After infection occurs, the first line of defence by a host against invasion of a parasite is an inflammatory response.

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The inflammatory response is the first line of defense by a host against invasion of a parasite. It involves the activation of various immune cells and the release of cytokines and chemokines that recruit and activate additional immune cells to the site of infection. The inflammation helps to contain the infection and prevent its spread to other parts of the body.

After Infection Occurs, the First Line of Defence by a Host