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Session 115  Poster Abstracts
Transmitted Drug Resistance: Epidemiology and Pathogenesis
Monday, 1 - 4 pm
Poster Hall
      648

Antiretroviral Drug-resistance Mutations and Subtypes in Drug-naïve Persons Newly Diagnosed with HIV-1 Infection, US, March 2003 to October 2006
W Wheeler1, K Mahle1, Ulana Bodnar*2, R Kline2, I Hall2, M McKenna2, and the US Variant, Atypical and Resistant HIV Surveillance (VARHS) Group
1Northrop Grumman Corp, Atlanta, GA, US and 2CDC, Atlanta, GA, US
      649

HIV Drug Resistance Transmission Threshold Survey in High- and Low-risk Populations in Bangkok
Sunee Sirivichayakul*1, P Phanuphak2, T Pankam2, R O-Charoen3, D Sutherland4, and K Ruxrungtham1
1Chulalongkorn Univ, Bangkok, Thailand; 2Thai Red Cross AIDS Res Ctr, Bangkok; 3Thai Red Cross Natl Blood Ctr, Bangkok; and 4WHO, Geneva, Switzerland
      650 ART Resistance, HIV-1 Tropism, and HIV-1 Subtype among Men Who Have Sex with Men Recently Infected with HIV-1 in the US: The EXPLORE Study
Susan H. Eshleman*1, M Husnik2, S Hudelson1, D Donnell2, Y Huang3, W Huang4, J Jackson1, T Coates5, M Chesney6, and B Koblin7
1Johns Hopkins Univ Sch of Med, Baltimore, MD, US; 2Fred Hutchinson Cancer Res Ctr, Seattle, WA, US; 3Emory Univ, Atlanta, GA, US; 4Monogram Biosci, South San Francisco, CA, US; 5Univ of California, Los Angeles, US; 6NIH, Bethesda, MD, US; and 7New York Blood Ctr, New York, NY, US
      651 Recent Trends in Transmitted Drug Resistance in a New York City Cohort
Andrea Low*1,2, Andrea Low*1,2, H Mohri1, M Markowitz1,2, and M Markowitz1,2
1Aaron Diamond AIDS Res Ctr, The Rockefeller Univ, New York, NY, US and 2The Rockefeller Univ, New York, NY, US
      652 Surveillance for Transmitted Drug-resistance in Sentinel-sites: San Francisco, 2005-2006
Nicola Zetola*1, K Ahrens2, C Kent2, H H Truong3, R Grant3, J Dilley4, and J Klausner2
1Univ of California, San Francisco, US; 2San Francisco Dept of Publ Hlth, CA, US; 3Univ of California, San Francisco Gladstone Inst of Virology and Immunology, US; and 4AIDS Hlth Project, San Francisco, CA, US
      653 HIV Genotypic Resistance in Seroconverters in the gp120 Vaccine Efficacy Trial
Michael Para*1, J Fuchs2, C Celum3, R Novak4, M Gurwith5, K Mayer6, A Youngpairoj7, M Kalish7, W Heneine7, and M Ackers7
1Ohio State Univ, Columbus, US; 2San Francisco Dept of Publ Hlth, CA, US; 3Univ of Washington, Seattle, US; 4Univ of Illinois at Chicago, US; 5VaxGen, Inc, Brisbane, CA, US; 6Fenway Community Hlth Ctr, Boston, MA, US; and 7CDC, Atlanta, GA, US
      654

Age Discordance and Drug Resistance Predict Clustering of HIV among Recently Infected MSM in San Diego, California
Lydia Drumright*1, S Little1, D Richman1,2, D Richman1,2, and S Frost1
1Univ of California, San Diego, US and 2VA San Diego Hlthcare System, CA, US
      655

Surveillance of Transmitted HIV Drug Resistance among Women Attending Antenatal Clinics in Dar es Salaam, Tanzania
G Somi1, T Kibuka2, K Diallo3, T Tuhuma1, Sidibe Kassim*3, D Bennett4, C Yang3, C Kagoma5, E Lyamuya6, and R Swai1
1Natl AIDS Control Prgm, Dar es Salaam, Tanzania; 2CDC Tanzania, Dar es Salaam; 3CDC, Atlanta, GA, US; 4WHO, Geneva, Switzerland; 5WHO, Dar es Salaam, Tanzania; and 6Muhimbili Univ Coll of Hlth Sci, Dar es Salaam, Tanzania
      656 Transmission of HIV Strains with Resistance to PI and to Multiple Drug Classes Is Growing in Spain
Carmen de Mendoza*1, C Rodriguez2, F Gutierrez3, E Caballero4, J Colomina5, A Aguilera6, J Aguero7, C Tuset8, J Torre-Cisneros9, V Soriano1, and on behalf of the Spanish HIV Seroconverter Study Group.
1Hosp Carlos III, Madrid, Spain; 2Ctr Sanitario Sandoval, Madrid, Spain; 3Hosp Gen, Elche, Spain; 4Hosp Vall d'Hebron, Barcelona, Spain; 5Hosp de la Ribera, Valencia, Spain; 6Hosp Xeral, Santiago, Spain; 7Hosp Marques de Valdecilla, Santander, Spain; 8Hosp Gen, Valencia, Spain; and 9Hosp Reina Sofia, Cordoba, Spain
      657

Acquisition of Transmitted Drug-resistant HIV-1 Infection Is Associated with the Presence of Sexually Transmitted Infections
Kate Nambiar*1, M Fisher1, D Pao1, D Sudarshi1, I Reeves1, G Dean1, G Murphy2, J Parry2, and D Pillay3
1Brighton and Sussex Univ Hosp, Brighton, UK; 2Hlth Protection Agency, Colindale, London, UK; and 3Univ Coll and Royal Free Hosp Med Sch, London, UK