Catherine Koss, MD
Assistant Professor
Medicine
School of Medicine

She also has an interest in adherence to treatment and virologic outcomes among pregnant and postpartum women living with HIV. She is an attending physician on the HIV and Infectious Diseases consult service at San Francisco General Hospital and a clinical provider at the Ward 86 clinic.

• Uptake of a patient-centred dynamic choice model for HIV prevention in rural Kenya and Uganda: SEARCH SAPPHIRE study.
  Journal of the International AIDS Society 2023 Kabami J, Kakande E, Chamie G, Balzer LB, Petersen ML, Camlin CS, Nyabuti M, Koss CA, Bukusi EA, Kamya MR, Havlir DV, Ayieko J
• The Association Between Social Network Characteristics and Tuberculosis Infection Among Adults in 9 Rural Ugandan Communities.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2023 Marquez C, Chen Y, Atukunda M, Chamie G, Balzer LB, Kironde J, Ssemmondo E, Mwangwa F, Kabami J, Owaraganise A, Kakande E, Abbott R, Ssekyanzi B, Koss C, Kamya MR, Charlebois ED, Havlir DV, Petersen …
• Providers' Attitudes and Experiences with Pre-Exposure Prophylaxis Implementation in a Population-Based Study in Kenya and Uganda.
  AIDS patient care and STDs 2022 Camlin CS, Getahun M, Koss CA, Owino L, Akatukwasa C, Itiakorit H, Onyango A, Bakanoma R, Atwine F, Maeri I, Ayieko J, Atukunda M, Owaraganise A, Mwangwa F, Sang N, Kabami J, Kaplan RL, Chamie G, …
• Long-Acting Injectable Cabotegravir for HIV Prevention: What Do We Know and Need to Know about the Risks and Consequences of Cabotegravir Resistance?
  Current HIV/AIDS reports 2022 Parikh UM, Koss CA, Mellors JW
• Cost-effectiveness of easy-access, risk-informed oral pre-exposure prophylaxis in HIV epidemics in sub-Saharan Africa: a modelling study.
  The lancet. HIV 2022 Phillips AN, Bershteyn A, Revill P, Bansi-Matharu L, Kripke K, Boily MC, Martin-Hughes R, Johnson LF, Mukandavire Z, Jamieson L, Meyer-Rath G, Hallett TB, Ten Brink D, Kelly SL, Nichols BE, Bendavid E…
• Uptake and outcomes of a novel community-based HIV post-exposure prophylaxis (PEP) programme in rural Kenya and Uganda.
  Journal of the International AIDS Society 2021 Ayieko J, Petersen ML, Kabami J, Mwangwa F, Opel F, Nyabuti M, Charlebois ED, Peng J, Koss CA, Balzer LB, Chamie G, Bukusi EA, Kamya MR, Havlir DV
• Tenofovir and emtricitabine concentrations in hair are comparable between individuals on tenofovir disoproxil fumarate versus tenofovir alafenamide-based ART.
  Drug testing and analysis 2021 Okochi H, Louie A, Phung N, Zhang K, Tallerico RM, Kuncze K, Spinelli MA, Koss CA, Benet LZ, Gandhi M
• Provider and Patient Perspectives of Rapid ART Initiation and Streamlined HIV Care: Qualitative Insights From Eastern African Communities.
  Journal of the International Association of Providers of AIDS Care 2021 Mwangwa F, Getahun M, Itiakorit H, Jain V, Ayieko J, Owino L, Akatukwasa C, Maeri I, Koss CA, Chamie G, Clark TD, Kabami J, Atukunda M, Kwarisiima D, Sang N, Bukusi EA, Kamya MR, Petersen ML, Cohen CR…
• Machine Learning to Identify Persons at High-Risk of Human Immunodeficiency Virus Acquisition in Rural Kenya and Uganda.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2020 Balzer LB, Havlir DV, Kamya MR, Chamie G, Charlebois ED, Clark TD, Koss CA, Kwarisiima D, Ayieko J, Sang N, Kabami J, Atukunda M, Jain V, Camlin CS, Cohen CR, Bukusi EA, Van Der Laan M, Petersen ML
• Population-level viral suppression among pregnant and postpartum women in a universal test and treat trial.
