For years zoonosis has been feared by many people. It is defined as an infectious disease passed to humans from an animal. These types of diseases have presented problems for both veterinarians and medical doctors. For centuries animals have been a source of medical afflictions that have killed people. Medical science has eradicated many problems that have risen from zoonosis.
The black plague for example has been a disease that was carried by rats and has been cured due to the advent of modern medicine. Bovine tuberculosis is another victory for medical science in the fight against zoonosis. Small pox and influenza have supporting evidence that animals were the cause. The west nile virus appeared in the united states in 2002 and was spread by mosquitoes. It is hard to be certain which diseases have started out from animals but there is good evidence to support that some of the worst epidemic afflictions of the world did initially come as a result of animals.
Even with the modern advances in medicine there are many cases of zoonosis in the world that still occur. Many modern diseases have started out from animals. Rabies for example is a disease that began as a result of canine bites. These different diseases can be transmitted through various agents such as bacteria, parasites, fungi or through a virus. Bacterial cases such as salmonella or e-coli are rare but prevalent in the world. There are many different types of diseases that have been made into a weapon that have been discovered initially as a zoonosis disease.
Zoonosis diseases can be carried by many different types of animals. What is interesting to note is that some of these hosts are very common. For example pigs, rabbits and cattle are very common types of barnyard animals that can carry a zoonosis disease. It is very important for any ranch to have a veterinarian on hand to perform at least annual checkups on their animal wards. Zoonosis still represents a very real and public health hazard to the world. Many people are at risk for zoonosis diseases due to an ignorance of the facts.
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