Pennan Barry, MD

Volunteer Clinical Professor

Education
Fellowship, 2009 - Infectious Diseases, University of California, San Francisco
Fellowship, 2007 - Epidemic Intelligence Service, Centers for Disease Control and Prevention
Residency, 2005 - Internal Medicine, Johns Hopkins Hospital
MD, 2002 - School of Medicine, Johns Hopkins University
MPH, 2001 - School of Hygiene and Public Health, Johns Hopkins University
Websites
Publications

  1. Saukkonen JJ, Duarte R, Munsiff SS, Winston CA, Mammen MJ, Abubakar I, Acuña-Villaorduña C, Barry PM, Bastos ML, Carr W, Chami H, Chen LL, Chorba T, Daley CL, Garcia-Prats AJ, Holland K, Konstantinidis I, Lipman M, Battista Migliori G, Parvez FM, Shapiro AE, Sotgiu G, Starke JR, Starks AM, Thakore S, Wang SH, Wortham JM, Nahid P. Updates on the Treatment of Drug-Susceptible and Drug-Resistant Tuberculosis: An Official ATS/CDC/ERS/IDSA Clinical Practice Guideline. 2025. PMID: 40693952


  2. Bertumen JB, Pascopella L, Han E, Glenn-Finer R, Wong RJ, Chitnis A, Jaganath D, Jewell MP, Gounder P, McElroy S, Stockman L, Barry P. Expected vs Reported Chronic Hepatitis B Infection Cases in Persons with Active Tuberculosis - California, 2016-2020. 2024. PMID: 38985652


  3. Bertumen JB, Pascopella L, Han E, Glenn-Finer R, Wong RJ, Chitnis A, Jaganath D, Jewell M, Gounder P, McElroy S, Stockman L, Barry P. Epidemiology and Treatment Outcomes of Tuberculosis with Chronic Hepatitis B Infection-California, 2016-2020. 2024. PMID: 38531668


  4. Campbell JR, Brode SK, Barry P, Bastos ML, Bonnet M, Guglielmetti L, Kempker R, Klimuk D, Laborín RL, Milanov V, Singla R, Skrahina A, Trajman A, van der Werf TS, Viiklepp P, Menzies D. Association of indicators of extensive disease and rifampin-resistant tuberculosis treatment outcomes: an individual participant data meta-analysis. 2023. PMID: 38135489


  5. Han E, Nabity SA, Dasgupta-Tsinikas S, Guevara RE, Moore M, Kadakia A, Henry H, Cilnis M, Buhain S, Chitnis A, Chakrabarty M, Ky A, Nguyen Q, Low J, Jain S, Higashi J, Barry PM, Flood J. Tuberculosis Diagnostic Delays and Treatment Outcomes among Patients with COVID-19, California, USA, 2020. 2024. PMID: 38147063


  6. Linde LR, Readhead A, Barry PM, Balmes JR, Lewnard JA. Tuberculosis Diagnoses Following Wildfire Smoke Exposure in California. 2023. PMID: 36103611


  7. Katrak S, Han E, Readhead A, Fung M, Keh C, Flood J, Barry P. Solid organ transplant recipients with tuberculosis disease in California, 2010 to 2020. 2022. PMID: 36695700


  9. Bakhsh Y, Readhead A, Flood J, Barry P. Association of Area-Based Socioeconomic Measures with Tuberculosis Incidence in California. 2022. PMID: 36445646


  10. Mase A, Lowenthal P, True L, Henry L, Barry P, Flood J. Low-Dose Linezolid for Treatment of Patients With Multidrug-Resistant Tuberculosis. 2022. PMID: 36601556


  12. Nabity SA, Han E, Lowenthal P, Henry H, Okoye N, Chakrabarty M, Chitnis AS, Kadakia A, Villarino E, Low J, Higashi J, Barry PM, Jain S, Flood J. Sociodemographic Characteristics, Comorbidities, and Mortality Among Persons Diagnosed With Tuberculosis and COVID-19 in Close Succession in California, 2020. 2021. PMID: 34860244


