Travis Porco, PhD, MPH 
Adjunct Associate Professor, Division of Preventive Medicine and Public Health, Dept of Epidemiology and Biostatistics, and Department of Ophthalmology
Francis I Proctor Institute for Research in Ophthalmology
Other Activities
Lecturer, Mathematical Epidemiology, School of Public Health, UC Berkeley
Contact Information
Travis C. Porco, PhD, MPH
Box 0412
513 Parnassus Avenue Room S351
University of California, San Francisco
San Francisco, California 94143-0412
Telephone: (415) 476-4101
Mobile telephone: (510) 323-3143
FAX: (415) 476-0527
Email: travis.porco@ucsf.edu
Related Link
mαthεpi.cοm
Education
PhD: Biophysics, University of California, Berkeley, Mathematical modeling of Lyme disease, Wayne Getz, advisor
MPH: Biostatistics, School of Public Health, University
of California, Berkelely
Research Interests
Mathematical modeling, simulation, and forecasting of infectious diseases
Representative Publications
Porco TC, Martin J, Page-Shafer K, Cheng A, Charlebois E, Grant RM, and Osmond D.
Decline in HIV infectivity following the introduction of highly active antiretroviral
therapy, AIDS, 18:81–88, 2004.
Kagay CR, Porco TC, Liechty CA, Charlebois E, Clark R, Guzman D, Moss AR, and
Bangsberg DR. Modeling the impact of modified directly observed HIV antiretroviral
therapy on viral suppression and resistance, disease progression, and death, Clinical
Infectious Diseases, 38 (Supplement 5):S414–420, 2004.
Porco TC, Holbrook K, Fernyak S, Portnoy D, Reiter R, and Arag´on T. Logistics of
community smallpox control through contact tracing and ring vaccination: a stochastic
network model, BMC Public Health 4:34, 2004.
Bangsberg DR, Porco TC, Kagay C, Charlebois ED, Deeks SG, Guzman D, Clark R,
and Moss A. Modeling the HIV protease inhibitor adherence-resistance curve using
empirically derived estimates, Journal of Infectious Diseases, 190(1):162–165, 2004.
Gross K, Porco TC, and Grant RM. HIV-1 superinfection and viral diversity, AIDS,
18(11):1513–1520, 2004.
Porco TC, Lloyd-Smith J, Gross K, and Galvani A. The effect of treatment on
pathogen virulence, Journal of Theoretical Biology 233(1):91-102, 2005.
S´anchez MA, Grant RM, Porco TC, Gross KL, and Getz WM. A decrease in drug
resistance levels of the HIV epidemic can be bad news, Bulletin of Mathematical
Biology 67:761–782, 2005.
Granich RM, Oh P, Lewis B, Porco TC, Flood JM. Multi-drug resistance among
persons with tuberculosis in California, 1994–2003, Journal of the American Medical
Association 293:2732–2730, 2005.
Porco TC, Lewis B, Marseille E, Grinsdale J, Flood JM, and Royce SE. Costeffectiveness
of tuberculosis evaluation and treatment of newly-arrived immigrants,
BMC Public Health 6:157, 2006.
Salomon JA, Lloyd-Smith JO, Getz WM, Resch S, S´anchez M, Porco TC, and
Borgdorff MW. Prospects for advancing tuberculosis control efforts through novel
therapies, PLoS Medicine 3(8):e273, 2006.
Sprinson JE, Lawton ES, Porco TC, Flood JM, and Westenhouse JL. Assessing the
validity of tuberculosis surveillance data in California, BMC Public Health
6:217, 2006.
Eisenberg JNS, Scott J, and Porco TC. Integrating public health control strategies:
balancing water sanitation and hygiene interventions to reduce diarrheal disease burden,
American Journal of Public Health 97:846–852, 2007.
Flaherman VJ, Porco TC, Marseille E, and Royce SE. Cost-effectiveness of
alternative strategies for tuberculosis screening prior to kindergarten entry, Pediatrics
120:90-99, 2007.
Ray KJ, Porco TC, Hong KC, Lee DC, Alemayehu W, Melese M, Lakew T, Yi E,
House J, Chidambaram JD, Whitcher JP, Gaynor BD, Lietman TM. A rationale for
continuing mass antibiotic distributions for trachoma. BMC Infectious Diseases 7:91, 2007.
Melese M, Alemayehu W, Lakew T, Yi E, House J, Chidambaram JD, Zhou Z, Cevallos V,
Ray K, Hong KC, Porco TC, Phan I, Zaidi A, Gaynor BD, Whitcher JP, Lietman TM.
Comparison of annual and biannual mass antibiotic administration for elimination of
infectious trachoma, JAMA 299:778–784, 2008.
Sansanayudh W, Cevallos V, Porco TC, Margolis TP, Lietman TM, Acharya NR.
Fusarium and Acanthamoeba keratitis: can a single center detect outbreaks?
British Journal of Ophthalmology 92(5):720–721, 2008.