  AIDS (London, England) 2020 Kabami J, Balzer LB, Saddiki H, Ayieko J, Kwarisiima D, Atukunda M, Charlebois ED, Clark TD, Koss CA, Ruel T, Bukusi EA, Cohen CR, Musoke P, Petersen ML, Havlir DV, Kamya MR, Chamie G
• Understanding Demand for PrEP and Early Experiences of PrEP Use Among Young Adults in Rural Kenya and Uganda: A Qualitative Study.
  AIDS and behavior 2020 Camlin CS, Koss CA, Getahun M, Owino L, Itiakorit H, Akatukwasa C, Maeri I, Bakanoma R, Onyango A, Atwine F, Ayieko J, Kabami J, Mwangwa F, Atukunda M, Owaraganise A, Kwarisiima D, Sang N, Bukusi EA, …
• Response to: Is Burnout Infectious? Understanding Drivers of Burnout and Job Satisfaction Among Academic Infectious Diseases Physicians.
  Open forum infectious diseases 2020 Budak JZ, Brickman CE, Abdoler EA, Wallender EK, Mulliken JS, Kerkhoff AD, Lampiris H, Babik JM, Koss CA, Schwartz BS
• Comparison of guidelines for HIV viral load monitoring among pregnant and breastfeeding women in sub-Saharan Africa.
  AIDS (London, England) 2020 Lesosky M, Raboud JM, Glass T, Brummel SS, Ciaranello AL, Currier JS, Essajee S, Havlir DV, Koss CA, Ogwu A, Shapiro RL, Abrams EJ, Myer L
• Pre-exposure Prophylaxis (PrEP) Uptake Among Older Individuals in Rural Western Kenya.
  Journal of acquired immune deficiency syndromes (1999) 2019 Olilo WA, Petersen ML, Koss CA, Wafula E, Kwarisiima D, Kadede K, Clark TD, Cohen CR, Bukusi EA, Kamya MR, Charlebois ED, Havlir DV, Ayieko J, SEARCH Collaboration
• 2534. Development of an Infectious Diseases Fellowship Well-Being Program.
  Open Forum Infectious Diseases 2019 Jehan Budak, Cristina Brickman, Emily Abdoler, Erika Wallender, Jennifer S Mulliken, Andrew D Kerkhoff, Harry Lampiris, Jennifer M Babik, Catherine Koss, Brian Schwartz, Brian Schwartz
• Housing First: Unsuppressed Viral Load Among Women Living with HIV in San Francisco.
  AIDS and behavior 2019 Riley ED, Vittinghoff E, Koss CA, Christopoulos KA, Clemenzi-Allen A, Dilworth SE, Carrico AW
• HIV Testing and Treatment with the Use of a Community Health Approach in Rural Africa.
  The New England journal of medicine 2019 Havlir DV, Balzer LB, Charlebois ED, Clark TD, Kwarisiima D, Ayieko J, Kabami J, Sang N, Liegler T, Chamie G, Camlin CS, Jain V, Kadede K, Atukunda M, Ruel T, Shade SB, Ssemmondo E, Byonanebye DM, …
• A Prognostic Model of Persistent Bacteremia and Mortality in Complicated Staphylococcus aureus Bloodstream Infection.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2019 Guimaraes AO, Cao Y, Hong K, Mayba O, Peck MC, Gutierrez J, Ruffin F, Carrasco-Triguero M, Dinoso JB, Clemenzi-Allen A, Koss CA, Maskarinec SA, Chambers HF, Fowler VG, Baruch A, Rosenberger CM
• Distance to clinic is a barrier to PrEP uptake and visit attendance in a community in rural Uganda.
  Journal of the International AIDS Society 2019 Mayer CM, Owaraganise A, Kabami J, Kwarisiima D, Koss CA, Charlebois ED, Kamya MR, Petersen ML, Havlir DV, Jewell BL
• Sustained Circulating Bacterial Deoxyribonucleic Acid Is Associated With Complicated Staphylococcus aureus Bacteremia.
  Open forum infectious diseases 2019 Gutierrez J, Guimaraes AO, Lewin-Koh N, Berhanu A, Xu M, Cao Y, Kim J, Yan D, Chang JK, Dinoso JB, Koss CA, Clemenzi-Allen A, Chambers HF, Peck MC, Baruch A, Rosenberger CM
• Early Adopters of Human Immunodeficiency Virus Preexposure Prophylaxis in a Population-based Combination Prevention Study in Rural Kenya and Uganda.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2018 Koss CA, Ayieko J, Mwangwa F, Owaraganise A, Kwarisiima D, Balzer LB, Plenty A, Sang N, Kabami J, Ruel TD, Black D, Camlin CS, Cohen CR, Bukusi EA, Clark TD, Charlebois ED, Petersen ML, Kamya MR, …
• Similar tenofovir hair concentrations in men and women after directly observed dosing of tenofovir disoproxil fumarate/emtricitabine: implications for preexposure prophylaxis adherence monitoring.
