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preventing and treating diseases., How vaccines work: A syringe injects an…
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How vaccines work: A syringe injects an altered form of the pathogen. Then, white blood cells release complementary antibodies to the specific antigen. Then, they attach and clump pathogens together, and finally, white blood cells engulf the pathogen by phagocytosis.
MRSA is a strain of bacteria that is resistant to antibiotics. To reduce the rate of it developing, doctors shouldn't prescribe antibiotics unless they are really needed, or for non-serious infections. They also shouldn't be prescribed for viral infections, as they won't work. Patients must make sure that they complete their course of antibiotics so that all bacteria are killed and non survive to form resistant strains.
Pathogens are microorganisms that cause disease. They can be spread through direct contact, air & water, or through a vector.
Normally, stage 3 of the drug development process is a double-blind trial. Some patients are given a placebo, which doesn't contain the drug, and then some patients are actually given the drug. Patients are randomly allocated to the two groups, so the doctors and patients don't know who's received the drug.