Immunity:
Everyone's immune system is different but, as a general rule, it strengthens during adulthood as, during this time, we are exposed to many viruses and acquire more antibodies.
That is why teenagers and adults are often less likely to get sick than children.
Once an antibody is produced, a copy resides in the body so that when the same antigen is re-emerged, it reacts very quickly.
This is why with some diseases, such as chickenpox, you get it only once as the body has a stored chickenpox virus, ready and ready to destroy it the next time it arrives. This is called the immune system.
There are three types of human protection called innate, adaptive, and passive:
Internal defense
We are all born with a degree of self-defense against invaders. The human immune system, like most animals, will attack foreign invaders from day one. These natural defenses include the external barriers of our body - the first line of defense against bacterial infections - such as the skin and mucous membranes of the throat and intestines.
This response is general and unspecified. When the pathogen is able to defend itself against the immune system, a compromised or acquired immune system is involved.
Variable defense (detected)
This immunity protects against germs as we move through life. As we become infected or get vaccinated, we build a library of antibodies to various viruses. This is sometimes referred to as immunological memory because our immune system remembers earlier enemies.
Immune system
This type of defense is "borrowed" from another source, but it does not last forever. For example, a baby receives antibodies from its mother through the placenta before birth and breast milk after birth. This immune system protects the baby against certain infections in the early years of life.
Vaccination
Vaccination produces weak antigens or viruses in a person in such a way that the person does not become ill but continues to produce antibodies. Because the body stores copies of antibodies, it is protected if the threat arises again later in life.
That is why teenagers and adults are often less likely to get sick than children.
Once an antibody is produced, a copy resides in the body so that when the same antigen is re-emerged, it reacts very quickly.
This is why with some diseases, such as chickenpox, you get it only once as the body has a stored chickenpox virus, ready and ready to destroy it the next time it arrives. This is called the immune system.
There are three types of human protection called innate, adaptive, and passive:
Internal defense
We are all born with a degree of self-defense against invaders. The human immune system, like most animals, will attack foreign invaders from day one. These natural defenses include the external barriers of our body - the first line of defense against bacterial infections - such as the skin and mucous membranes of the throat and intestines.
This response is general and unspecified. When the pathogen is able to defend itself against the immune system, a compromised or acquired immune system is involved.
Variable defense (detected)
This immunity protects against germs as we move through life. As we become infected or get vaccinated, we build a library of antibodies to various viruses. This is sometimes referred to as immunological memory because our immune system remembers earlier enemies.
Immune system
This type of defense is "borrowed" from another source, but it does not last forever. For example, a baby receives antibodies from its mother through the placenta before birth and breast milk after birth. This immune system protects the baby against certain infections in the early years of life.
Vaccination
Vaccination produces weak antigens or viruses in a person in such a way that the person does not become ill but continues to produce antibodies. Because the body stores copies of antibodies, it is protected if the threat arises again later in life.
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