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Biology (Definitions: (Antibody - White blood cells produce the Y shaped…
Biology
Definitions:
Antibody - White blood cells produce the Y shaped cells which lock on too antigens and destroy them.
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Vaccination - Dead or inactive pathogenic cells are injected into the body to develop immunity to a disease in a healthy person.
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Antibiotics - These medicines kill bacterial pathogens that cause communicable disease e.g penicillin.
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Placebo - A medicine that does not contain the active drug being tested, used in clinical trials of new medicines.
Double blind trail - Neither the doctor or the patients know who is taking the drug or the placebo. This avoids bias.
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How a vaccine works:
Step 4 - A type off white blood cell called a memory cell remembers the specific antibody needed too make for that pathogen.
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Step 5 - If the pathogen enters the body the memory cell would produce the right antibodies much more rapidly.
Step 1 - A vaccine is given usually in the form of an injection this contians a harmless pathogen, antigen or toxin
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