Question

introduction to vaccine of 100 words​

Answer 1

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A vaccine is a substance that is introduced into the body to prevent infection or to control disease due to a certain pathogen, which is a disease-causing organism, such as a virus, bacteria or parasite. The vaccine “teaches” the body how to defend itself against the pathogen by creating an immune response

Answer 2

• A vaccination is a biological preparation that gives people active acquired immunity against a specific infectious illness.
• A vaccination usually comprises an agent that looks like a disease-causing germ and is commonly manufactured from weakened or destroyed microbes, their toxins, or one of their surface proteins.
• The agent induces the body's immune system to detect and eliminate the agent as a threat, as well as any linked bacteria that it may meet in the future.
• Some vaccinations provide total sterilization immunity, which means that infection is fully avoided.