  AIDS (London, England) 2018 Koss CA, Liu AY, Castillo-Mancilla J, Bacchetti P, McHugh C, Kuncze K, Morrow M, Louie A, Seifert S, Okochi H, MaWhinney S, Gandhi M, Anderson PL
• Development and Validation of an Immunoassay for Tenofovir in Urine as a Real-Time Metric of Antiretroviral Adherence.
  EClinicalMedicine 2018 Gandhi M, Bacchetti P, Rodrigues WC, Spinelli M, Koss CA, Drain PK, Baeten JM, Mugo NR, Ngure K, Benet LZ, Okochi H, Wang G, Vincent M
• Circulating bacterial DNA is associated with disease severity in patients with S. aureus bacteremia.
  The Journal of Immunology 2018 Johnny Gutierrez, Alessander Guimaraes, Melicent C. Peck, Aklile Barhanu, Min Xu, Yi Cao, Janice Kim, Donghong Yan, Joanna K. Chang, Jason Dinoso, Catherine Koss, Angelo Clemenzi-Allen, Henry F. …
• Estradiol Levels Are Altered in Human Immunodeficiency Virus-Infected Pregnant Women Randomized to Efavirenz-Versus Lopinavir/Ritonavir-Based Antiretroviral Therapy.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2018 McDonald CR, Conroy AL, Gamble JL, Papp E, Hawkes M, Olwoch P, Natureeba P, Kamya M, Silverman M, Cohan D, Koss CA, Dorsey G, Kain KC, Serghides L
• Protective Effect of Indoor Residual Spraying of Insecticide on Preterm Birth Among Pregnant Women With HIV Infection in Uganda: A Secondary Data Analysis.
  The Journal of infectious diseases 2017 Roh ME, Shiboski S, Natureeba P, Kakuru A, Muhindo M, Ochieng T, Plenty A, Koss CA, Clark TD, Awori P, Nakalambe M, Cohan D, Jagannathan P, Gosling R, Havlir DV, Kamya MR, Dorsey G
• Brief Report: Lopinavir Hair Concentrations Are the Strongest Predictor of Viremia in HIV-Infected Asian Children and Adolescents on Second-Line Antiretroviral Therapy.
  Journal of acquired immune deficiency syndromes (1999) 2017 Pintye J, Bacchetti P, Teeraananchai S, Kerr S, Prasitsuebsai W, Singtoroj T, Kuncze K, Louie A, Koss CA, Jin C, Phung N, Horng H, Sohn AH, Gandhi M
• Strong Correlation Between Concentrations of Antiretrovirals in Home-Collected and Study-Collected Hair Samples: Implications for Adherence Monitoring.
  Journal of acquired immune deficiency syndromes (1999) 2017 Saberi P, Neilands TB, Ming K, Johnson MO, Kuncze K, Koss CA, Gandhi M
• Hair levels of preexposure prophylaxis drugs measure adherence and are associated with renal decline among men/transwomen.
  AIDS (London, England) 2017 Gandhi M, Murnane PM, Bacchetti P, Elion R, Kolber MA, Cohen SE, Horng H, Louie A, Kuncze K, Koss CA, Anderson PL, Buchbinder S, Liu A
• Intermittent Preventive Treatment With Dihydroartemisinin-Piperaquine for the Prevention of Malaria Among HIV-Infected Pregnant Women.
  The Journal of infectious diseases 2017 Natureeba P, Kakuru A, Muhindo M, Ochieng T, Ategeka J, Koss CA, Plenty A, Charlebois ED, Clark TD, Nzarubara B, Nakalembe M, Cohan D, Rizzuto G, Muehlenbachs A, Ruel T, Jagannathan P, Havlir DV, …
• Antiretroviral Therapy With Efavirenz Accentuates Pregnancy-Associated Reduction of Dihydroartemisinin-Piperaquine Exposure During Malaria Chemoprevention.
