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 haloenzyme, Haloenzyme :- A  whole  enzyme,  as a  complete  and...

Haloenzyme :- A  whole  enzyme,  as a  complete  and  functional molecule. Generally, a holoenzyme consists of a polypeptide portion (an apoenzyrne) and at least one cofactor or

Explain scurvy, Scurvy  Disease occurs due to vitamin C deficiency.

Scurvy  Disease occurs due to vitamin C deficiency.

State the types of soil, Soil Types of India Soils were classified as ...

Soil Types of India Soils were classified as urvara (fertile) and anuvara or usara (barren) in the ancient period. The soils were then given local names by cultivators like, M

Sociology, what is the conflict perspective on cohabitation

what is the conflict perspective on cohabitation

What is extinction?, What is extinction? When did it happen? What are some...

What is extinction? When did it happen? What are some human activities that lead into extinction

Determine the value of departure the minimum water flow, 1) Consider the di...

1) Consider the diagram below, where a pump is used to draw water from a lake to feed an irrigation system. a) Which of the points of departure the minimum water flow takes

Explain types of steroids, Steroids are of many types . These are given be...

Steroids are of many types . These are given below: a)  Sterols :  Cholesterol, ergosterol. b)  Bile acids :  Glycocholic acid, taurocholic acid. c)  Hormones  :  Testoste

Physiology-based pharmaco-kinetic (pbpk) models, Answer the following quest...

Answer the following questions: (a) What are the objectives of the Bischoff PBPK model? What useful predictions is the model capable of making? How is the model able to transla

Wiring a plug to an appliance, WIRING A PLUG TO AN APPLIANCE In the...

WIRING A PLUG TO AN APPLIANCE In the previous activity, you worked out the operating current of different electrical equipment/appliances and suggested proper fuse and plug

Define the levels of drugs in urine, Define the Levels of Drugs in Urine ...

Define the Levels of Drugs in Urine Levels of alcohol and barbiturates (a group of drugs derived from barbituric acid that is used to sedate, to control convulsions or to induc

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