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Vaccine
01
ワクチン, 予防接種薬
a substance, often administered through needle injections, that stimulates the body's immune response against harmful diseases
What is a "vaccine"?
A vaccine is a substance given to stimulate the body's immune system to protect against a particular disease. It typically has a small, weakened, or a non-active part of the virus or bacteria that causes the disease. When a person receives a vaccine, their immune system recognizes the foreign substance as a threat and produces antibodies to fight it. This process prepares the immune system to respond quickly if the person is exposed to the disease-causing organism in the future, preventing illness or reducing its intensity.
Example
The new vaccine was developed to protect against the flu virus.
新しいワクチンがインフルエンザウイルスから身を守るために開発されました。
Childhood vaccines have significantly reduced the incidence of once-common diseases.
子供のワクチンは、一度は一般的だった病気の発生率を大幅に減少させました。
