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HIV transmission rates from persons living with HIV who are aware and unaware of their infection

Hall, H. Irenea; Holtgrave, David R.b; Maulsby, Catherineb

doi: 10.1097/QAD.0b013e328351f73f
Research Letters

Transmission rate modeling estimated secondary infections from those aware and unaware of their HIV infection. An estimated 49% of transmissions were from the 20% of persons living with HIV unaware of their infection. About eight transmissions would be averted per 100 persons newly aware of their infection; with more infections averted the higher the percentage of persons with viral suppression who can be linked to care. Improving all stages of HIV care would substantially reduce transmission rates.

aDivision of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia

bDepartment of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

Correspondence to H.I. Hall, PhD, MS E-47, Centers for Disease Control and Prevention, 1600 Clifton Road NE, Atlanta, GA 30333, USA. Tel: +1 404 639 2050; fax: +1 404 639 2980; e-mail:

Received 9 November, 2011

Revised 9 January, 2012

Accepted 30 January, 2012

© 2012 Lippincott Williams & Wilkins, Inc.