I WONDER - How Does The Immune System React When I Am Unwell? Me Pregunto - Cómo Reacciona El Sistema Inmunológico Cu

The video explains how flu symptoms indicate the immune system's response. Fever is a result of the immune system's effort to fight infection by raising body temperature, creating an environment unfavorable for viruses and bacteria. Once the fever subsides, it signifies the immune system has successfully eliminated the harmful bacteria, leading to recovery.

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