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

The ventricular system, The ventricular system While the ventricular syste...

The ventricular system While the ventricular system is naturally not involved in cognitive processing since it consists of cavities filled with cerebrospinal fluid, it is good to

Big bang boom, if we drink liquid nitrogen then what happen

if we drink liquid nitrogen then what happen

Preparation of guidance charts for first aid , Preparation of Guidance Char...

Preparation of Guidance Charts for First Aid Your Counsellor will form groups of four students. Using the materials from the sections of Unit 16 mentioned in each case below, each

Explain the vasomotor centre and cardio-inhibitory centre, Explain the Vaso...

Explain the Vasomotor Centre and Cardio-Inhibitory Centre The vasomotor centre (in the medulla ablongata) excites the respiratory centre. The pulmonary ventilation is increased

Vision, What is vision and how is it connected to the brain?

What is vision and how is it connected to the brain?

Explain shale, What is shale? It is a fine-grained, earthy, sedimentary...

What is shale? It is a fine-grained, earthy, sedimentary rock like clay, but produced in thin layers.

Explain thiamin (vitamin b1), Thiamin (vitamin B1) Thiamin was  first  ...

Thiamin (vitamin B1) Thiamin was  first  isolated  in  1926 from rice polishing by  Jansen  and Donath.  Its empirical formula was established  in  1931  by  Windaus  and  co-w

Drinking straw hydrometer, Drinking straw hydrometer Procure a drinking...

Drinking straw hydrometer Procure a drinking straw or a stout natural straw about 20 cm long. If it is not 'water-proof' dip it in melted candle wax and permit it to dry. Seal

Explain the blood urea nitrogen (bun), Explain the Blood Urea Nitrogen (BUN...

Explain the Blood Urea Nitrogen (BUN) It is a test that measures the amount of urea nitrogen in the blood. Urea is formed in the liver as an end product of protein metabolism a

Medieval science, Medieval Science: We can  record  the sum total  of  ...

Medieval Science: We can  record  the sum total  of  the medieval  achievement  in  the natural sciences in a few lines. It can be put down as a few notes on natural history  a

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