MMWR:HIV Transmission Through Transfusion — Missouri and Colorado, 2008

Transmission of human immunodeficiency virus (HIV) through transfusion of contaminated blood components was documented in the United States in 1982. Since then, the risk for transfusion-transmitted HIV infection has been almost eliminated by the use of questionnaires to exclude donors at higher risk for HIV infection and the use of highly sensitive laboratory screening tests to identify infected blood donations. The risk for acquiring HIV infection through blood transfusion today is estimated conservatively to be one in 1.5 million, based on 2007—2008 data.

Source: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5941a3.htm?s_cid=mm5941a3_e

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