Though they have remained safely contained so far, global heating and human action could cause them to resurface and come back to life, which might bring about unknown threats to health. The bacteria — which insects disseminate — infect plants such as goldenrods, which have yellow flowers. The infection causes the goldenrods to put out leaf-like extensions instead of their usual blooms.
Eventually, they only serve the spread of the bacteria. But can humans turn into zombies, too? In the s, Dr. Chavannes Douyon and Prof. Roland Littlewood decided to investigate whether Haitian zombies — reanimated, but mindless humans — were a real possibility. In , the two published a study paper in The Lancet in which they analyzed the cases of three individuals from Haiti whose communities had identified as zombies.
One was a year-old woman who had, allegedly, quickly died after having fallen ill. Douyon and Prof. Instead, medical reasons could explain their zombification. The second person had experienced brain damage, and also had epilepsy , while the third appeared merely to have a learning disability. This is because they are under the delusion that they are dead or decomposing. It remains unclear just how prevalent this condition is, but research suggests that it is a rare occurrence.
Another speaks of a year-old man who had developed a belief that his organs — including his brain — had stopped working, and that even the house in which he lived was slowly but steadily falling apart.
At some point, the man attempted to take his own life. Do such cases mean that zombies are real in some way, or, just as our fascination with the figure of the zombie in folklore and popular culture, do they merely reflect our uneasy relationship with death? There are few case studies which give an idea about zombie apocalypse and science back research. But also there are certain yet to research segments on the same and left to decide if zombies are real or not until the researches are published.
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Meh said:. Comment on rabies fatality rate. Although all warm-blooded animals are thought to be susceptible to rabies, there are strains of the rabies virus multiple bat stains strains are maintained in particular reservoir host s , with some cross over especially in the US between raccoons and skunks.
Although a strain can cause rabies in other species, the virus usually dies out during serial passage in species to which it is not adapted, and non-carnivores cows, horses, deer, groundhogs, beavers AND CATS, like small rodents, are dead-end hosts. The CDC estimates in the US, 1 million dollars per potential life saved is spent by post-exposure prophylaxis in cases of exposure to animals other than bats, canines, fox, raccoon, skunks.
Hundreds of unvaccinated cats are infected with, and die or are euthanized of rabies each year -no way every human exposure to "the kitten in the park " is tracked down. Certainly, many farmers and ranchers are unknowingly exposed.
Yet almost all of the people diagnosed in the US yearly, knew they were bitten by a dog when outside the US or handled a bat.
And there have been several incidences since , where people got rabies secondary to solid organ transplants. Species vary in susceptibility to various strains, humans are 'most' susceptible to canine rabies and, in the US, the silver-haired bat strain. This is a solitary bat with infrequent human interaction, whereas we have much more exposure to big and little brown bats and Mexican free-tailed bats. Only a small percentage of any of these have rabies, -it kills them too!
The virus needs to get to a nerve, so if a bite is not deep enough, or a small viral load is deposited, or the 'victim' immune system responds - an infection will never be established. If the virus is able to get to a nerve, it attempts to travel up an axon, to the brain- again, the immune system may eliminate. As rabies is a slow virus, it can self -immunize, explaining the presence of rabies neutralizing antibodies in Amazonian Indians and others who have never been vaccinated?
The reason why a mature dog is considered immunized 28 days after its first rabies vaccination, is if it has been exposed or is 'incubating' rabies virus but the virus is more than 28 days away the vaccine will prevent infection. Although antiglobulin is given, PEP - a killed vaccine, is basically, rapid immunization.
Since definitive diagnosis is made on brain biopsy, the apparent spontaneous cures or response to treatment remain unproven. Not to diminish the threat or the misery of this disease. I don't understand why the WHO estimate of deaths has been quoted as 35, to 55, for the last 40 years - while the world population went from approximately 4 billion to 8 billion, mostly in Africa and Asia where few dogs are vaccinated and most cases are seen.
Worms use up computer resources such as memory and network bandwidth, slowing down both PCs and servers. In addition, worms sometimes delete data and spread rapidly via e-mail. In denial-of-service attacks, specific Web sites are overwhelmed by an intentional onslaught of Internet traffic.
Such attacks rely on launching programs, sometimes called zombies, that have previously been hidden on hundreds of Internet-connected computers that belong to unsuspecting third parties such as universities, Weafer says. Hostile Java applets steal information from or cause damage to the computers of users who visit hostile Web sites. Victims may be tricked into visiting the sites when they click on links they receive via e-mail, Viveros says. Although they aren't yet a major problem, hostile applets "are the next big threat," he says.
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