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 in detail about the sedimentary rocks, Explain in detail about the ...

Explain in detail about the Sedimentary rocks  Sedimentary rocks are formed from the breakdown of  igneous rocks.  These rocks are broken apart by plant roots, ice wedges, and

Ground depressions in areas of karst topography, Ground depressions in area...

Ground depressions in areas of Karst topography are called: Sinkholes

Methods of preventing or reducing soil erosion, What are the methods of pre...

What are the methods of preventing or reducing soil erosion? The methods of preventing or reducing soil erosion are: (i) Prevention of deforestation (ii) Plantation of tre

What is amino acids metabolism, What is amino acids metabolism ? Nitro...

What is amino acids metabolism ? Nitrogen enters the body through a variety of compounds present in the food, the most important being amino acids present in dietary proteins.

Vaccination, Vaccination: Now  let us see how vaccination protects us...

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 th

Use the procedure for fire fighting, Use the following procedure for fire f...

Use the following procedure for fire fighting. (1) Always take a position between the fire and the exit so your escape route cannot be cut off. Fire extinguishers should always

How to make an overflow can and catch bucket, How to make an overflow can a...

How to make an overflow can and catch bucket These are useful for the study of Archimedes'  principle, which controls floating and sinking. To make an overflow can secure a tin

Iron age, factors that led to the decline of european science during iron a...

factors that led to the decline of european science during iron age

A compound plane faces that can be seen with the unaided eye, A solid compo...

A solid compound whose internal structural pattern is expressed as plane faces that can be seen with the unaided eye is generally called as a: Crystal

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