Dr. Farquhar received her MD at Harvard Medical School, and completed a residency and chief residency in internal medicine and a fellowship in infectious disease at the University of Washington, where she also earned a Masters in Public Health. She currently spends approximately 2 months each year in Nairobi and Kisumu mentoring US and Kenyan trainees and conducting research on HIV-discordant couples, HIV partner services, correlates of immunity against HIV-1, and mother-to-child HIV-1 transmission. Ongoing studies explore provision of partner notification and HIV testing services in a cluster randomized trial of 18 voluntary counseling and testing sites in Kenya, and examine home-based education and HIV testing for male partners of pregnant women. The latter is a randomized clinical trial assessing maternal and child health outcomes that is taking place in Kisumu, Kenya.
She has published more than 95 peer-reviewed papers and is the Director of two international training programs (listed above) as well as the UW Internal Medicine Global Health Pathway. Dr. Farquhar teaches 3 courses in the School of Public Health, AIDS: A Multidisciplinary Approach, the Responsible Conduct of International Research, and the Integrated Residency Global Health Leadership course. In addition, she sees HIV-infected patients one half-day per week at Madison Clinic and attends in the Infectious Disease clinic and on the wards at Harborview Medical Center.
Farquhar, C., VanCott, T.C., Mbori-Ngacha, D.A., Horani, L., Bosire, R.K., Kreiss, J.K., Richardson, B.A., & John-Stewart, G.C. (2002). Salivary secretory leukocyte protease inhibitor is associated with reduced transmission of human immunodeficiency virus type 1 through breast milk. J Infect Dis, 186, 1173-6.
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Farquhar, C., Kiarie, J.N., Richardson, B.A., Kabura, M.N., John, F.N., Nduati, R.W., Mbori-Ngacha, D.A., & John-Stewart, G.C. (2004). Antenatal couple counseling increases uptake of interventions to prevent HIV-1 transmission. J Acquir Immune Defic Syndr, 37, 1620-6.
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Farquhar, C., Nduati, R., Haigwood, N.L., Sutton, W., Mbori-Ngacha, D., Richardson, B., & John-Stewart, G. (2005). High maternal HIV-1 viral load during pregnancy adversely affects placental transfer and infant concentrations of measles IgG antibody. J Acquir Immune Defic Syndr, 40(4), 494-7.
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Drake, A., John-Stewart, G., Wald, A., Mbori-Ngacha, D., Bosire, R., Wamalwa, D., Lohman-Payne, B., Ashley-Morrow, R., Corey, L., & Farquhar, C. (2007). Herpes simplex virus type 2 and risk of intrapartum human immunodeficiency virus transmission. Obstet Gynecol, 109, 403-9.
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Mackelprang, R., John-Stewart, G.C., Carrington, M., Richardson, B., Mbori-Ngacha, D., Mabuka, J., Rowland-Jones, S., Wamalwa, D., Lohman-Payne, B., & Farquhar, C. (2008). Maternal HLA homozygosity and mother-child HLA concordance increase the risk of vertical transmission of HIV-1. J Infect Dis, 197(8), 1156-61.
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Aluisio, A., Richardson, B.A., Bosire, R., John-Stewart, G., Mbori-Ngacha, E., & Farquhar, C. (2011). Male antenatal attendance and HIV testing are associated with decreased infant HIV infection and increased HIV-free survival. J Acquir Immune Defic Syndr, 56(1), 76-82. PMCID: PMC3005193.
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Farquhar, C., Wamalwa, D., Selig, S., John-Stewart, G., Mabuka, J., Sutton, W., Haigwood, N., Wariua, G., & Lohman-Payne, B. (2009). Immune responses to measles and tetanus vaccines among Kenyan HIV-1-infected children pre and post-highly active antiretroviral therapy and re-vaccination. Ped Infect Dis J, 28(4), 295-299.
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Farquhar, C., Nathanson, C., Consortium Working Group: The Afya Bora Consortium: An Africa-US partnership to train leaders in Global health. (2011). Infect Dis Clin North Am, 25(2), 399-409. PMCID: PMC3143113.
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Farquhar, C., Lohman-Payne, B., Overbaugh, J., Richardson, B.A., Mabuka, J., Bosire, R., Mbori-Ngacha, D., & John-Stewart, G. (2011). Breast Milk HIV-1 RNA levels and female sex associated with HIV-1-specific CD8+ T-Cell responses in HIV-1-exposed uninfected infants in Kenya. J Infect Dis, 204(11):1806-10.
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Drake, A.L., Roxby, A.C., Ongecha-Owuor, F., Kiarie, J., John-Stewart, G., Wald, A., Richardson, B.A., Hitti, J., Overbaugh, J., Emery, S., & Farquhar, C. (2012). Valacyclovir suppressive therapy reduces plasma and breast milk HIV-1 RNA levels during pregnancy and postpartum: a randomized trial. J Infect Dis, 205(3), 366-75.
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