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Timothy Kellogg

TitleSenior Epi/Biostat Officer
SchoolUCSF Chancellor/EVC/FAS
DepartmentPrevention & Public Health
Address550 16th. Street
San Francisco CA 94158
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    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. 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 TA, 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.
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    2. 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.
    3. Grasso MA, Schwarcz S, Galbraith JS, Musyoki H, Kambona C, Kellogg TA. 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.
    4. Mwangi MW, Kellogg TA, 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.
    5. 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.
    6. 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.
    7. 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.
    8. 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.
    9. 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.
    10. 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.
    11. 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
    12. 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.
    13. 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
    14. 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.
    15. 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.
    16. 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.
    17. 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
    18. 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
    19. Basavaraju SV, Mwangi J, Kellogg T, Odawo L, Marum LH. Quantification of print, radio and television exposure among previous blood donors in Kenya: an opportunity for encouraging repeat donation in a resource-limited setting? Vox Sang. 2010 Oct; 99(3):274-7. PMID: 20598106.
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    20. Kimani D, Mwangi J, Mwangi M, Bunnell R, Kellogg T, Oluoch T, Gichangi A, Kaiser R, Mugo N, Odongo T, Oduor M, Marum L. Blood donors in Kenya: a comparison of voluntary and family replacement donors based on a population-based survey. Vox Sang. 2011 Feb; 100(2):212-8. PMID: 20738836.
      View in: PubMed
    21. 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
    22. 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.
    23. 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
    24. Scheer S, Kellogg T, Klausner JD, Schwarcz S, Colfax G, Bernstein K, Louie B, Dilley JW, Hecht J, Truong HM, Katz MH, McFarland W. HIV is hyperendemic among men who have sex with men in San Francisco: 10-year trends in HIV incidence, HIV prevalence, sexually transmitted infections and sexual risk behaviour. Sex Transm Infect. 2008 Nov; 84(6):493-8. PMID: 19028954.
      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.
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    27. Truong HM, Truong HH, Kellogg T, Klausner JD, Katz MH, Dilley J, Knapper K, Chen S, Prabhu R, Grant RM, Louie B, McFarland W. Increases in sexually transmitted infections and sexual risk behaviour without a concurrent increase in HIV incidence among men who have sex with men in San Francisco: a suggestion of HIV serosorting? Sex Transm Infect. 2006 Dec; 82(6):461-6. PMID: 17151031; PMCID: PMC2563862.
    28. 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
    29. 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.
    30. 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.
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    31. 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
    32. 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.
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    33. 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
    34. 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.
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    35. 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.
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    36. 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.
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    37. 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
    38. 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
    39. 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.
    40. 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.
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    41. 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.
    42. Kellogg T, Clements-Nolle K, Dilley J, Katz MH, McFarland W. Incidence of human immunodeficiency virus among male-to-female transgendered persons in San Francisco. J Acquir Immune Defic Syndr. 2001 Dec 01; 28(4):380-4. PMID: 11707676.
      View in: PubMed
    43. Katz MH, Cunningham WE, Fleishman JA, Andersen RM, Kellogg T, Bozzette SA, Shapiro MF. Effect of case management on unmet needs and utilization of medical care and medications among HIV-infected persons. Ann Intern Med. 2001 Oct 16; 135(8 Pt 1):557-65. PMID: 11601927.
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    44. Kellogg T, McFarland W, Perlman JL, Weinstock H, Bock S, Katz MH, Gerberding JL, Bangsberg DR. HIV incidence among repeat HIV testers at a county hospital, San Francisco, California, USA. J Acquir Immune Defic Syndr. 2001 Sep 01; 28(1):59-64. PMID: 11579278.
      View in: PubMed
    45. Schwarcz S, Kellogg T, McFarland W, Louie B, Kohn R, Busch M, Katz M, Bolan G, Klausner J, Weinstock H. Differences in the temporal trends of HIV seroincidence and seroprevalence among sexually transmitted disease clinic patients, 1989-1998: application of the serologic testing algorithm for recent HIV seroconversion. Am J Epidemiol. 2001 May 15; 153(10):925-34. PMID: 11384946.
