Compare Passive And Active Acquired Immunity

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Q1. Distinguish between acquired and natural immunity.

Acquired immunity is the immunity that our body gains and develops over time. When pathogens are present in the body our body learns and remembers how to destroy these pathogens. Acquired immunity compromises all our specific immune responses which includes the generation of antibodies that neutralize the toxins produced by the pathogen. Acquired immunity means our body is able to distinguish between different types of pathogens, differentiate between foreign particles and cells of our own body and recall all immunological responses and act accordingly to the specific pathogen. The third line of defense is involved which is acquired and specific.

On the other hand natural immunity is the immunity that occurs naturally in our bodies. Our natural immune system includes all our non-specific immune responses such as natural barriers in place which are referred to as the first and second line of defense. These are systems which naturally are present to non-specifically target any foreign particles which may enter the body. Basically natural immunity is inheritable and present from birth and also remains throughout a persons lifetime and it protects the individual from contraction of diseases or other organisms. Acquired immunity develops during a lifetime and can be short-lived or life-long and protects the individual from pathogens using memory T cells which recognise the antigen if it is re-introduced.

Q2. Compare passive and active acquired immunity.

There are two main branches that both passive and active acquired immunity can fall under, Active and Passive. Naturally acquired active immunity occurs when the individual is exposed to a pathogen, becomes infected with the di...

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...ination is administered.

From day 0 which is when the vaccine is introduced to the body there is a climb in the production of antibodies due to the immune response as a result of the vaccination. The immune system is producing antibodies to fight the pathogen that has entered the body. After the pathogen is fought off the number of antibodies are decreasing. At day 21 the booster vaccination is applied to increase the number of antibodies yet again. The booster vaccination is enough to cause the immune response to create a concentration of antibodies which spikes even higher than the amount of antibodies produced at the initial vaccination. The amount of antibodies created by the booster vaccination is sufficient for up to and past 45 days after the initial vaccination. The individual now possesses immunity to the disease in which they have been vaccinated against.

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