NATS 1670 Lecture Notes - Chemokine Receptor, Tuberculosis, Toxoplasmosis

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Normal immunity: after already having an infection, when you come with the same pathogen again you wont get infected. People with hiv/aids don t have such an ability and we cant activate their immune system. In the past if they were exposed to antigens their memory cells wont be activated because of their lack of immune system. Antibodies and b cells decline as well and you will have less antibodies and less of an ability to activate your memory cells. Hiv attacks helper t cells, crippling the specific immunity. During the later stages decrease in cytotoxic t cells and antibodies production. Candidiasis: found in the lung and esophagus (oral) Herpes simplex (won t go away for a long period of time) Shingles (get it at an early age) Toxoplasmosis: infection during pregnancy can cause miscarriages/ it can infect the brain and create colonies of the infection. Pneumoncystis carinii pneumonia(unique to people with aids.

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