Why Do Human Beings Need Vaccines?
Vaccines are given to the small children to protect them from different kinds of diseases. When germs enter the body, the immune system recognizes them as foreign substances (antigens). The immune system then produces the right antibodies to fight the antigens. That immune system is protected by the vaccines. By giving the vaccine one can fight against the diseases and bacteria to enter into the body of the children. Vaccines not only help keep your child healthy, they help all children by stamping out serious childhood diseases.
Vaccine works in such a way that it is through the vaccine the antibodies which are related to one particular virus are getting passed into the body by giving the vaccine. By this, if due to some reason if those particular virus is affected to the body of the children, these antigens acts as a protection wall and fights against those viruses. Vaccine is a dead cell or a useless cell which protects the body from getting attacked to a particular virus which enters the body and damages the health. That antigen which is responsible for the attack of the disease is given in needed quantity. By passing that antigen into the body, the body gets ready to that level for protection which is needed to fight against the virus that entered the body. Finally, the body gets ready to the extent where it can fight strongly against the virus with full resistance power. In this way, to increase the resistance power in the body, the vaccines are given to the children.