  13. Mirzazadeh A, Kahn JG, Haddad MB, Hill AN, Marks SM, Readhead A, Barry PM, Flood J, Mermin JH, Shete PB. State-level prevalence estimates of latent tuberculosis infection in the United States by medical risk factors, demographic characteristics and nativity. 2021. PMID: 33793612


  14. Katrak S, Lowenthal P, Shen R, True L, Henry L, Barry P. Bedaquiline for multidrug-resistant tuberculosis and QTc prolongation in California. 2021. PMID: 33598568


  15. Mase S, Chorba T, Parks S, Belanger A, Dworkin F, Seaworth B, Warkentin J, Barry P, Shah N. Bedaquiline for the Treatment of Multidrug-resistant Tuberculosis in the United States. 2020. PMID: 31556947


  17. Parriott A, Kahn JG, Ashki H, Readhead A, Barry PM, Goodell AJ, Flood J, Shete PB. Modeling the Impact of Recommendations for Primary Care-Based Screening for Latent Tuberculosis Infection in California. 2020. PMID: 32735191


  18. Menzies NA, Parriott A, Shrestha S, Dowdy DW, Cohen T, Salomon JA, Marks SM, Hill AN, Winston CA, Asay GR, Barry P, Readhead A, Flood J, Kahn JG, Shete PB. Comparative Modeling of Tuberculosis Epidemiology and Policy Outcomes in California. 2020. PMID: 31626560


  20. Blount RJ, Pascopella L, Barry P, Zabner J, Stapleton EM, Flood J, Balmes J, Nahid P, Catanzaro DG. Residential urban tree canopy is associated with decreased mortality during tuberculosis treatment in California. 2019. PMID: 32000313


  21. Duque-Silva A, Hampole V, Cheng YN, Flood J, Barry PM. Outcomes of Pediatric Central Nervous System Tuberculosis in California, 1993-2011. 2019. PMID: 30189047


  22. Shrestha S, Cherng S, Hill AN, Reynolds S, Flood J, Barry PM, Readhead A, Oxtoby M, Lauzardo M, Privett T, Marks SM, Dowdy DW. Impact and Effectiveness of State-Level Tuberculosis Interventions in California, Florida, New York, and Texas: A Model-Based Analysis. 2019. PMID: 31251797


  23. Lowenthal P, Lin SG, Desmond E, Shah N, Flood J, Barry PM. Evaluation of the Impact of a Sequencing Assay for Detection of Drug Resistance on the Clinical Management of Tuberculosis. 2019. PMID: 30383209


  24. Goodell AJ, Shete PB, Vreman R, McCabe D, Porco TC, Barry PM, Flood J, Marks SM, Hill A, Cattamanchi A, Kahn JG. Outlook for tuberculosis elimination in California: An individual-based stochastic model. 2019. PMID: 30964878


  25. Osman M, Harausz EP, Garcia-Prats AJ, Schaaf HS, Moore BK, Hicks RM, Achar J, Amanullah F, Barry P, Becerra M, Chiotan DI, Drobac PC, Flood J, Furin J, Gegia M, Isaakidis P, Mariandyshev A, Ozere I, Shah NS, Skrahina A, Yablokova E, Seddon JA, Hesseling AC, Collaborative Group for Meta-Analysis of Paediatric Individual Patient Data in MDR TB. Treatment Outcomes in Global Systematic Review and Patient Meta-Analysis of Children with Extensively Drug-Resistant Tuberculosis. 2019. PMID: 30789141


  26. Higashi J, Barry P. Not So Fast: Slowing Tuberculosis Decline in California. 2019. PMID: 30649944


  27. Belanger A, Morris SB, Brostrom R, Yost D, Goswami N, Oxtoby M, Moore M, Westenhouse J, Barry PM, Shah NS. Introduction and evaluation of multidrug-resistant tuberculosis supplemental surveillance in the United States. 2019. PMID: 31720417


  28. Okada RC, Barry PM, Skarbinski J, Chitnis AS. Epidemiology, detection, and management of tuberculosis among end-stage renal disease patients. 2018. PMID: 30231948


