What is primary immune response?

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(C) The immune response of the body to a pathogen is classified into two types based on the encounter: $1$. Primary Immune Response: This occurs when

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Immunity observed upon the first encounter with a pathogen.

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(C) The immune response of the body to a pathogen is classified into two types based on the encounter: $1$. Primary Immune Response: This occurs when the body encounters a pathogen for the first time. It is characterized by a low intensity of response. $2$. Secondary Immune Response: This occurs upon subsequent encounters with the same pathogen. It is highly intensified due to the memory of the immune system. Therefore,the primary immune response is the response observed upon the first encounter with a pathogen.

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