Vaccination, Science

Assignment Help:

Vaccination:

Now  let us see how vaccination protects us from disease. We have mentioned above that the W.B.Cs.  produce antibodies which neutralise the toxins produced by the invaders. These W.B.Cs.  are of different kinds and each kind consists of millions of cells which recognise and combat a specific foreign  invader. Once a class of W.B.Cs.  has encountered a particular  kind of invader, it develops memory and is thus trained to ward off future attacks. In this way the body becomes "immune"  to that infection and the process is called immunisation. Thus, our body regularly develops  natural immunity as a variety of fighting cells are produced by actual attacks of  infectious agents. Artificial immunisation is a clever  idea. It is done through "vaccination", that is by artificial introduction into  the body of a weak infection, which triggers off a defence mechanism, and produces W.B.C.  trained to combat that particular infection.  


Related Discussions:- Vaccination

Explain immunoglobulin a - classification of antibodies, Explain Immunoglob...

Explain Immunoglobulin A - Classification of Antibodies Present in secretions, protects mucosal surfaces. It is found in tears, saliva, and gastrointestinal secretion, respirat

Explain the secretion of aldosterone, Explain the Secretion of Aldosterone ...

Explain the Secretion of Aldosterone A minimal amount of ACTH is also needed for the secretion of aldosterone. The secretion of aldosterone is thus stimulated by: a d

Calculate the mg-kg-min, 1. DH is admitted with end-stage liver disease and...

1. DH is admitted with end-stage liver disease and severe ascites requiring paracentesis while in the hospital.  He has been started on PN therapy for his poor nutritiona

Requirements for disposal of microbial cultures, Requirements Autoclave...

Requirements Autoclave Microbial cultures - liquid/solid Disinfectant Spatula Disposable bags

An experiment with a floating candle, An experiment with a floating candle ...

An experiment with a floating candle Put a nail in the lower end of a candle. The nail should be just the right weight to make the candle float with its top a little above the

Explain the oxygen toxicity - histotoxic hypoxia, Explain the Oxygen toxici...

Explain the Oxygen toxicity - Histotoxic Hypoxia Exposure to oxygen at increased pressure can produce a marked increase in the dissolved oxygen in blood. It produces toxic effe

Explain isoelectric ph, Explain Isoelectric  pH Isoelectric  pH:   Ma...

Explain Isoelectric  pH Isoelectric  pH:   Many  ionizable groups are  present  in  a  protein molecule. Depending on the pH of the medium, some of these groups act as proton

Cell theory, Ask question #Minimumwhat is that definition for cell theory? ...

Ask question #Minimumwhat is that definition for cell theory? 100 words accepted#

Connectivity of the brain, Even though most of the attention in cognitive n...

Even though most of the attention in cognitive neuroscience has been focused on studying the role of gray matter brain areas / structures in perceptual and cognitive functions, it

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd