Definition: Vaccaria is a Latin term that describes the process of vaccination, which involves the administration of a weakened or killed form of an organism to prevent the spread of disease. This can be particularly useful in preventing the transmission of infectious diseases like influenza and measles among individuals who have had previous exposure to these viruses. Vaccines are typically administered through injection or oral ingestion, usually at regular intervals (usually every 3-5 years) to stimulate the immune system and prevent illness.
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