  29. Collaborative Group for the Meta-Analysis of Individual Patient Data in MDR-TB treatment–2017, Ahmad N, Ahuja SD, Akkerman OW, Alffenaar JC, Anderson LF, Baghaei P, Bang D, Barry PM, Bastos ML, Behera D, Benedetti A, Bisson GP, Boeree MJ, Bonnet M, Brode SK, Brust JCM, Cai Y, Caumes E, Cegielski JP, Centis R, Chan PC, Chan ED, Chang KC, Charles M, Cirule A, Dalcolmo MP, D'Ambrosio L, de Vries G, Dheda K, Esmail A, Flood J, Fox GJ, Fréchet-Jachym M, Fregona G, Gayoso R, Gegia M, Gler MT, Gu S, Guglielmetti L, Holtz TH, Hughes J, Isaakidis P, Jarlsberg L, Kempker RR, Keshavjee S, Khan FA, Kipiani M, Koenig SP, Koh WJ, Kritski A, Kuksa L, Kvasnovsky CL, Kwak N, Lan Z, Lange C, Laniado-Laborín R, Lee M, Leimane V, Leung CC, Leung EC, Li PZ, Lowenthal P, Maciel EL, Marks SM, Mase S, Mbuagbaw L, Migliori GB, Milanov V, Miller AC, Mitnick CD, Modongo C, Mohr E, Monedero I, Nahid P, Ndjeka N, O'Donnell MR, Padayatchi N, Palmero D, Pape JW, Podewils LJ, Reynolds I, Riekstina V, Robert J, Rodriguez M, Seaworth B, Seung KJ, Schnippel K, Shim TS, Singla R, Smith SE, Sotgiu G, Sukhbaatar G, Tabarsi P, Tiberi S, Trajman A, Trieu L, Udwadia ZF, van der Werf TS, Veziris N, Viiklepp P, Vilbrun SC, Walsh K, Westenhouse J, Yew WW, Yim JJ, Zetola NM, Zignol M, Menzies D. Treatment correlates of successful outcomes in pulmonary multidrug-resistant tuberculosis: an individual patient data meta-analysis. 2018. PMID: 30215381


  30. Harausz EP, Garcia-Prats AJ, Law S, Schaaf HS, Kredo T, Seddon JA, Menzies D, Turkova A, Achar J, Amanullah F, Barry P, Becerra M, Chan ED, Chan PC, Ioana Chiotan D, Crossa A, Drobac PC, Fairlie L, Falzon D, Flood J, Gegia M, Hicks RM, Isaakidis P, Kadri SM, Kampmann B, Madhi SA, Marais E, Mariandyshev A, Méndez-Echevarría A, Moore BK, Nargiza P, Ozere I, Padayatchi N, Ur-Rehman S, Rybak N, Santiago-Garcia B, Shah NS, Sharma S, Shim TS, Skrahina A, Soriano-Arandes A, van den Boom M, van der Werf MJ, van der Werf TS, Williams B, Yablokova E, Yim JJ, Furin J, Hesseling AC, Collaborative Group for Meta-Analysis of Paediatric Individual Patient Data in MDR-TB. Treatment and outcomes in children with multidrug-resistant tuberculosis: A systematic review and individual patient data meta-analysis. 2018. PMID: 29995958


  32. Beavers SF, Pascopella L, Davidow AL, Mangan JM, Hirsch-Moverman YR, Golub JE, Blumberg HM, Webb RM, Royce RA, Buskin SE, Leonard MK, Weinfurter PC, Belknap RW, Hughes SE, Warkentin JV, Welbel SF, Miller TL, Kundipati SR, Lauzardo M, Barry PM, Katz DJ, Garrett DO, Graviss EA, Flood JM, Tuberculosis Epidemiologic Studies Consortium. Tuberculosis Mortality in the United States: Epidemiology and Prevention Opportunities. 2018. PMID: 29490150


  33. Kay AW, Islam SM, Wendorf K, Westenhouse J, Barry PM. Interferon-γ Release Assay Performance for Tuberculosis in Childhood. 2018. PMID: 29728429


