Vaccination
Vaccination is a term coined by Edward Jenner for the process of administering a weakened form of a disease to patients as a means of giving them immunity to a more serious form of the disease. The word comes from the Latin for cow, in honor of the cowpox virus -- a relatively benign virus that was discovered to have the side effect of conferring immunity to smallpox, a deadly and highly contagious disease. Since Jenner's time vaccination has become widespread and applicable to diseases other than smallpox. Louis Pasteur later developed the technique, extending it to protection against anthrax (caused by a type of bacterium) and rabies (caused by a virus) by treating the infectious agents for those diseases so that they lost their disease-producing abilities. In honour of Jenner's discovery, which his own work had built on, Pasteur adopted the name vaccine as a generic term for his these protective injections. Vaccination is now used to immunize people against many diseases. Generically the process of protecting against an infectious disease by "priming" the immune system with material, the immunogen, designed to stimulate an immune response to the infectious agent is known as immunization. Vaccination is used where the immunogen is itself a living infectious agent, normally either a closely related bacterial species (as with smallpox and cowpox), or by using a strain weakened by some process. In this case the immunogen is called a vaccine. In its greatest triumphs, vaccination campaigns have eliminated smallpox throughout the world and restricted polio to some war-torn countries in Africa where health care access is difficult. Vaccines have made other once common childhood diseases rare, as mumps, measles, etc. Some modern vaccines are administered after the patient already has the disease as in experimental AIDS, cancer and Alzheimers disease vaccines. Myths and facts on vaccination --Myth #1: Measles deaths had declined by 99.4% (from 1901/2, UK) before vaccination. --Myth #2: There is no evidence vaccination eliminated smallpox, and vaccination increased the spread and incidence of the disease, as well as spreading leprosy, syphilis, TB and the like around the world. Huge epidemics were caused by compulsory vaccination which was why they repealed the compulsory vaccination act. Most cases of smallpox had been vaccination. --Myth #3: The dangers and infectivity of smallpox have been hyped to sell vaccination. It was considered less dangerous than measles in the 18th century and 98% curable under homeopaths or naturopaths, while under allopaths it was 20-30% fatal, due mostly to their use of mercury and ignorance of diet and nutrition--the main protection against smallpox. --- -- Fact #1: There are no long-term double-blind randomised controlled studies of any vaccine for any disease published in any journal in any country in any time period. (To perform a long-term controlled study of vaccination, one would take two large groups of people, and vaccinate one group and not vaccinate the other. Then one would wait and see how the individuals in each group fared over a period of years.) -- Fact #2: Epidemiological evidence shows that vaccines are not 100% effective, that they do have undesirable side effects, and that they sometimes can cause the disease they seek to prevent. -- Fact #3: Epidemiological evidence show that vaccine programs can decrease the incidence and prevalence of disease. -- Fact #4: Post-exposure prophylaxis vaccination has been demonstarted to reduce the incidence and severity of such diseases as smallpox and rabies. -- Fact #5: Some of the reduced incidence in given diseases for which vaccinations are given is due to improved nutrition and improved sanitation, and cannot be entirely attributed to the vaccination's effects.
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