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Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent (known as the immunogen).
[1] [2] The safety and effectiveness of vaccines has been widely studied and verified. [3] [4] 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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 9 February 2025. Administration of a vaccine to protect against disease This article is about administration of a vaccine. For the vaccines themselves, see vaccine. See also: Immunization Medical intervention Vaccinations Girl about to be vaccinated in her upper arm ICD-9-CM 99.3 - 99.5 [edit on Wikidata ...
Example Polish call for vaccination against diphtheria and tetanus Global vaccination coverage 1980 to 2019 among one year olds [1]. A vaccination schedule is a series of vaccinations, including the timing of all doses, which may be either recommended or compulsory, depending on the country of residence.
Widespread immunization has substantially reduced the morbidity and mortality rates from diseases such as tuberculosis, poliomyelitis, measles, diphtheria, tetanus, pertussis, hepatitis B, yellow fever, meningitis A and many others. Recent innovations have expanded the impact of vaccines in addressing not only childhood diseases but also adult ...
The Immunization Action Coalition (IAC) is an organization that distributes information about vaccines and the diseases they prevent. [2] In partnership with the Centers for Disease Control and Prevention (CDC), their headquarters is located in Saint Paul, Minnesota , with member coalitions in the United States and Canada.
Vaccines are essential for preventing serious illness, especially as you get older and see your immune system weaken, Dr. Quinones says. While vaccine hesitancy has come up more recently, ...
The earliest recorded artificial induction of immunity in humans was by variolation or inoculation, which is the controlled infection of a subject with a less lethal natural form of smallpox (known as Variola Minor) to make him or her immune to re-infection with the more lethal natural form, Variola Major.