  34. Barry PM, Lowenthal P, True L, Henry L, Schack G, Wendorf K, Flood J, Shah N. Benefit of the Shorter Multidrug-Resistant Tuberculosis Treatment Regimen in California and Modified Eligibility Criteria. 2017. PMID: 28665681


  36. Smith SE, Pratt R, Trieu L, Barry PM, Thai DT, Ahuja SD, Shah S. Epidemiology of Pediatric Multidrug-Resistant Tuberculosis in the United States, 1993-2014. 2017. PMID: 28633501


  37. Blount RJ, Pascopella L, Catanzaro DG, Barry PM, English PB, Segal MR, Flood J, Meltzer D, Jones B, Balmes J, Nahid P. Traffic-Related Air Pollution and All-Cause Mortality during Tuberculosis Treatment in California. 2017. PMID: 28963088


  39. Kay A, Barry PM, Annambhotla P, Greene C, Cilnis M, Chin-Hong P, Arger N, McNitt L, Neidlinger N, Shah N, Basavaraju SV, Kuehnert M, Shaw T. Solid Organ Transplant-Transmitted Tuberculosis Linked to a Community Outbreak - California, 2015. 2017. PMID: 28771459


  42. Nahid P, Dorman SE, Alipanah N, Barry PM, Brozek JL, Cattamanchi A, Chaisson LH, Chaisson RE, Daley CL, Grzemska M, Higashi JM, Ho CS, Hopewell PC, Keshavjee SA, Lienhardt C, Menzies R, Merrifield C, Narita M, O'Brien R, Peloquin CA, Raftery A, Saukkonen J, Schaaf HS, Sotgiu G, Starke JR, Migliori GB, Vernon A. Executive Summary: Official American Thoracic Society/Centers for Disease Control and Prevention/Infectious Diseases Society of America Clinical Practice Guidelines: Treatment of Drug-Susceptible Tuberculosis. 2016. PMID: 27621353


  44. Nahid P, Dorman SE, Alipanah N, Barry PM, Brozek JL, Cattamanchi A, Chaisson LH, Chaisson RE, Daley CL, Grzemska M, Higashi JM, Ho CS, Hopewell PC, Keshavjee SA, Lienhardt C, Menzies R, Merrifield C, Narita M, O'Brien R, Peloquin CA, Raftery A, Saukkonen J, Schaaf HS, Sotgiu G, Starke JR, Migliori GB, Vernon A. Official American Thoracic Society/Centers for Disease Control and Prevention/Infectious Diseases Society of America Clinical Practice Guidelines: Treatment of Drug-Susceptible Tuberculosis. 2016. PMID: 27516382


  45. Barry PM, Kay AW, Flood JM, Watt J. Getting to Zero: Tuberculosis Elimination in California. 2016. PMID: 27218013


  47. Duque-Silva A, Robsky K, Flood J, Barry PM. Risk Factors for Central Nervous System Tuberculosis. 2015. PMID: 26438712


  49. Chitnis AS, Robsky K, Schecter GF, Westenhouse J, Barry PM. Trends in Tuberculosis Cases Among Nursing Home Residents, California, 2000 to 2009. 2015. PMID: 26096384


  51. Coscolla M, Barry PM, Oeltmann JE, Koshinsky H, Shaw T, Cilnis M, Posey J, Rose J, Weber T, Fofanov VY, Gagneux S, Kato-Maeda M, Metcalfe JZ. Genomic epidemiology of multidrug-resistant Mycobacterium tuberculosis during transcontinental spread. 2015. PMID: 25601940


  52. Kelly JD, Grace Lin SY, Barry PM, Keh C, Higashi J, Metcalfe JZ. Xpert MTB/RIF false detection of rifampin-resistant tuberculosis from prior infection. 2014. PMID: 25436783


  54. Pascopella L, Barry PM, Flood J, DeRiemer K. Death with tuberculosis in california, 1994-2008. 2014. PMID: 25734158


  55. Chitnis AS, Schecter GF, Cilnis M, Robsky K, Flood JM, Barry PM. Epidemiology of tuberculosis cases with end-stage renal disease, California, 2010. 2014. PMID: 24751696