      View in: PubMed
    46. McFarland W, Kellogg T, Louie B, Murrill C, Katz MH. Low estimates of HIV seroconversions among clients of a drug treatment clinic in San Francisco, 1995 to 1998. J Acquir Immune Defic Syndr. 2000 Apr 15; 23(5):426-9. PMID: 10866236.
      View in: PubMed
    47. Katz MH, Cunningham WE, Mor V, Andersen RM, Kellogg T, Zierler S, Crystal SC, Stein MD, Cylar K, Bozzette SA, Shapiro MF. Prevalence and predictors of unmet need for supportive services among HIV-infected persons: impact of case management. Med Care. 2000 Jan; 38(1):58-69. PMID: 10630720.
      View in: PubMed
    48. McFarland W, Busch MP, Kellogg T, Rawal BD, Satten GA, Katz MH, Dilley J, Janssen RS. Detection of early HIV infection and estimation of incidence using a sensitive/less-sensitive enzyme immunoassay testing strategy at anonymous counseling and testing sites in San Francisco. J Acquir Immune Defic Syndr. 1999 Dec 15; 22(5):484-9. PMID: 10961610.
      View in: PubMed
    49. Kellogg T, McFarland W, Katz M. Recent increases in HIV seroconversion among repeat anonymous testers in San Francisco. AIDS. 1999 Nov 12; 13(16):2303-4. PMID: 10563716.
      View in: PubMed
    50. Kim AA, McFarland W, Kellogg T, Katz MH. Sentinel surveillance for HIV infection and risk behavior among adolescents entering juvenile detention in San Francisco: 1990-1995. AIDS. 1999 Aug 20; 13(12):1597-8. PMID: 10465095.
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    51. McQuitty M, McFarland W, Kellogg T, White E, Katz MH. Home collection versus publicly funded HIV testing in San Francisco: who tests where? J Acquir Immune Defic Syndr. 1999 Aug 15; 21(5):417-22. PMID: 10458624.
      View in: PubMed
    52. Katz MH, McFarland W, Guillin V, Fenstersheib M, Shaw M, Kellogg T, Lemp GF, MacKellar D, Valleroy LA. Continuing high prevalence of HIV and risk behaviors among young men who have sex with men: the young men's survey in the San Francisco Bay Area in 1992 to 1993 and in 1994 to 1995. J Acquir Immune Defic Syndr Hum Retrovirol. 1998 Oct 01; 19(2):178-81. PMID: 9768628.
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    53. McFarland W, Kellogg T, Dilley J, Katz MH. Estimation of human immunodeficiency virus (HIV) seroincidence among repeat anonymous testers in San Francisco. Am J Epidemiol. 1997 Oct 15; 146(8):662-4. PMID: 9345120.
      View in: PubMed
    54. Schwarcz SK, Spitters C, Ginsberg MM, Anderson L, Kellogg T, Katz MH. Predictors of human immunodeficiency virus counseling and testing among sexually transmitted disease clinic patients. Sex Transm Dis. 1997 Jul; 24(6):347-52. PMID: 9243742.
      View in: PubMed
    55. Lemp GF, Jones M, Kellogg T, Nieri GN, Anderson L, Withum D, Katz M. HIV seroprevalence and risk behaviors among lesbians and bisexual women in San Francisco and Berkeley, California. Am J Public Health. 1995 Nov; 85(11):1549-52. PMID: 7485670; PMCID: PMC1615696.
    56. Schwarcz SK, Kellogg T, Kohn RP, Katz MH, Lemp GF, Bolan GA. Temporal trends in human immunodeficiency virus seroprevalence and sexual behavior at the San Francisco municipal sexually transmitted disease clinic, 1989-1992. Am J Epidemiol. 1995 Aug 01; 142(3):314-22. PMID: 7631635.
      View in: PubMed
    57. Schwarcz SK, Bolan GA, Kellogg T, Kohn R, Lemp GF. Comparison of voluntary and blinded human immunodeficiency virus type 1 (HIV-1) seroprevalence surveys in a high prevalence sexually transmitted disease clinic population. Am J Epidemiol. 1993 Mar 15; 137(6):600-8. PMID: 8470661.
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