Vaccination - success of chemotherapy is that some...

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Vaccination Treatment or preventative procedures are often developed before scientists know why they work smallpox vaccine good example of this 1796, Edward Jenner performed first vaccination Jenner discovered that if a person was exposed to cowpox they would not contract smallpox Pasteur later named this technique, vaccination (vacc=cow) in honor of Jenner’s work 1880, Pasteur begins developing vaccines for a variety of diseases, fowl cholera, anthrax, rabies… Today, most vaccines are produced by weakening the viral particles, killing the viral particles, or genetically engineering the viral particles Birth of chemotherapy chemotherapy – treatment of disease by using chemical substances; also refers to chemical treatment of noninfectious disease (cancer) synthetic drugs- prepared from chemicals in a laboratory antibiotics – produced naturally by bacteria and fungi to act against other microbes
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Unformatted text preview: success of chemotherapy is that some chemicals are more poisonous to microbes than to the host infected by the microbe First Synthetic Drug- First chemotherapy—used substances from nature such as plant products (folk medicine) Cinchona bark—quinine for malaria Willow bark—aspirin Foxglove—digitalis, congestive heart failure and diurectic against dropsy (excess fluid build-up in tissues) 1910, Paul Ehrlich found Salvarsan (arsenic derivative) effective against syphilis 1930’s sulfa drugs (sulfonamides) synethisized 1928, Alexander Fleming discovered penicillin by accident. Fungus infected his bacterial plates and inhibited the growth of his bacteria- Penicillin not extensively tested or mass produced until 1940’s...
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