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Timothy Kellogg

TitleSenior Epi/Biostat Officer
InstitutionUniversity of California San Francisco
DepartmentPrevention & Public Health
Address550 16th. Street
San Francisco CA 94158
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    Collapse Biography 
    Collapse Education and Training
    San Francisco State University, San Francisco, CABA05/2004History
    San Francisco State University, San Francisco, CAMA05/1985Ecology and Systematic Biology
    San Francisco State University, San Francisco, CABA05/1982Biology
    University of Michigan, Ann Arbor1991/92Epidemiology and Biostatistics

    Collapse Overview 
    Collapse Overview
    Tim is a epidemiologist/technical advisor with broad experience in domestic and International HIV/AIDS surveillance projects. Between 2010 to 2016, he was technical advisor in Nairobi Kenya assisting the Ministry of Health with a variety of surveillance projects, including the Kenya AIDS Indicator Survey (KAIS), an evaluation of Kenya's readiness to transition from ANC sentinel surveys to the use of routine PMTCT program data for surveillance purposes, and a pilot of a case-based surveillance (CBS) system in Western Kenya. Currently, he is based in Windhoek Namibia assisting the Global Programs Namibia Office with the implementation of the NAMPHIA survey.

    Besides HIV surveillance, Tim specializes in data analysis, results dissemination through reports and publications, and capacity building of in-country institutions, organizations, and individuals. He has mentoring many Kenyan epidemiologists, including residents of the Field Epidemiology Laboratory Training Program (FELTP), in HIV surveillance methods and developing manuscripts for publication.


    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Truong HM, Fatch R, Grant RM, Mathur M, Kumta S, Jerajani H, Kellogg T, Lindan CP. Characterization of HIV Recent Infection Among High-Risk Men at Public STI Clinics in Mumbai. AIDS Behav. 2018 Feb 16. PMID: 29453551.
      View in: PubMed
    2. Ng'eno BN, Kellogg T, Kim AA, Mwangi A, Mwangi M, Wamicwe J, Rutherford GW. Modes of HIV transmission among adolescents and young adults aged 10-24 years in Kenya. Int J STD AIDS. 2018 Jan 01; 956462418758115. PMID: 29490572.
      View in: PubMed
    3. Young PW, Kim AA, Wamicwe J, Nyagah L, Kiama C, Stover J, Oduor J, Rogena EA, Walong E, Zielinski-Gutierrez E, Imbwaga A, Sirengo M, Kellogg T, De Cock KM. HIV-associated mortality in the era of antiretroviral therapy scale-up - Nairobi, Kenya, 2015. PLoS One. 2017; 12(8):e0181837. PMID: 28767714.
      View in: PubMed
    4. Cherutich P, Kim AA, Kellogg T, Sherr K, Waruru A, De Cock KM, Rutherford GW. Detectable HIV Viral Load in Kenya: Data from a Population-Based Survey. PLoS One. 2016; 11(5):e0154318. PMID: 27192052; PMCID: PMC4871583.
    5. Sirengo M, Rutherford GW, Otieno-Nyunya B, Kellogg T, Kimanga D, Muraguri N, Umuro M, Mirjahangir J, Stein E, Ndisha M, Kim AA. Evaluation of Kenya's readiness to transition from sentinel surveillance to routine HIV testing for antenatal clinic-based HIV surveillance. BMC Infect Dis. 2016 Mar 05; 16:113. PMID: 26945861; PMCID: PMC4779556.
    6. Grasso MA, Schwarcz S, Galbraith JS, Musyoki H, Kambona C, Kellogg T. Estimating the Prevalence and Predictors of Incorrect Condom Use Among Sexually Active Adults in Kenya: Results From a Nationally Representative Survey. Sex Transm Dis. 2016 Feb; 43(2):87-93. PMID: 26766524; PMCID: PMC4930356.
    7. Mwangi MW, Kellogg T, Brookmeyer K, Buluma R, Chiang L, Otieno-Nyunya B, Chesang K. Perpetrators and context of child sexual abuse in Kenya. Child Abuse Negl. 2015 Jun; 44:46-55. PMID: 25882669; PMCID: PMC4826906.
