Question

Explain the meaning of vaccination. ​

Answer 1

Answer:

treatment with a vaccine to produce immunity against a disease

Explanation:

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Answer 2

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Vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.

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$\large\bf{\underline{\pink{vaccine \: invention :-}}}$

The first vaccine was introduced by British physician Edward Jenner, who in 1796 used the cowpox virus (vaccinia) to confer protection against smallpox, a related virus, in humans.

$\large\bf{\underline{\pink{vaccine \: role :-}}}$

A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and effective way. A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and effective way.

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Vaccines are made by taking viruses or bacteria and weakening them so that they can't reproduce (or replicate) themselves very well or so that they can't replicate at all. Children given vaccines are exposed to enough of the virus or bacteria to develop immunity, but not enough to make them sick

$\large\bf{\underline{\pink{vaccine \: are :\ inactivated :-}}}$

Inactivated Vaccines: For these vaccines, the specific virus or bacteria is killed with heat or chemicals, and its dead cells are introduced into the body. Even though the pathogen is dead, the immune system can still learn from its antigens how to fight live versions of it in the future.

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Despite decades of trying, there are still no vaccines against viruses that kill tens of millions of people and cause untold suffering every year: HIV, respiratory syncytial virus, and the cancer-causing Epstein-Barr virus.

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