EVERYDAY SCIENCE

Detailed explanation-1: -Vaccination is the administration of a vaccine in the human body. It can be given either orally or in injection form. Vaccines boost our immune system by developing immunity against disease-causing pathogens. Vaccines prevent us from many fatal diseases.

Detailed explanation-2: -Vaccines help your immune system fight infections faster and more effectively. When you get a vaccine, it sparks your immune response, helping your body fight off and remember the germ so it can attack it if the germ ever invades again.

Detailed explanation-3: -Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine.

Detailed explanation-4: -Two doses of MMR vaccine are 97% effective against measles and 88% effective against mumps. MMR is an attenuated (weakened) live virus vaccine. This means that after injection, the viruses cause a harmless infection in the vaccinated person with very few, if any, symptoms before they are eliminated from the body.

Detailed explanation-5: -Subunit, recombinant, polysaccharide, and conjugate vaccines One limitation of these vaccines is that you may need booster shots to get ongoing protection against diseases. These vaccines are used to protect against: Hib (Haemophilus influenzae type b) disease.