Skip to 0 minutes and 14 seconds Nature of immunity, could be natural or artificial. Natural immunity is derived or developed through exposure to a natural process. For example, a disease. On the other hand, artificial immunity is developed through deliberate action such as vaccination or immunization. Immunity could be innate or acquired. Innate immunity as we mentioned earlier is not specific generally. And acquired immunity is learned or adapted. Immunity could be active. The active immunity is acquired through exposure of our body to a pathogen. The immunity takes time to develop, but maybe long-lasting or even lasting for the length for the whole life. Passive immunity. Passive immunity is produced in a body other than one’s own. For example, the immunity coming from the mother.
Skip to 1 minute and 36 seconds The immunity is immediate but short-lived. It could be several months or perhaps at mostm a year. By the way, an antiserum that is the anti-venom for snakebite, for example, is a passive immunity developed in human or animal. Continue with nature of immunity. It could be short-lived. For example, the immunity passed on to the baby by the mother or the anti-venom and their Sara. There are short-lived or could be long-conferred. For example, the antibodies developed to the childhood diseases such as chickenpox or measles And by the way even fifth century before Christ, the Greek physicians already noted that the people who had recovered from the plague will be immune from it.
Skip to 2 minutes and 45 seconds So thanks to God that if you would only die once from the plague. And that is if you don’t die then you are protected from it forever. So to summarize, natural and acquired immunity. Natural immunity could be active. Natural immunity could be passive. Acquired immunity could be active or passive.
Skip to 3 minutes and 17 seconds By the way, they may ask a question: so what is the difference between a vaccine and an antiserum? Well, vaccines are generally prophylactic or preventive purpose and antiserum are for treatment, for example, the anti-venom for a snakebite.
Different types of immunity are compared, natural vs artificial, innate vs acquired, active vs passive, with considerations of origin, acquisition time, onset and duration of immunity.
Natural immunity occurs through contact with a disease causing agent, when the contact was not deliberate. On the other hand, artificial immunity develops only through deliberate actions of exposure. Innate immunity is already existent in the body, whereas adaptive immunity is created in response to exposure to a foreign substance. Active immunity is developed due to the production of antibodies in one’s own body, while passive immunity is developed by antibodies that are produced externally