  56. Prach LM, Pascopella L, Barry PM, Flood J, Porco TC, Hopewell PC, Metcalfe JZ. Rifampin monoresistant tuberculosis and HIV comorbidity in California, 1993-2008: a retrospective cohort study. 2013. PMID: 23842135


  58. Ehman M, Shaw T, Cass A, Lawton E, Westenhouse J, Young J, Royce S, Barry P. Developing and using performance measures based on surveillance data for program improvement in tuberculosis control. 2013. PMID: 23263627


  59. Hess D, Wu A, Golparian D, Esmaili S, Pandori W, Sena E, Klausner JD, Barry P, Unemo M, Pandori M. Genome sequencing of a Neisseria gonorrhoeae isolate of a successful international clone with decreased susceptibility and resistance to extended-spectrum cephalosporins. 2012. PMID: 22908152


  60. Buono S, Wu A, Hess DC, Carlson JS, Rauch L, Philip SS, Barry P, Bernstein K, Klausner JD, Pandori MW. Using the Neisseria gonorrhoeae multiantigen sequence-typing method to assess strain diversity and antibiotic resistance in San Francisco, California. 2012. PMID: 22686196


  62. Barry PM, Gardner TJ, Funk E, Oren E, Field K, Shaw T, Langer AJ. Multistate outbreak of MDR TB identified by genotype cluster investigation. 2012. PMID: 22260877


  63. Marcus JL, Kohn RP, Barry PM, Philip SS, Bernstein KT. Chlamydia trachomatis and Neisseria gonorrhoeae transmission from the female oropharynx to the male urethra. 2011. PMID: 21183864


  64. Barry PM, Kent CK, Philip SS, Klausner JD. Results of a program to test women for rectal chlamydia and gonorrhea. 2010. PMID: 20308835


  65. Bernstein KT, Stephens SC, Barry PM, Kohn R, Philip SS, Liska S, Klausner JD. Chlamydia trachomatis and Neisseria gonorrhoeae transmission from the oropharynx to the urethra among men who have sex with men. 2009. PMID: 19911970


  66. Li L, Barry P, Yeh E, Glaser C, Schnurr D, Delwart E. Identification of a novel human gammapapillomavirus species. 2009. PMID: 19570953


  67. Pandori M, Barry PM, Wu A, Ren A, Whittington WL, Liska S, Klausner JD. Mosaic penicillin-binding protein 2 in Neisseria gonorrhoeae isolates collected in 2008 in San Francisco, California. 2009. PMID: 19546370


  70. Barry PM, Kent CK, Klausner JD. Risk factors for gonorrhea among heterosexuals--San Francisco, 2006. 2009. PMID: 18418303


  71. Barry PM, Scott KC, McCright J, Snell A, Lee M, Bascom T, Kent CK, Klausner JD. Stay in school? Results of a sexually transmitted diseases screening program in San Francisco high schools-2007. 2008. PMID: 18356770


  72. Siedner MJ, Pandori M, Leon SR, Barry PM, Espinosa BJ, Hall ER, Coates TJ, Klausner JD, NIMH Collaborative HIV/STD Prevention Trial Group. Detection of quinolone-resistant Neisseria gonorrhoeae in urogenital specimens with the use of real-time polymerase chain reaction. 2008. PMID: 18275657


  73. Barry PM, Kent CK, Scott KC, Snell A, Goldenson J, Klausner JD. Optimising sexually transmitted infection screening in correctional facilities: San Francisco, 2003-2005. 2007. PMID: 17567685


  74. Siedner MJ, Pandori M, Castro L, Barry P, Whittington WL, Liska S, Klausner JD. Real-time PCR assay for detection of quinolone-resistant Neisseria gonorrhoeae in urine samples. 2007. PMID: 17267635


  75. Barry PM, Klausner JD. The impact of STIs. 2006. PMID: 17086827


  76. Barry PM, Zetola N, Keruly JC, Moore RD, Gebo KA, Lucas GM. Invasive pneumococcal disease in a cohort of HIV-infected adults: incidence and risk factors, 1990-2003. 2006. PMID: 16439878