Immunization
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Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent. When this system is exposed to molecules that are foreign to the bod
Dr. Schreiber of San Augustine giving a typhoid inoculation at a rural school, San Augustine County, Texas. Transfer from U.S. Office of War Information, 1944.
Medical student participating in a polio vaccine campaign in Mexico
A simplified diagram showing the process of immunization through the production of anti-bodies
Immunity (medicine)
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In biology, immunity is the state of being insusceptible or resistant to a noxious agent or process, especially a pathogen or infectious disease. Immunity may occur naturally or be produced by prior e
Immunization
…production of these elements by the body itself. Immunization happens in various ways, both in the wild and as done by human efforts in health care. Natural immunity is gained by those organisms whose immune systems succeed in fighting off a previous infection, if the relevant pathogen is one for which immunization…
A representation of the cholera epidemic of the 19th century
Louis Pasteur in his laboratory, 1885, by Albert Edelfelt
One of the first bottles of diphtheria antitoxin produced (dated 1895)
Poster from before the 1979 eradication of smallpox, promoting vaccination