Immune System

Organs

Bone Marrow

Spleen

Tonsils

Adenoids

Thymus

Large & Small Intestine

Appendix

Peyer's Patches

Blood Tissue

Cells

Monocytes

Lymphocytes

Neutrophils

Basophils

Eosinophils

Molecules

Cytokines

Complement Proteins

Antibodies

Fibrinogen

Lysozyme

Platelets

Immunity

The ability of an organism to resist a particular infection or toxin by the action of the components of its immune system

The functioning of immunity in an organism depends on the successful or unsuccessful functioning of the cells, blood tissue, organs and molecules in the immune system

What are the factors that make an individual vulnerable to infection?

The particular person hasn't taken precautionary measure

The person doesn't have a proper balanced diet

The person had a poor medical history, as other diseases have weakened the immune system

Man-Functional Organ

Lesser No. of Immune Cells

Unhealthy Addiction

Alcohol

Smoking/Vaping

Genetic Mutation

Innate (in born)

Acquired (from surrounding)

The baby is born with natural immunity, and it is carried on till death through some of the parts in the immune system

Immunity, that had been developed in your body, through your lifetime

The anti-body is supplied by the mother

However, the immunity should still be increased in order to provide passive immunity as people/things in the surrounding are already affect, and eventually are at risk of affecting the baby

Skin

Active (own anti-bodies)

It is developed, after the entry of a pathogen

The pathogen, is a disease causing organ, that enters the body naturally (natural active) or artificially (vaccination or forcefully given)

Passive (ready-made antibodies)

The immunity, that is passed on by Mother (maternal anti-bodies)

The immunity, provided by another type of source in your surrounding (artificial)

How does a vaccine work?

Why do we take a booster dose?

The immunity, is transferred from one individual to another

The booster shot, is usually taken to remind the immune system, about the particular disease that has to be fought by the body, and the disease for which we need the anti-bodies.

Blood Transfusion (HIV Antigen)

Antigen

The foreign protein, which can enter our body.

The anti-bodies, are made by our body cells

The anti-bodies are used to kill the antigens

The vaccine, enters the human body, recognized by the immune system as a dangerous antigen (it isn't)

The vaccine somewhat tricks the immune system into responding accordingly by prompting it to create anti-bodies for the particular disease if the vaccine enters