Repeated attacks of the same disease, however, be

The immune response of the body >> << can not prevent disease, but they help the body recover from illness.

When the body is exposed to the disease for the first time

takes a while for the immune response to work by helping the body

restore. Repeated attacks of the same disease, however, be considered

faster. In fact, when the disease affects

repeatedly, the body's immune system may actually prevent disease

before symptoms appear. Finally, the body produces

complete resistance to disease. This impedance can be achieved either by

active or passive immunization. Active immunization is the term >> << is used to describe the state when its own immune system

activated and the immune response produced. Active immunization >> << can be achieved by natural immunization or vaccination >>. Man develops

<< natural immunization in childhood. Diseases such as chicken pox, which usually occurs in childhood >> << are never repeated, so that the immune system develops

life back. Vaccination is immunization, which induced

intentionally. This >> << done with vaccines. Vaccines are substances that have a structure similar to

production of disease. Vaccines

inserted into the body, but, unlike pathogenic agents

they do not cause disease in the body, though

structurally similar to disease-causing agents. Vaccines such >> << as little as for tetanus and pertussis containing chemically

killed bacteria or other pathogenic organisms. Another type of vaccine >> << as oral polio vaccine contains a weakened form

living organisms that have been genetically selected so that they do

not cause disease. Passive immunization

another way to prevent diseases. Here >> << person receives antibodies that are created in another person or animal. This method is commonly used as natural immunization

can not be used or when the natural process of immunization far

slower than lasix drug interactions the rate at which the disease spreads. This method >> << but has several disadvantages, most importantly, what effect >> << vaccine is temporary. Reuse

passive immunization, but not recommended. . << >>