Experiments using animals have played a crucial role in the development of modern medical treatments, and they will continue to be necessary as researchers seek to alleviate existing ailments and respond to the emergence of new disease. In the mid-19th century, a French chemist Louis Pasteur, was the first to become aware of the fact that w

In my generation, we have been witness to many new discoveries, one being Dolly, the first sheep clone. But according to Dr. Ian Wilmut, who produced Dolly, a "great number of abnormalities" are being discovered in cloned animals. Dr. Wilmut, also pointed out the great number of embryos needed to create each clone and a significant percentage of animal clones do not survive. Even Dr. Rudolf Jaenisch, one of the Massachusetts Institute of Technology cloning experts, says that many clones have problems with their lungs, but disorders of the circulatory system, immune system, brain and kidneys has also been found. Researchers go through so much trouble to produce a clone, which may not even survive or have defects. It's needlessly killing embryos, real possible animals.

Animal research is not only to produce new vaccines for treatment of infectious disease; it also led to the development of antibacterial and antibiotic drugs. A lack of proper animal experimentation delayed the use of penicillin for a decade because Alexander Fleming, in 1929, didn't use mice. It was only in 1940, when Howard W. Florey, Ernst B. Chain and others at the University of Oxford finally showed penicillin to be dramatically effective as an antibiotic using the mouse protection test. In our day in age, it's hard to imagine how new and better vaccines and medicines against infectious disease can be developed without experiments involving animals.

The knowledge of different aspects on a topic that affects so many lives, it is hard to acquire necessary information and take a stand. But no matter how convincing the information presented to you by the media, where you stand depends on you values and how important you feel the lives of innocent animals are.

hen cultures of microorganims lost their ability to infect, and when implanted in a different animal, that animal became resistant to a lethal microorganisms. Although Pastuer wasn't the first to notice this, he was the first to find a means of producing this resistance without risk of disease, and so began our era of vaccines. Following the work of Pasteur and others, scientists have developed vaccines for dozens of infectious disease including diphtheria, tetanus, rabies, tuberculosis, measles, mumps and rubella. And recently a vaccine against Hib, a major cause of meningitis, which we probably all have gotten because of the outbreak not too long ago.

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Approximate Word count = 2134
Approximate Pages = 9 (250 words per page double spaced)