Bhisitkul RB, Winn BJ, Lee OT, Wong J, Pereira D, Porco TC, He X, Hahn P,
Duanaief JL. Neuroprotective effect of intravitreal triamcinolone acetonide against
photoreceptor apoptosis in a rabbit model of subretinal hemorrhage, Investigative
Ophthalmology and Visual Science 49(9):4071–4077, 2008.
Banerjee R, Schecter GF, Flood J, Porco TC. Extensively drug-resistant
tuberculosis: new strains, new challenges. Expert reviews in Anti-infective Therapy
6(5):713–724, 2008.
Lim A, Stewart J, Chui TY, Lin M, Ray K, Lietman T, Porco T, Jung L,
Seiff S, Lin S. Prevalence and risk factors of diabetic retinopathy in a multi-racial
underserved population. Ophthalmic Epidemiology 15(6):402–409, 2008.
Rutar T, Porco T, Naseri A. Risk factors for intraoperative complications
in resident-performed phacoemulsification surgery. Ophthalmology 116(3):431–436, 2009.
House JI, Ayele B, Porco T, Zhou Z, Hong KC, Gebre T, Ray KJ, Keenan JD,
Stoller NE, Whitcher JP, Gaynor BD, Emerson PM, Lietman TM. Assessment of herd
protection against trachoma due to repeated mass antibiotic distributions: a cluster-
randomized trial. Lancet 373:1111–1118, 2009.
Chen YT, Li S, Nikulina K, Porco T, Gallup M, McNamara N. Immune profile
of squamous metaplasia development in autoimmune regulator-deficient dry eye.
Molecular Vision 15:563–576, 2009.
Ray KJ, Lietman TM, Porco TC, Keenan J, Bailey R, Solomon AW, Burton M,
Harding-Esch E, Holland M, Mabey D. When can antibiotic treatments for trachoma
be discontinued? Graduating communities in three African countries. PLoS Neglected Tropical Diseases 3(6):e458, 2009.
Porco TC, Gebre T, Ayele B, House J, Keenan J, Zhou Z, Hong KC, Stoller N,
Ray KJ, Emerson P, Gaynor BD, Lietman TM. Effect of mass distribution of azithromycin
for trachoma control on overall mortality in Ethiopian children: a randomized trial.
{\it JAMA} 302(9):962&endash;968, 2009.
Pekmezci M, Porco TC, Lin SC. Anterior segment optical coherence tomography
as a screening tool for the assessment of the anterior segment angle. Ophthalmic Surgery. Lasers and Imaging 40(4):389–398, 2009.
Lakew T, Alemayehu W, Melese M, Yi E, House JI, Hong KC, Zhou Z, Ray KJ, Porco TC,
Gaynor BD, Lietman TM, Keenan JD. Importance of coverage and endemicity on the return
of infectious trachoma after a single mass antibiotic distribution. PLoS Neglected Tropical Diseases 3(8):e507, 2009.
Sharifi E, Porco TC, Naseri A. Cost-effectiveness analysis of intracameral cefuroxime
use for prophylaxis of endophthalmitis after cataract surgery. Ophthalmology 116(10):1887–1896, 2009.
Seider MI, Yee RY, Wang D, Pekmezci M, Porco TC, Lin SC. Optic disk size variability
between African, Asian, White, Hispanic, and Filipino Americans using Heidelberg
retinal tomography. Journal of Glaucoma 18(8):595–600, 2009.
UNAIDS/WHO/SACEMA Expert Group on Modelling the Impact and Cost of Male
Circumcision for HIV Prevention (Hankins C, Hargrove J, Williams B, Raddad LA,
Auvert B, Bollinger L, Dorrington R, Ghani A, Gray R, Hallett T, Kahn JG, Lohse N,
Nagelkerke N, Porco TC, Schmid G, Stover J, Weiss H, Welte A, White P, White R). Male
circumcision for HIV prevention in high HIV prevalence settings: what can mathematical
modeling contribute to informed decision-making? PLoS Medicine 6(9):e1000109, 2009.
Keenan JD, Lakew T, Alemayehu W, Melese M, Porco TC, Yi E, House JI, Zhou Z,
Ray KJ, Acharya NR, Whitcher JP, Gaynor BD, Lietman TM. Clinical activity and
polymerase chain reaction evidence of chlamydial infection after repeated mass antibiotic
treatments for trachoma. American Journal of Tropical Medicine and Hygiene 82(3):482–487, 2010.
Shah NA, House J, Lakew T, Alemayehu W, Halfpenny C, Hong KC, Porco TC,
Whitcher JP, Lietman TM, Gaynor BD. Travel and implications for the elimination of
trachoma in Ethiopia. Ophthalmic Epidemiology 17(2):113–117, 2010.
Seider MI, Sales CS, Lee RY, Agadzi AK, Porco TC, Weinreb RN, Lin SC.
High prevalence of narrow angles among Filipino-American patients. Journal of Glaucoma, Epub, 2010.
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