    8. Musyoki H, Kellogg T, Geibel S, Muraguri N, Okal J, Tun W, Fisher Raymond H, Dadabhai S, Sheehy M, Kim AA. Prevalence of HIV, sexually transmitted infections, and risk behaviours among female sex workers in Nairobi, Kenya: results of a respondent driven sampling study. AIDS Behav. 2015 Feb; 19 Suppl 1:S46-58. PMID: 25428282; PMCID: PMC4786175.
    9. Muraguri N, Tun W, Okal J, Broz D, Raymond HF, Kellogg T, Dadabhai S, Musyoki H, Sheehy M, Kuria D, Kaiser R, Geibel S. HIV and STI prevalence and risk factors among male sex workers and other men who have sex with men in Nairobi, Kenya. J Acquir Immune Defic Syndr. 2015 Jan 01; 68(1):91-6. PMID: 25501346; PMCID: PMC4973514.
    10. Mbithi A, Gichangi A, Kim AA, Katana A, Weyenga H, Williamson J, Robinson K, Oluoch T, Maina WK, Kellogg T, De Cock KM. Tuberculosis and HIV at the national level in Kenya: results from the Second Kenya AIDS Indicator Survey. J Acquir Immune Defic Syndr. 2014 May 01; 66 Suppl 1:S106-15. PMID: 24732814; PMCID: PMC4786174.
    11. Sirengo M, Muthoni L, Kellogg T, Kim AA, Katana A, Mwanyumba S, Kimanga DO, Maina WK, Muraguri N, Elly B, Rutherford GW. Mother-to-child transmission of HIV in Kenya: results from a nationally representative study. J Acquir Immune Defic Syndr. 2014 May 01; 66 Suppl 1:S66-74. PMID: 24732822; PMCID: PMC4790087.
    12. Odhiambo JO, Kellogg T, Kim AA, Ng'ang'a L, Mukui I, Umuro M, Mohammed I, De Cock KM, Kimanga DO, Schwarcz S. Antiretroviral treatment scale-up among persons living with HIV in Kenya: results from a nationally representative survey. J Acquir Immune Defic Syndr. 2014 May 01; 66 Suppl 1:S116-22. PMID: 24732815; PMCID: PMC4786176.
    13. Mwangi M, Kellogg T, Dadabhai SS, Bunnell R, Baltazar G, Ngare C, K'opiyo G, Mburu M, Kim AA. Factors Associated with Uptake of HIV Test Results in a Nationally Representative Population-Based AIDS Indicator Survey. Open AIDS J. 2014; 8:7-16. PMID: 24707325; PMCID: PMC3975632.
    14. Kellogg T, Hecht J, Bernstein K, McFarland W, Connors A, Perloff L, Raymond HF. Comparison of HIV behavioral indicators among men who have sex with men across two survey methodologies, San Francisco, 2004 and 2008. Sex Transm Dis. 2013 Sep; 40(9):689-94. PMID: 23945424.
      View in: PubMed
    15. Truong HM, Grasso M, Chen YH, Kellogg T, Robertson T, Curotto A, Steward WT, McFarland W. Balancing theory and practice in respondent-driven sampling: a case study of innovations developed to overcome recruitment challenges. PLoS One. 2013; 8(8):e70344. PMID: 23990901; PMCID: PMC3749182.
    16. Newmann SJ, Dufour MS, McFarland W, Oderman L, Kellogg T, Louie B, Drey EA. HIV voluntary counseling and testing at an abortion clinic: missed opportunities for diagnosis. Contraception. 2013 Jul; 88(1):147-52. PMID: 23312935.
      View in: PubMed
    17. Mwandi Z, Bunnell R, Cherutich P, Mermin J, Kim AA, Gichangi A, Mureithi P, Kellogg T, Oluoch T, Muttunga J, Ngare C, Kim E, Kaiser R. Male circumcision programmes in Kenya: lessons from the Kenya AIDS Indicator Survey 2007. Bull World Health Organ. 2012 Sep 01; 90(9):642-51. PMID: 22984308; PMCID: PMC3442396.
