large headache, and wondering where they are.  However, these individuals are as infected as your nearest Savage.  They are very mentally unstable: Tests have shown that they hallucinate, seeing uninfected humans, and sometimes even other infected, as frightening monsters. They have more or less shifted to animal instinct being their prime driver, and will either run in fear, or viciously maul others around them, under the misguided impression that they are defending themselves.

However, it appears that with heavy medication (Surviving anti-depressants), and with intensive care, that scaredy-cats can be somewhat rehabilitated, and hallucinations will disappear.  However, it is only successful part of the time, and it would be much more valuable to focus efforts on other pursuits.