EVERYDAY SCIENCE

Detailed explanation-1: -The infection-like state caused by the vaccine never causes illness, but it activates our immune system to produce antibodies and T-lymphocytes. Once this imitative infection effect wears off, remaining T and B lymphocytes will fight against future infection.

Detailed explanation-2: -Responds by making antibodies to the germ in the vaccine, just as it would for the real germ. Remembers the germ and how to destroy it. That way, if you are ever exposed to the disease-causing germ in the future, your immune system will be able to quickly destroy it before it has a chance to make you sick.

Detailed explanation-3: -Vaccines create antibodies that allow your body to protect itself from future infections without actually getting sick. Previously developed vaccines contain very small amounts of viruses or bacteria that are dead or greatly weakened.

Detailed explanation-4: -Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach your body’s immune system to recognize and defend against harmful germs. For example, there are vaccines to protect against diseases caused by: Viruses, like the ones that cause the flu and COVID-19.

Detailed explanation-5: -A vaccine is defined as any substance which is used to stimulate the production of antibodies, in turn providing immunity against one or a few diseases. A vaccine is defined as a biological preparation formulated to provide acquired immunity for a particular disease.