Active Immunity: the body makes its own antibodies in response to a certain antigen. it can be naturally acquired or achieved through vaccination.
Vaccination: it is an attenuated form of a disease; it is a form of an antigen that gives you immunity against a certain disease and it prevents the disease but not cure it. Vaccination is the fact of giving a vaccine by injection or inhalation. In fact, when a specific vaccine is injected into your body, your body forms antibodies against the pathogen, so that if you later encounter the same antigen, your bloodstream already has antibodies that are needed to fight and destroy it.
Vaccines have helped reduce cases of childhood diseases such as: Measles, Tetanus, Rubella,etc...
Passive Immunity: it doesn't last for too long as active immunity. Well, you were born with all the antibodies that your mother had in her blood. However, these antibodies stayed with you for only few months. Also, nowadays, passive immunity can be achieved by injecting a patient with a serum containing antibodies directly used against a specific disease.
Source of image: 25. Immunity: Active and Passive (www.web-books.com/eLibrary/ON/B0/B8/25MB8.html )
Several diseases have symptoms similar to those of measles.Why doesn't the measles vaccine protect you from all of these diseases???
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