PCB 4232 Lecture Notes - Lecture 3: Drug Injection, Blood Transfusion, Serostatus
18 Dec 2016
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Central europe + usa = m2m sex and (drugs) Latin america + sub saharan africa = heterosexual sex. India = second to south africa in number of new cases. Who and unaids want education/blood screening/ and iv drug user treatments. Most common sti chlamydia and ghonorrea (cg) Condoms prevent spread of hiv ( microlesions in vagina increase exchange of blood) Spermicidal agents like nonoxyl-9 may increase chance of getting hiv. They are experimenting with microbiocides for vaginal and rectum use. Hiv can be detected by testing for specific antibodies. Checking to see if you"ve been exposed to an infectious agent by checking if you have antibodies for them. Elisa test tests for specific antibodies (anti-hiv antibodies) Positive elisa test -> change to yellow orange color (hiv antibodies are in serum. False positive -> positive test when person is actually hiv .
