What is the difference between active and passive immunity? What is active and passive immunity?

Passive and active immunity - similarities and differences.

Immunity is a complex mechanism that helps the body survive among millions of infections and viruses. Scientists have spent more than a decade to master this mechanism. But even today there are many unrevealed secrets that scientists are working on. In this article we will tell you what the difference is between active and passive immunity, as well as how to subdue them, thereby becoming less susceptible to infections and diseases.

What is active immunity?

Active immunity is an immunity that appears after a person has been ill with a particular disease. This can be a complete infection of the disease and victory over it with the help of the body’s resources and medicines, or it can be vaccination, the debate about which has not stopped for many years.

Active immunity

What is passive immunity?

Passive immunity is an immunity that appears after a ready-made antibody is introduced into the human body. This is not vaccination, although many are mistakenly confused. Passive immunity enters the human body at birth from a mother, with a blood transfusion, as well as in the case of artificial administration.

Passive immunity

What is the difference between active and passive immunity?

The question arises, what is the difference between active and passive immunity and why do we need all these difficulties with vaccination or diseases if we can introduce a ready-made antibody and protect ourselves from viruses and infections? Everything is quite simple - active immunity is produced independently by the body, regardless of how it got infected (on its own by accident, on purpose or when a small particle of infection - a vaccine) is injected. After that, B-lymphocytes remember the information for years and when they encounter the same infection (not a mutation), the body will cope as quickly as possible, so that the person himself will not notice.

Passive immunity is a ready-made antibody that is in the body for a short time and is not remembered by B-lymphocytes. Therefore, after the complete removal of the antibody from the body, it becomes completely unprotected, as before input.

A healthy lifestyle is the best companion to boost immunity

If you already have a question - why do you need passive immunity, because it seems completely unnecessary. Passive immunity protects the baby from all external risks until the body itself is strengthened. In the case of a blood transfusion, this is a conditional immunity, which in most cases does not affect a person’s life. But there is an artificial introduction of antibodies into the body when a person is at risk and there is a chance that infection will lead to death.

In this article we examined the question of what is the difference between active and passive immunity, but it is worth remembering that there are not two, but much more varieties of immunity, and we can help our body strengthen and be resistant to most diseases.

Remember that morning exercises, proper seasonal nutrition, fresh vegetables and fruits are the key to health and maintaining immunity at a decent level. This will not create active immunity for you, but when faced with infections and viruses, it will help to quickly overcome the disease with minimal losses!

Watch the video: Difference between Active immunity and Passive immunity (February 2020).