  Clinical pharmacology and therapeutics 2017 Kajubi R, Huang L, Jagannathan P, Chamankhah N, Were M, Ruel T, Koss CA, Kakuru A, Mwebaza N, Kamya M, Havlir D, Dorsey G, Rosenthal PJ, Aweeka FT
• Differences in Cumulative Exposure and Adherence to Tenofovir in the VOICE, iPrEx OLE, and PrEP Demo Studies as Determined via Hair Concentrations.
  AIDS research and human retroviruses 2017 Koss CA, Bacchetti P, Hillier SL, Livant E, Horng H, Mgodi N, Mirembe BG, Gomez Feliciano K, Horn S, Liu AY, Glidden DV, Grant RM, Benet LZ, Louie A, van der Straten A, Chirenje ZM, Marrazzo JM, …
• Viral Suppression and Retention in Care up to 5 Years After Initiation of Lifelong ART During Pregnancy (Option B+) in Rural Uganda.
  Journal of acquired immune deficiency syndromes (1999) 2017 Koss CA, Natureeba P, Kwarisiima D, Ogena M, Clark TD, Olwoch P, Cohan D, Okiring J, Charlebois ED, Kamya MR, Havlir DV
• A multi-analyte panel for non-invasive pharmacokinetic monitoring of second-line anti-tuberculosis drugs.
  The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease 2016 Gerona R, Wen A, Koss C, Bacchetti P, Gandhi M, Metcalfe J
• Quantifying Isoniazid Levels in Small Hair Samples: A Novel Method for Assessing Adherence during the Treatment of Latent and Active Tuberculosis.
  PloS one 2016 Gerona R, Wen A, Chin AT, Koss CA, Bacchetti P, Metcalfe J, Gandhi M
• Brief Report: Food Insufficiency Is Associated With Lack of Sustained Viral Suppression Among HIV-Infected Pregnant and Breastfeeding Ugandan Women.
  Journal of acquired immune deficiency syndromes (1999) 2016 Koss CA, Natureeba P, Nyafwono D, Plenty A, Mwesigwa J, Nzarubara B, Clark TD, Ruel TD, Achan J, Charlebois ED, Cohan D, Kamya MR, Havlir DV, Young SL
• A Clinical Predictor Score for 30-Day Mortality among HIV-Infected Adults Hospitalized with Pneumonia in Uganda.
  PloS one 2015 Koss CA, Jarlsberg LG, den Boon S, Cattamanchi A, Davis JL, Worodria W, Ayakaka I, Sanyu I, Huang L, International HIV-associated Opportunistic Pneumonias (IHOP) Study
• Hair concentrations of antiretrovirals predict viral suppression in HIV-infected pregnant and breastfeeding Ugandan women.
  AIDS (London, England) 2015 Koss CA, Natureeba P, Mwesigwa J, Cohan D, Nzarubara B, Bacchetti P, Horng H, Clark TD, Plenty A, Ruel TD, Achan J, Charlebois ED, Kamya MR, Havlir DV, Gandhi M
• Efficacy and safety of lopinavir/ritonavir versus efavirenz-based antiretroviral therapy in HIV-infected pregnant Ugandan women.
  AIDS (London, England) 2015 Cohan D, Natureeba P, Koss CA, Plenty A, Luwedde F, Mwesigwa J, Ades V, Charlebois ED, Gandhi M, Clark TD, Nzarubara B, Achan J, Ruel T, Kamya MR, Havlir DV
• Risk factors for preterm birth among HIV-infected pregnant Ugandan women randomized to lopinavir/ritonavir- or efavirenz-based antiretroviral therapy.
  Journal of acquired immune deficiency syndromes (1999) 2014 Koss CA, Natureeba P, Plenty A, Luwedde F, Mwesigwa J, Ades V, Charlebois ED, Clark TD, Achan J, Ruel T, Nzarubara B, Kamya MR, Havlir DV, Cohan D
• Investigation of metronidazole use during pregnancy and adverse birth outcomes.
  Antimicrobial agents and chemotherapy 2012 Koss CA, Baras DC, Lane SD, Aubry R, Marcus M, Markowitz LE, Koumans EH
• A systematic review of epidemiologic studies assessing condom use and risk of syphilis.
  Sexually transmitted diseases 2009 Koss CA, Dunne EF, Warner L
• Generic entry, reformulations and promotion of SSRIs in the US.
  PharmacoEconomics 2008 Huskamp HA, Donohue JM, Koss C, Berndt ER, Frank RG