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

Objectives laws, Objectives While undertaking this exercise and after i...

Objectives While undertaking this exercise and after its completion, you should be able to: share with your peer group, the relevant information1 knowledge/opinions with regard

Coastal seafood, Coastal Seafood Coastal Seafood is a family-owned busi...

Coastal Seafood Coastal Seafood is a family-owned business that operates on the East Coast. The company already uses both financial and point-of-sale software, but has been una

Method for all other wastes, For all other wastes i) Burial The spil...

For all other wastes i) Burial The spillage could be buried using any of the following methods: The spillage could be mixed with sand and buried deep. Examples: Iodine

Friction, essay on friction is a necessary evil

essay on friction is a necessary evil

Phylum coelenterata, what is the economic importance of phylum coelenterata...

what is the economic importance of phylum coelenterata

To assemble a continuity testing device, TO ASSEMBLE A CONTINUITY TESTING D...

TO ASSEMBLE A CONTINUITY TESTING DEVICE AND TO USE IT FOR CHECKING THE EFFECTIVENESS OF EARTHING IN AN APPLIANCE Here, you read about earthing as an essential requireme

Functions of prejudice, Describe in one sentence the contents of the four f...

Describe in one sentence the contents of the four functions of prejudice and apply it in your work place? a) The four function of prejudice encompasses the various attitudes tha

Hazards of a nuclear world, Hazards of a Nuclear World : The-picture pai...

Hazards of a Nuclear World : The-picture painted abdve  seems rosy. Yet, it does have a few shades of grey. There are many  risks associated with the use of  nuclear fission ene

Define albumin in the urine, Define Albumin in the Urine Albumin in the...

Define Albumin in the Urine Albumin in the urine generally means leaking of the plasma albumin through the inflamed renal glomerulus (glomerulonephritis). It may also be presen

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