    18. Fritz K, McFarland W, Wyrod R, Chasakara C, Makumbe K, Chirowodza A, Mashoko C, Kellogg T, Woelk G. Evaluation of a peer network-based sexual risk reduction intervention for men in beer halls in Zimbabwe: results from a randomized controlled trial. AIDS Behav. 2011 Nov; 15(8):1732-44. PMID: 21380493; PMCID: PMC3190091.
    19. Truong HM, Kellogg T, McFarland W, Louie B, Klausner JD, Philip SS, Grant RM. Sentinel surveillance of HIV-1 transmitted drug resistance, acute infection and recent infection. PLoS One. 2011; 6(10):e25281. PMID: 22046237; PMCID: PMC3189011.
    20. Wyrod R, Fritz K, Woelk G, Jain S, Kellogg T, Chirowodza A, Makumbe K, McFarland W. Beyond sugar daddies: intergenerational sex and AIDS in urban Zimbabwe. AIDS Behav. 2011 Aug; 15(6):1275-82. PMID: 20811939.
      View in: PubMed
    21. Renault CA, Israelski DM, Levy V, Fujikawa BK, Kellogg T, Klausner JD. Time to clearance of Chlamydia trachomatis ribosomal RNA in women treated for chlamydial infection. Sex Health. 2011 Mar; 8(1):69-73. PMID: 21371385.
      View in: PubMed
    22. Truong HM, Kellogg T, Louie B, Klausner J, Dilley J, McFarland W. Recent HIV-1 infection detection: comparison of incidence estimates derived by laboratory assays and repeat testing data. J Acquir Immune Defic Syndr. 2009 Aug 01; 51(4):502-5. PMID: 19387356.
      View in: PubMed
    23. Levy V, Yuan J, Ruiz J, Morrow S, Reardon J, Facer M, Molitor F, Allen B, Ajufo BG, Bell-Sanford G, McFarland W, Raymond HF, Kellogg T, Page K. Hepatitis B sero-prevalence and risk behaviors among immigrant men in a population-based household survey in low-income neighborhoods of northern California. J Immigr Minor Health. 2010 Dec; 12(6):828-33. PMID: 19319680; PMCID: PMC2964463.
    24. Truong HM, Kellogg T, Schwarcz S, Delgado V, Grant RM, Louie B, Ngo H, McFarland W. Frequent international travel by men who have sex with men recently diagnosed with HIV-1: potential for transmission of primary HIV-1 drug resistance. J Travel Med. 2008 Nov-Dec; 15(6):454-6. PMID: 19090802.
      View in: PubMed
    25. Berry M, Raymond HF, Kellogg T, McFarland W. The Internet, HIV serosorting and transmission risk among men who have sex with men, San Francisco. AIDS. 2008 Mar 30; 22(6):787-9. PMID: 18356611.
      View in: PubMed
    26. Schwarcz S, Weinstock H, Louie B, Kellogg T, Douglas J, Lalota M, Dickinson G, Torian L, Wendell D, Paul S, Goza G, Ruiz J, Boyett B, McCormick L, Bennett D. Characteristics of persons with recently acquired HIV infection: application of the serologic testing algorithm for recent HIV seroconversion in 10 US cities. J Acquir Immune Defic Syndr. 2007 Jan 01; 44(1):112-5. PMID: 17075386.
      View in: PubMed
    27. Truong HM, Grant RM, McFarland W, Kellogg T, Kent C, Louie B, Wong E, Klausner JD. Routine surveillance for the detection of acute and recent HIV infections and transmission of antiretroviral resistance. AIDS. 2006 Nov 14; 20(17):2193-7. PMID: 17086059.
      View in: PubMed
    28. Rose VJ, Raymond HF, Kellogg T, McFarland W. Assessing the feasibility of harm reduction services for MSM: the late night breakfast buffet study. Harm Reduct J. 2006 Oct 03; 3:29. PMID: 17018154; PMCID: PMC1609109.
    29. Truong HM, Kellogg T, McFarland W, Kang MS, Darney P, Drey EA. Contraceptive intentions among adolescents after abortion. J Adolesc Health. 2006 Aug; 39(2):283-6. PMID: 16857542.
