Virus
According to the FVZA, The zombie virus comes from the same Mononegavirales family as the Human Vampiric Virus. The virus is propagated mainly through ticks of the family Ixodidae. The prevalence of these ticks in tropical climes is the main reason for the large number of outbreaks in those regions. The nature of the spread of zombie plagues generally depended on the place of origin. Most urban plagues were spread by aggressive rats that had been bitten by an infected tick. In the country, the tick would bite humans directly, or pass the virus through mice, raccoons and other animals.
This of course it`s just one possible explanation for Biological / Quemical infestation. There are a few other that might actually keep you thinking about the odds.
According to David Wong, there are 5 cientific reasons a zombie apocalypse could actually happen and we are going to discuss about them here.
Parasites that turn victims into mindless, zombie-like slaves are fairly common in nature. There's one called toxoplasmosa gondii that seems to devote its entire existence to being terrifying. Half of human population is infected with toxoplasmosa and don`t even know it, maybe you are one of them.
Also, they've done studies and shown that the infected see a change in their personality and have higher risk of going insane.
Humans and rats aren't all that different; thats why they use them to test our drugs. All it takes is a more evolved version of toxoplasmosa.
If you're comforting yourself with the thought that it may take forever for such a parasite to evolve, you're forgetting about all the biological weapons programs around the world, intentionally weaponizing such bugs. You've got to wonder if the lab workers don't carry out their work under the unwitting command of the toxoplasmosa gondii already in their brains. If you don't want to sleep at night, that is.
You may be protesting that technically these people have never been dead and thus don't fit the dictionary definition of "zombies," but we can assure you that the distinction won't matter a whole lot once these groaning hordes are clawing their way through your windows.
Neurotoxins
There are certain kinds of poisons that slow your bodily functions to the point that you'll be considered dead, even to a doctor (okay, maybe not to a good doctor). The poison from fugu (Japanese blowfish) can do this. The victims can then be brought back under the effects of a drug like datura stramonium (or other chemicals called alkaloids) that leave them in a trance-like state with no memory, but still able to perform simple tasks like eating, sleeping, moaning and shambling around with their arms outstretched.
even if some evil genius intention ally distributed alkaloid toxins to a population to turn them into a shambling, mindless horde, there is no way to make these zombies aggressive or cannabalistic.
Yet...
The Real Rage Virus
Mad Cow Disease came along. It attacks the cow's spinal cord and brain, turning it into a stumbling, mindless attack cow.
When Mad Cow gets in humans, they call it Creutzfeldt-Jakob disease. Check out the symptoms:
- Changes in gait (walking)
- Hallucinations
- Lack of coordination (for exa mple, stumbling and falling)
- Muscle twitching
- Myoclonic jerks or seizures
- Rapidly developing delirium or dementia
But, it proves widespread brain infections of the Rage variety are just a matter of waiting for the right disease to come along.
If the whole sudden, mindless violence idea seems far-fetched, remember that you are just one brain chemical (serotonin) away from turning into a mindless killing machine (they've tested it by putting rats in cages getting at each other) All it would take is a disease that destroys the brain's ability to absorb that one chemical and suddenly it's a real-world 28 Days Later.
Neurogenesis
You know all that conversy out there about stem cell research? Well, the whole thing with stem cells is that they can basically be used to re-generate dead cells. Particularly of interest to zombologists like ourselves is neurogenesis, the method by which they can re-grow dead brain tissue.
You can see where this is going.
Science can pretty much save you from anything but brain death; they can swap out organs but when the brain turns to mush, you're gone. Right?
Well, not for long. They're already able to re-grow the brains of comatose head trauma patients until they wake up and walk around again.
Couple that with the new ability to keep a dead body in a state of suspended animation so that it can be brought back to life later, and soon we'll be able to bring back the dead, as long as we get to them quickly enough.
That sounds great, right? Well, this lab dedicated to "reanimation research" (yes, that's what they call it) explains how the process of "reanimating" a person creates a problem. It causes the brain to die off from the outside in. The outside being the cortex, the nice part of you that makes humans human. That just leaves the pa rt that controls basic motor function and primitive instincts behind.
You don't need the cortex to survive; all you need is the stem and you'll still be able to mindlessly walk and eat and enjoy Grey's Anatomy. This is how chickens can keep walking around after they've been beheaded (including one case where the chicken lived for 18 months without a head.
Nanobots
Nanobots are a technology that science apparently engineered to make you terrified of the future. We're talking about microscopic, self-replicating robots that can invisbily build--or destroy--anything. Vast sums of money are being poured into nanotechnology. Sure, at some level scientists know nanobots will destroy mankind. They just can't resist seeing how it happens.
Scientists have already created a nano-cyborg, by fusing a tiny silicone chip to a virus. The first thing they found out is these cyborgs can still operate for up to a month after the death of the host. Notice how nano scientists went right for zombification, even at this early stage. They know where the horror is.
According to studies within a decade they'll have nanobots that can crawl inside your brain and set up neural connections to replace damaged ones. That's right; the nanobots will be able to rewire your thoughts. What could possibly go wrong?
Do the math, people. Some day there will be nanobots in your brain. Those nanobots will be programmed to keep functioning after you die. They can form their own neural pathways, meaning they can use your brain to keep operating your limbs after you've deceased and, presumably, right up until you rot to pieces in mid-stride
The nanobots will be programmed to self-replicate, and the death of the host will mean the end of the nanobots. To preserve themselves, they'd need to transfer to a new host. Therefore, the last act of the nanobot zombie would be to bite a hole in a healthy victim, letting the nanobots steam in and set up camp in the new host. Once in, they can shut down the part of the brain that resists (the cortex) and leave the brain stem intact. They will have added a new member to the unholy army of the undead.
Now, it should be more than clear by this point that our goal is to be responsible researchers. We don't want to create a panic here. All we're saying is that on an actual day on the actual calendar in the future, runaway microscopic nanobots will end civilization by flooding the planet with the cannabalistic undead.
Science has proven it
There is another class of Zombies, in the (supernatural category) and they are mentioned specifically as Voodoo to be responsable of this atrocity, Some of you oughta be thinking that all at what we are looking at are only futuristic ideas but the thing is that the world has already seen some zombie insights! Do you want some light reading?
Here you go:
By. Clair G. Wood
When Clairvius Narcisse entered the Albert Schweitzer Hospital in Port-au-Prince, Haiti, he appeared to be suffering from malnutrition, high fever, and aches throughout his body. His condition deteriorated
rapidly as he developed respiratory problems, became unresponsive, and then slipped into a coma.
Two days later, on May 2, 1962, he was declared dead by two attending physicians. His sister, Angelina, identified the body, and another sister, Marie Claire, authenticated the death certificate by placing her fingerprint on it. The next day Angelina, Marie Claire, and the rest of the family buried Clairvius in a small cemetery near their village of I’Estere. Here the saga of Clairvius Narcisse should have ended, but 18 years later, in 1980, a shuffling, vacant-eyed man approached Angelina in the village marketplace and identified himself as her brother, Clairvius.
To end this Chapter just another Fact:
The Nazis in WWII developed a pathogen that they used in concentration camps to make the taker of the drug a mindless husk of a person who lived only to feed. Usually, they ate what they were given, but two cases happened where the infected person couldn't differ from their food and the officer next to them. They attacked the officer and were shot.
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