Wednesday 30 November 2011

HISTORY OF DISEASES FROM ANIMAL FOOD..


   Food products from Animals are not safe. If we try it for some Vitamins, increase Health risk. History had some valuable messages to us.
The consumption of meat can cause a transmission of a number of 
diseases from animals to humans. 
The connection between infected animal and human illness is well established in the case of salmonella; an estimated one-third to one-half of all chicken meat marketed in the United States is contaminated with salmonella.
Only recently, however, have scientists begun to suspect that there is a similar connection between animal meat and human cancer, birth defects, mutations, and many other diseases in humans. 
The rate of disease among chickens is so high that the Department of Labor has ranked the poultry industry as one of the most hazardous occupations. 
20% of all cows are afflicted with a variety of cancer known as bovine leukemia virus (BLV).
Studies have increasingly linked BLV with HTLV-1, the first human retrovirus discovered to cause cancer.
 Scientists have found that a bovine immunodeficiency virus (BIV), the equivalent of the AIDS virus in cows, can also infect human cells. 
It is supposed that BIV may have a role in the development of a number of malignant or slow viruses in humans.
The proximity of animals in industrial-scale animal farming leads to an increased rate of disease transmission.
Transmission of animal influenza viruses to humans has been documented, but illness from such cases is rare compared to that caused by the now common human-adapted older influenza viruses, transferred from animals to humans in the more distant past.
 The first documented case was in 1959, and in 1998, 18 new human cases of H5N1influenza were diagnosed, in which six people died. 
In 1997 more cases of H5N1 avian influenza were found in chickens in Hong Kong.
Whether tuberculosis originated in cattle and was then transferred to humans, or diverged from a common ancestor infecting a different species, is currently unclear. 
The strongest evidence for a domestic-animal origin exists for measles and pertussis, although the data do not exclude a non-domestic origin.
According to the 'Hunter Theory', the "simplest and most plausible explanation for the cross-species transmission" the AIDS virus was transmitted from a chimpanzee to a human when a bushmeat hunter was bitten or cut while hunting or butchering an animal.
Historian Norman Cantor suggests the Black Death might have been a combination of pandemics including a form of anthrax, a cattle murrain. He cites many forms of evidence including the fact that meat from infected cattle was known to have been sold in many rural English areas prior to the onset of the plague.


So Beware the Animal producing foods. They can make troubles in our life..

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