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Vaccination against vaccine-preventable diseases is a major relief of disease burden even though it usually cannot eradicate a disease. Vaccines against microorganisms that cause diseases can prepare the body's immune system, thus helping to fight or prevent an infection.
Vaccination is the administration of a vaccine to help the immune system develop immunity from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism. In stimulating the body's adaptive immunity, they help prevent sickness from an infectious disease.
The administration of vaccines is called vaccination. Vaccination is the most effective method of preventing infectious diseases; [10] 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.
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. A vaccine is an antigenic preparation used to produce active immunity to a disease, in order to prevent or reduce the effects of infection by any natural or "wild" pathogen. [2]
The vaccine for tetanus is included in a combination vaccine that also protects against diphtheria and pertussis (more commonly known as whooping cough). The shot for young children is called DTaP ...
The vaccine has nonspecific effects such as preventing respiratory infections, that may be greater than those of measles prevention alone. [35] These benefits are greater when the vaccine is given before one year of age. [36] A high-titre vaccine resulted in worse outcomes in girls, and consequently is not recommended by the World Health ...
Vaccination has been one of the most impactful public health interventions of the past century. Since the foundation of the Expanded Programme on Immunization (EPI) by the World Health Organization (WHO) in 1974, vaccines have provided the single greatest contribution to improving health outcomes globally, particularly among children and infants.
“Vaccination, while not 100% effective at preventing infection, makes the infection less severe in those who do get it. ... “If you have received two doses of the MMR vaccine as a child, it ...
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