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Published byTyrone Preston Modified over 9 years ago
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Syndrome Acquired Immune Deficiency
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AIDS is caused by a virus called HIV
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HIV = Human Immunodeficiency Virus
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Breaks down the immune system HIV
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HIV prefers to attack the following cells Helper T Cells (WBC) Macrophages (WBC) Glial cells (brain)
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Characteristics of HIV 1. Retro virus – RNA virus Entwines itself into the genetic materials of cells 2. Lente virus – May live dormant for years 3. Outer protein coat – Changes rapidly No vaccine 4. Attacks certain cells – Helper T Cells (WBC) Macrophages (WBC) Glial cells (brain)
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AIDS = health condition HIV = virus that causes HIV Disease
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Incubation period = 8-10 years
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Time frame for someone becoming infected before capable of spreading to others is within hours
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Sex – vaginal, anal, oral Needles – drug, piercing, tattoo Blood to blood Mom to baby HIV transmission:
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There are 4 stages of HIV Disease Acute HIV Infection Asymptomatic HIV Infection Chronic Symptomatic HIV Infection AIDS or Advanced HIV Disease
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LEVELS OF HIV DISEASE Acute HIV Infection Flu-like illness or None
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LEVELS OF HIV DISEASE Asymptomatic HIV Infection None
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LEVELS OF HIV DISEASE Chronic Symptomatic HIV Infection fatigue cough night sweats swollen glands weight loss bleeding diarrhea
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LEVELS OF HIV DISEASE AIDS Advanced HIV Disease Pneumocystis carinii pneumonia Kaposi’s Sarcoma Tuberculosis Candidiasis Dementia T cell count below 200 … and more
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Kaposi's sarcoma lesion thrush, a yeast infection of the mouth
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Kaposi Sarcoma
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Continuum of HIV Disease I CAnSx AIDS Asymptomatic HIV Infection Chronic Symptomatic HIV Infection I = Time of Infection C = Communicability (2-4 wks) An = Antibodies (25 days-3 mos) Sx = Symptoms (15+ yrs.) Acute HIV Infection
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A person can be infected with HIV yet test negative for 25 days to 3 months = window period
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Stages of HIV Disease HIV exposure Remain HIV free 1. Acute HIV Infection Able to transmit (becomes communicable) HIV+ if tested (positive HIV antibody test) 2. Asymptomatic HIV Infection 3. Chronic Symptomatic HIV infection 4. AIDS or Advanced HIV Disease May have flu-like symptoms 1-2 weeks Window Period : 25 days to 3 mos. 11 years average 1. Acute HIV Infection Able to transmit (becomes communicable)
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Blood Semen Breast milk Vaginal/ cervical secretions Blood products Body fluids which transmit HIV
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Sweat Tears Urine Saliva Vomit Feces Body fluids with theoretical risk (Possible, highly unlikely, No documented cases)
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AIDS (advanced HIV Disease) diagnosed when … T cell count 200 (1000- 1500 = normal) 1/ 27 opportunistic diseases TB cervical cancer dementia blindness KC PCP
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Testing for HIV clinic health department doctors hospitals Planned Parenthood
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Blood is tested for antibodies
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Anonymous: no name/random number assigned Confidential: some info associated with you
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Blood: tested 3 times --- ELISA 2x Western Blot (more specific to HIV) Orasure: 3-5 minutes between gum and cheek - pulls out mucus Oraquick: blood test with results ~ 20-30 minutes HIV testing
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Best methods for HIV prevention Postponing until monogamous relationship Condoms Don’t share needles Partners tested
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Recommended condoms Latex or polyurethane male = Avanti female = Reality Allergy lambskin/ sheepskin latex condom
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Condoms not recommended Lambskin or sheepskin --- allow HIV to pass through
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HIV reinfection Virus mutates quickly – becomes personalized Add more HIV to body— adds to viral load
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Outercourse No exchange of fluids No penetration
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Treatments for AIDS patients AZT DDC DVT Norvair 10 Protease inhibitors expensive --- $10-$18+ thousand/year
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Cocktail = Combination therapy Keeps viral load low Toxic --- destroys major organs: pancreas, liver, gums, heart Schedule driven: sometimes eat/sometimes not
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