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AIDS (Acquired Immunodeficiency Syndrome) (Downstream (HIV has attacked…
AIDS
(Acquired Immunodeficiency Syndrome)
Upstream
Progressive impairment of the immune system
HIV attacks helper T lymphocytes
HIV (Human Immunodeficiency Virus)
Sexual contact
(Semen and Blood)
Drug Use
(Sharing of needles)
Human to Human bodily fluid contact with an infected person
Birth (Blood exchange from placenta) or Breastfeeding
Healthcare workers (from an infected patient: accidental needlesticks, laboratory specimens, blood spills, or mouthpieces and resuscitation bags.) [Universal Precautions greatly lower the risk of healthcare infections]
Downstream
HIV has attacked helper T lymphocytes
Immune system no longer has properly functioning plasma cells or T cytotoxic lymphocytes
Immediate symptoms
Swollen Lymph Nodes
Tiredness
Fever
Rash
Sores
Immune system is not as efficient or "smart" as before
AIDS doesn't directly cause death, weakened immune system causes death by common diseases that healthy people can fight off with ease
HIV a virus that causes AIDS
Immune System
Adaptive
Bone Marrow
Produces "B Lymphocytes"
Plasma Cell
Produces anibodies
B Memory
Recognizes antigens that need to be eliminated
Thymus
Produces "T Lymphocytes"
T Helper
Activation of plasma cells
Activation of T cytotoxic cells
T Regulatory
Slows or stops activity of immune system
T Cytotoxic (Killer)
Kills invaded body cells and cancer cells
Innate
Surface Barriers
Skin
Mucus
Hair
Gastric Juice
Tears
Saliva
Urine
Internal Defenses
Phagocytes
Natural Killer Cells
Inflammatory
Antimicrobial Proteins
Interferons
Mobilize Immune system
Complement
activates inflammatory response
lyses and kills certain bacteria
Fever