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Difference between Active and Passive Immunity

Immunity is defined as the body’s ability to destroy pathogens or other foreign materials and to prevent further cases of certain infectious diseases. The different types of immunity or defence mechanism: Innate immunity and Adaptive or Acquired Immunity.
active and passive immunity
Innate immunity is inherited by the organisms from the parents and protects it from birth throughout life. It is also known as innate or natural or familial or genetic immunity. It is of two types external (first line of defence) and internal (second line of defence). Acquired immunity  is also known as specific defence mechanism or third line of defence. It is of two types: natural or active and artificial or passive. Active immunity is produced by clonal selection and expansion. Passive immunity occurs when antibodies produced artificially are injected into a person to counteract antigens such as snake venom, rabies, tetanus toxin and Salmonella infection.
active and passive immunity
Active Immunity vs Passive Immunity
Active Immunity
1. It is produced due to contact with pathogen or its antigen.
2. Immunity is not immediate. A time lapse occurs for its development.
3. It lasts for sufficiently long period, may be life long.
4. Antibodies are produced by the body in response to pathogen or antigen.
5. Side effects are very few.
Passive Immunity
1. It is produced due to antibodies obtained from outside
2. Immunity develops immediately.
3. It lasts for a few days
4. Antibodies are obtained from outside.
5. At times the body reacts to the introduction of antisera. It is called serum sickness.

26 comments:

  1. Simplified and very easy to understand. Thank you for breaking it down:)

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  2. Simplified and easily understood. Thank you for breaking down the different types of immunity.

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  3. Simplified and very easy to understand. Thank you for breaking it down:)

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  4. Simplified and very easy to understand. Thank you for breaking it down:)

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  5. Simple and easy to understand. Thanks for breaking it down!

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  6. Really helpful
    Tysm..

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  7. VERY VERY SIMPLIFIED ANSWER IT HAS HELPED ME A LOT

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  8. Couldn't understand video good written work tho

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  9. Everyone copy-pastes each other's comments! �� Btw, thank you for the stuff!

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  10. well written and explained, easy to understand. Unrelated comment but a lot of the comments were pretty much the same at the top :P

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  11. just what i needed thankyou

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  12. You know your website sucks when you need to get the same person to write the same positive messages to make it look good. The content is useful, but that's just a petty technique for an otherwise average website.

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  13. Thank you for braking it down it is very easy to understand thank you sir

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  14. I want the exact definition of active and pasiive immunity

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  15. Easy to understand, this is really precise stuff! Thank you:), it really helped.

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  16. THE OFFICIAL DARSHH NAKASHe15 February 2018 at 00:27

    thank you so much for making it soo easy this was one of my biggest problems

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  17. these points give us the basic idea. Thanks.

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  18. V simple and is able to understand easily.

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