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  2. Active immunization - Wikipedia

    en.wikipedia.org/wiki/Active_immunization

    Active immunization is the induction of immunity after exposure to an antigen. Antibodies are created by the recipient and may be stored permanently. [citation needed]Active immunization can occur naturally when microbes or other antigen are received by a person who has not yet come into contact with the microbes and has no pre-made antibodies for defense.

  3. Immunity (medicine) - Wikipedia

    en.wikipedia.org/wiki/Immunity_(medicine)

    Adaptive immunity can be acquired either 'naturally' (by infection) or 'artificially' (through deliberate actions such as vaccination). Adaptive immunity can also be classified as 'active' or 'passive'. Active immunity is acquired through the exposure to a pathogen, which triggers the production of antibodies by the immune system. [7]

  4. Adaptive immune system - Wikipedia

    en.wikipedia.org/wiki/Adaptive_immune_system

    Artificially Acquired Active Immunity – is done by vaccination (introducing dead or weakened antigen to the host's cell). Artificially Acquired Passive Immunity – This involves the introduction of antibodies rather than antigens to the human body. These antibodies are from an animal or person who is already immune to the disease.

  5. Active vs. Passive Immunity - AOL

    www.aol.com/news/active-vs-passive-immunity...

    The human immune system is a complex defense mechanism that aims to keep us healthy and safe from viruses, bacteria and all other types of pathogens we might come into contact with. What Is Active ...

  6. Immune system - Wikipedia

    en.wikipedia.org/wiki/Immune_system

    Active immunity can also be generated artificially, through vaccination. The principle behind vaccination (also called immunization ) is to introduce an antigen from a pathogen to stimulate the immune system and develop specific immunity against that particular pathogen without causing disease associated with that organism. [ 131 ]

  7. Artificial induction of immunity - Wikipedia

    en.wikipedia.org/wiki/Artificial_induction_of...

    The earliest recorded artificial induction of immunity in humans was by variolation or inoculation, which is the controlled infection of a subject with a less lethal natural form of smallpox (known as Variola Minor) to make him or her immune to re-infection with the more lethal natural form, Variola Major.

  8. Complement system - Wikipedia

    en.wikipedia.org/wiki/Complement_system

    Scheme of the complement system. The complement system, also known as complement cascade, is a part of the humoral, innate immune system and enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane. [1]

  9. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    If there is already an active hint on the board, a hint will show that word’s letter order. Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night.