A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it, and to further recognize and destroy any of the microorganisms associated with that agent that it may encounter in the future. Vaccines can be prophylactic (to prevent or ameliorate the effects of a future infecA vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it, and to further recognize and destroy any of the microorganisms associated with that agent that it may encounter in the future. Vaccines can be prophylactic (to prevent or ameliorate the effects of a future infection by a natural or "wild" pathogen), or therapeutic (e.g., vaccines against cancer, which are being investigated).
The administration of vaccines is called vaccination. Vaccination is the most effective method of preventing infectious diseases; widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the restriction of diseases such as polio, measles, and tetanus from much of the world. The effectiveness of vaccination has been widely studied and verified; for example, vaccines that have proven effective include the influenza vaccine, the HPV vaccine, and the chicken pox vaccine. The World Health Organization (WHO) reports that licensed vaccines are currently available for twenty-five different preventable infections.
The terms vaccine and vaccination are derived from Variolae vaccinae (smallpox of the cow), the term devised by Edward Jenner to denote cowpox. He used it in 1798 in the long title of his Inquiry into the Variolae vaccinae Known as the Cow Pox, in which he described the protective effect of cowpox against smallpox. In 1881, to honor Jenner, Louis Pasteur proposed that the terms should be extended to cover the new protective inoculations then being developed....more
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Here in the First World, everyone has already been vaccinated, and we don't let religious fanatics come up and poke needles into us. But we do take a lot of drugs.Here in the First World, everyone has already been vaccinated, and we don't let religious fanatics come up and poke needles into us. But we do take a lot of drugs....more
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―
Neal Stephenson,
Snow Crash
This global discussion group has been designed to encourage debates about important and underrep…more
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This global discussion group has been designed to encourage debates about important and underreported issues of our era. All you need is an enquiring mind and a desire to gain or share “underground knowledge”. This is also a place to discuss the controversial topics explored in The Underground Knowledge Series (non-fiction books) by James Morcan & Lance Morcan as well as the Underground Knowledge podcast show.
A place to discuss all the unique aspects of Deaf culture as highlighted in the thriller Silent …more
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A place to discuss all the unique aspects of Deaf culture as highlighted in the thriller Silent Fear (A novel inspired by true crimes) by Lance & James Morcan. This group can also be an intersection of sorts where Deaf and hearing people can engage and learn from each other.
