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

Define the utilization of fatty acids, Define the Utilization of Fatty Acid...

Define the Utilization of Fatty Acids In the presence of oxygen, fatty acids are utilized to provide energy and heat. Waste products produced are carbon dioxide and water. Fatt

Mineral to be strongly magnetic other than magnetite, What is the only usua...

What is the only usual mineral to be strongly magnetic other than magnetite: Pyrrhotite

Feeding in animals, feeding modes of insect,reptiles,amphipians,bird,fish a...

feeding modes of insect,reptiles,amphipians,bird,fish and mammals

Lead times of scientific development, Lead Times of Scientific Development:...

Lead Times of Scientific Development: When we compare the current status of scientific development and technological fall-out from the same, we find that the lead time of scien

Explain the mechanism of phagocytosis, Explain the Mechanism of Phagocytosi...

Explain the Mechanism of Phagocytosis In phagocytosis, the organism is entrapped into vacuoles known as "Phagosome". The cytoplasmic granules, organelles or lysosomes fuse with

Cells, the structures that makes up a cell are called

the structures that makes up a cell are called

Learning theory, explain what ausubel''s theory say about learning

explain what ausubel''s theory say about learning

Explain saliva - external defence mechanism, Explain Saliva - External Defe...

Explain Saliva - External Defence Mechanism Saliva contains microorganisms which are not the normal inhabitants. Dead microbes are passively flushed by the saliva and are swall

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