Antibodies protect people from disease because they are special defenders designed to fight a particular virus. Vaccines introduce small amounts of the virus into the body so it can build up antibodies against the disease.
There is nothing like killed disease. You have the killed microorganisms. These killed microorganisms are injected to the person. That gives rise to formation of the antibodies. These antibodies protect the person from the attack of the live microorganism.
No, that is temporary immunity received from another person or from antibodies.
antibodies
Antibodies are specific. This means that they "match" the infesting disease (antigen). The antigen causes the immune system to make the antibodies which will attack the disease. Without the antibodeis, the body will not be able to fight off and destroy the disease.
Immunity to a disease is achieved through the presence of antibodies to that disease in a person's system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific. For example, measles antibody will protect a person who is exposed to measles disease, but will have no effect if he or she is exposed to mumps. There are two types of immunity: active and passive. Active Immunity Active immunity results when exposure to a disease organism triggers the immune system to produce antibodies to that disease. Exposure to the disease organism can occur through infection with the actual disease (resulting in natural immunity), or introduction of a killed or weakened form of the disease organism through vaccination (vaccine-induced immunity). Either way, if an immune person comes into contact with that disease in the future, their immune system will recognize it and immediately produce the antibodies needed to fight it. Active immunity is long-lasting, and sometimes life-long.
After a person has had a disease, the lymphocytes remain to produce more antibodies for that pathogen if the disease is encountered again. This is called IMMUNITY.
Passive immunity
passive immunity
passive immunity is short term it could either be from a mom giving the antibodies from her blood to the baby in her womb, and when the baby gets out, it still has some of the anitbodies to protect it (for a couple days/ months/ years) or antibodies are injected into a person (this is not a vaccine) to help cure the illness (rabies is an example of a disease where people inject the antibodies)
Vaccination entails giving the person a weakened form of the disease. This triggers the body's immune system to build up antibodies to the disease. Then if the real disease tries to attack the body, it is already ready to fight back.
No, it isn't a disease. To put it simply, a hypochondriac is a person who has a false belief that he or she has a disease or abnormal condition.
true.