Epidemiology-HIV AIDS

• ~1.2 million Americans living w/ HIV (13% unaware); ~37 million worldwide
• High risk groups: MSM, transgender women, IVDU, sex worker, partners of high-risk Pts
• Transmission: sexual (risk 0.1–1% per sex act w/o ARV), needlesticks (occupational or IVDU), vertical (15–40% w/o ARV), transfusions, organ transplant (uncommon in U.S.)