How do vaccines protect individuals from infectious diseases?

Question

How do vaccines protect individuals from infectious diseases

Answer 1

Bacteria, viruses and other germs threaten your body every day. But when a disease-causing microorganism enters your body, your immune system mounts a defense, producing proteins called antibodies to fight off the invader. The goal of your immune system is to prevent illness by destroying the foreign invader or rendering it harmless.

Vaccines stimulate your body's immune system.
Vaccine-induced immunity results after you receive a vaccine. The vaccine triggers your immune system's infection-fighting ability and memory without exposure to the actual disease-producing germs. A vaccine contains a killed or weakened form or derivative of the infectious germ. When given to a healthy person, the vaccine triggers an immune response. The vaccine makes your body think that it's being invaded by a specific organism, and your immune system goes to work to destroy the invader and prevent it from infecting you again.

If you're exposed to a disease for which you've been vaccinated, the invading germs are met by antibodies that will destroy them. The immunity you develop following vaccination is similar to the immunity acquired from natural infection.

Answer 2

Most vaccine-preventable diseases are caused by germs that are called “viruses” or “bacteria.” Vaccines to help prevent these diseases generally contain weakened or killed viruses or bacteria specific to the disease. Vaccines help your body recognize and fight these germs and protect you each time you come in contact with someone who is sick with any of these diseases.

Answer 3

by giing vaccine the body is given bacteria in ver small dose and it help the body to produce antibodies in that way patient become restinat to disease

Answer 4

Vaccines provide anti-bodies in the body which fight the disease causing parasite.

Answer 5

by vaccination ......which is actually dead or inactive germs of the diseases injected in our body........the body produces antibodies to fight these germs..........& hence since the antibody is already in our body ...........we dont suffer 4rm dat disease i.e.when the active germs invade our body, they r automatically destroyed by the antibodies(leucocytes)

Answer 6

by settin immune response in the body

Answer 7

as above