Immunization
Children's Health Children's Vaccines Reference 9 Vaccines Teens & Preteens Need Immunizations and Vaccines Immunizations , or vaccines as they're also known, safely and effectively use a small amount of a weakened or killed virus or bacteria or bits of lab-made protein that imitate the virus in order to prevent infection by that same virus or bacteria. When you get an immunization , you're injected with a weakened form of (or a fragment of) a disease. This triggers your body's immune response, causing it to either produce antibodies to that particular ailment or induce other processes that enhance immunity. Then, if you're ever again exposed to the actual disease-causing organism, your immune system is prepared to fight the infection. A vaccine will usually prevent the onset of a disease or else reduce its severity. Why Should Someone Get Immunized? The goal of public health is to prevent di...
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