      View in: PubMed
    30. Buchacz K, McFarland W, Kellogg T, Loeb L, Holmberg SD, Dilley J, Klausner JD. Amphetamine use is associated with increased HIV incidence among men who have sex with men in San Francisco. AIDS. 2005 Sep 02; 19(13):1423-4. PMID: 16103774.
      View in: PubMed
    31. Drey EA, Darney PD, Louie B, Kellogg T, Kang MS, Prabhu R, Whitaker AK, Chin J, Molina A, McFarland W. HIV sentinel surveillance among women seeking elective pregnancy termination, San Francisco. Sex Transm Dis. 2005 Sep; 32(9):590-2. PMID: 16118609.
      View in: PubMed
    32. Kellogg T, Loeb L, Dilley J, Adler B, Louie BT, McFarland W. Comparison of three methods to measure HIV incidence among persons seeking voluntary, anonymous counseling and testing. J Acquir Immune Defic Syndr. 2005 May 01; 39(1):112-20. PMID: 15851921.
      View in: PubMed
    33. Kral AH, Page-Shafer K, Edlin BR, Kellogg T, Riley E, Gee L, Moss A, Busch M, Klausner JD, Dilley J, McFarland W. Persistent HIV incidence among injection drug users in San Francisco during the 1990s: results of five studies. J Acquir Immune Defic Syndr. 2004 Dec 15; 37(5):1667-9. PMID: 15577428.
      View in: PubMed
    34. Harawa NT, Douglas J, McFarland W, Thiede H, Kellogg T, Vorhees K, Donovan KM, Bingham TA. Trends in HIV prevalence among public sexually transmitted disease clinic attendees in the Western region of the United States (1989-1999). J Acquir Immune Defic Syndr. 2004 Sep 01; 37(1):1206-15. PMID: 15319682.
      View in: PubMed
    35. Hammer GP, Kellogg T, McFarland WC, Wong E, Louie B, Williams I, Dilley J, Page-Shafer K, Klausner JD. Low incidence and prevalence of hepatitis C virus infection among sexually active non-intravenous drug-using adults, San Francisco, 1997-2000. Sex Transm Dis. 2003 Dec; 30(12):919-24. PMID: 14646642.
      View in: PubMed
    36. Turner KR, McFarland W, Kellogg T, Wong E, Page-Shafer K, Louie B, Dilley J, Kent CK, Klausner J. Incidence and prevalence of herpes simplex virus type 2 infection in persons seeking repeat HIV counseling and testing. Sex Transm Dis. 2003 Apr; 30(4):331-4. PMID: 12671554.
      View in: PubMed
    37. Schwarcz SK, Kellogg T, McFarland W, Louie B, Klausner J, Withum DG, Katz MH. Characterization of sexually transmitted disease clinic patients with recent human immunodeficiency virus infection. J Infect Dis. 2002 Oct 01; 186(7):1019-22. PMID: 12232844.
      View in: PubMed
    38. Chen SY, Gibson S, Katz MH, Klausner JD, Dilley JW, Schwarcz SK, Kellogg T, McFarland W. Continuing increases in sexual risk behavior and sexually transmitted diseases among men who have sex with men: San Francisco, Calif, 1999-2001, USA. Am J Public Health. 2002 Sep; 92(9):1387-8. PMID: 12197957; PMCID: PMC1447248.
    39. Fernyak SE, Page-Shafer K, Kellogg T, McFarland W, Katz MH. Risk behaviors and HIV incidence among repeat testers at publicly funded HIV testing sites in San Francisco. J Acquir Immune Defic Syndr. 2002 Sep 01; 31(1):63-70. PMID: 12352152.
      View in: PubMed
    40. Katz MH, Schwarcz SK, Kellogg T, Klausner JD, Dilley JW, Gibson S, McFarland W. Impact of highly active antiretroviral treatment on HIV seroincidence among men who have sex with men: San Francisco. Am J Public Health. 2002 Mar; 92(3):388-94. PMID: 11867317; PMCID: PMC1447086.