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What is the purpose of vaccines?

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โˆ™ 2010-11-27 00:31:09

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Vaccines, medicines containing a preparation of weakened or dead microbes of the kind that cause a particular disease, are administered to stimulate the immune system to produce antibodies against that disease. They are used to force the body's white blood cells to develop a response to the specific pathogen and rid the body of the invading microorganisms.

Immunization can occur naturally when an untreated microbe in the environment is received by a person who has had no prior exposure to that microbe and, therefore, has no pre-made antibodies for defense.

The immune system of an otherwise healthy individual will eventually create antibodies for the microbe, but this is a slow process and, if the microbe is deadly, there may not be enough time for the antibodies to begin being used to inactivate the microbe before serious symptoms or even death can occur.

Artificial active immunization (vaccination) was created to boost the immune system's abilities to more quickly respond. In this process, the microbe is introduced into the person before they have been exposed to take it in naturally from the environment or directly from an infected person.

Microbes to be used in a vaccine are treated to weaken them (attenuated live vaccines) so that they will not cause disease in the person receiving the vaccination. Depending on the type of microorganism for which immunization is desired, vaccines can be used made from the attenuated pathogen, from entirely inactivated ("dead") microbes, from incomplete particles of the microbe, or treated toxins from the germ.

See the related questions below for more information about vaccinations.

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โˆ™ 2010-11-27 00:31:09
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Related questions

What is the purpose of booster vaccines?

To elicit a secondary response to an antigen.


The purpose of giving a person a vacine is to?

The purpose of vaccines is to help build a persons immune system by introducing them to a small amount of the virus.


How do you use vaccines?

There are oral vaccines and injectable vaccines.


Vaccines are effective in preventing disease because they?

Vaccines are for the purpose of disease prevention. Vaccination is the process of introducing harmless pathogens to the body for a response trigger without an actual infection. Vaccines are either composed of: *dead pathogens *weakened pathogens *protiens from the target pathogens


What are live vaccines?

Live vaccines are vaccines which are prepared from living organisms. These vaccines are commonly ingested and not injected to fight viruses in the body. .


What is a killed virus vaccines?

Vaccines made with "killed" viruses are called "Inactivated" vaccines.


What are edible vaccines?

Edible vaccines are vaccines produced in plants genetically modified through bioengineering.


Do vaccines cause AIDS?

Vaccines do not cause AIDS.


Which vaccines were first tested on animals?

IV vaccines..


Are vaccines used to treat viruses or bacteria?

Vaccines don't actually treat either one. Vaccines are used to PREVENT disease. Most vaccines protect against viruses, but there are some for bacteria, as well.


What is the most recent vaccines to come out?

The most recent vaccines to come out, is the H1N1 aka SWINE FLU vaccines.


How much are horse vaccines?

How much money are horse vaccines

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