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Immune System cont.

Learn how vaccines can strengthen the immune system to prevent future infections without causing the disease. Explore diseases like smallpox, rinderpest, and polio, as well as allergies and organ transplant challenges. Discover the impact of HIV on the immune system.

michellegutierrez
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Immune System cont.

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  1. Immune System cont.

  2. Vaccines By infecting people with a weakened or dead form of a pathogen their body can create the right B and T cells to prevent future infection without ever having the disease. Smallpox – 1977 Rinderpest – 2010 Polio - ?

  3. Allergies An allergy is a high sensitivity to some substances, the substance acts as an antigen and triggers an immune response. Histamine is a chemical the body releases to fight off invaders; it causes a running nose and watery eyes. Many people who have allergies take antihistamine drugs to prevent this response.

  4. Organ Transplant Transplanting is when an organ (such as a kidney) is taken out one person is put into another person. One of the difficulties of transplants is rejection, this occurs when the immune system of the recipient identifies the organ as an antigen and attacks it.

  5. AIDS HIV is the virus which causes AIDS. It attacks a type of T cells called helper T cells. Without helper T cells the immune system can not activate T or B cells and can not fight off other infections.

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