Pennan Barry, MD
Assistant Clinical Professor
Medicine
School of Medicine

Education & Training

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

Websites

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• California Department of Public Health Tuberculosis Control Branch (cdph.ca.gov)

Publications (74)

Top publication keywords:
Tuberculosis, PulmonaryLatent TuberculosisInterferon-gamma Release TestsChlamydia InfectionsOrgan TransplantationDrug Resistance, Multiple, BacterialCaliforniaAntitubercular AgentsGonorrheaTuberculosis, Multidrug-ResistantTuberculosisMycobacterium tuberculosisCephalosporinsTuberculosis, Central Nervous SystemNeisseria gonorrhoeae

• Epidemiology and Treatment Outcomes of Tuberculosis with Chronic Hepatitis B Infection-California, 2016-2020.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2024 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
• Association of indicators of extensive disease and rifampin-resistant tuberculosis treatment outcomes: an individual participant data meta-analysis.
  Thorax 2024 Campbell JR, Brode SK, Barry P, Bastos ML, Bonnet M, Guglielmetti L, Kempker R, Klimuk D, Laniado Laborín R, Milanov V, Singla R, Skrahina A, Trajman A, van der Werf TS, Viiklepp P, Menzies D
• Tuberculosis Diagnostic Delays and Treatment Outcomes among Patients with COVID-19, California, USA, 2020.
  Emerging infectious diseases 2024 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 Diagnoses Following Wildfire Smoke Exposure in California.
  American journal of respiratory and critical care medicine 2023 Linde LR, Readhead A, Barry PM, Balmes JR, Lewnard JA
• Solid organ transplant recipients with tuberculosis disease in California, 2010 to 2020.
  American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons 2023 Katrak S, Han E, Readhead A, Fung M, Keh C, Flood J, Barry P

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• Association of Area-Based Socioeconomic Measures with Tuberculosis Incidence in California.
  Journal of immigrant and minority health 2022 Bakhsh Y, Readhead A, Flood J, Barry P
• Low-Dose Linezolid for Treatment of Patients With Multidrug-Resistant Tuberculosis.
  Open forum infectious diseases 2022 Mase A, Lowenthal P, True L, Henry L, Barry P, Flood J
• Health insurance, healthcare utilization and language use among populations who experience risk for tuberculosis, California 2014-2017.
  PloS one 2022 Readhead A, Flood J, Barry P
• A cross-sectional study of patients with extrapulmonary tuberculosis and normal chest radiographs - what characteristics were associated with sputum culture positivity?
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2022 Le V, Pascopella L, Westenhouse J, Barry P
• Sociodemographic Characteristics, Comorbidities, and Mortality Among Persons Diagnosed With Tuberculosis and COVID-19 in Close Succession in California, 2020.
  JAMA network open 2021 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
• State-level prevalence estimates of latent tuberculosis infection in the United States by medical risk factors, demographic characteristics and nativity.
  PloS one 2021 Mirzazadeh A, Kahn JG, Haddad MB, Hill AN, Marks SM, Readhead A, Barry PM, Flood J, Mermin JH, Shete PB
• Bedaquiline for multidrug-resistant tuberculosis and QTc prolongation in California.
  Journal of clinical tuberculosis and other mycobacterial diseases 2021 Katrak S, Lowenthal P, Shen R, True L, Henry L, Barry P
• Bedaquiline for the Treatment of Multidrug-resistant Tuberculosis in the United States.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2020 Mase S, Chorba T, Parks S, Belanger A, Dworkin F, Seaworth B, Warkentin J, Barry P, Shah N
• Assessing Complexity Among Patients With Tuberculosis in California, 1993-2016.
  Open forum infectious diseases 2020 Vaisman A, Barry P, Flood J
• Modeling the Impact of Recommendations for Primary Care-Based Screening for Latent Tuberculosis Infection in California.
  Public health reports (Washington, D.C. : 1974) 2020 Parriott A, Kahn JG, Ashki H, Readhead A, Barry PM, Goodell AJ, Flood J, Shete PB
• Comparative Modeling of Tuberculosis Epidemiology and Policy Outcomes in California.
  American journal of respiratory and critical care medicine 2020 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
• Preventing Tuberculosis Disease: Making a Case for Enhanced Tuberculosis Screening in People Immigrating to Low-incidence Countries.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2019 Katrak S, Barry P
• Residential urban tree canopy is associated with decreased mortality during tuberculosis treatment in California.
  The Science of the total environment 2019 Blount RJ, Pascopella L, Barry P, Zabner J, Stapleton EM, Flood J, Balmes J, Nahid P, Catanzaro DG
• Outcomes of Pediatric Central Nervous System Tuberculosis in California, 1993-2011.
  Journal of the Pediatric Infectious Diseases Society 2019 Duque-Silva A, Hampole V, Cheng YN, Flood J, Barry PM
• Impact and Effectiveness of State-Level Tuberculosis Interventions in California, Florida, New York, and Texas: A Model-Based Analysis.
  American journal of epidemiology 2019 Shrestha S, Cherng S, Hill AN, Reynolds S, Flood J, Barry PM, Readhead A, Oxtoby M, Lauzardo M, Privett T, Marks SM, Dowdy DW
• Evaluation of the Impact of a Sequencing Assay for Detection of Drug Resistance on the Clinical Management of Tuberculosis.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2019 Lowenthal P, Lin SG, Desmond E, Shah N, Flood J, Barry PM
• Outlook for tuberculosis elimination in California: An individual-based stochastic model.
  PloS one 2019 Goodell AJ, Shete PB, Vreman R, McCabe D, Porco TC, Barry PM, Flood J, Marks SM, Hill A, Cattamanchi A, Kahn JG
• Treatment Outcomes in Global Systematic Review and Patient Meta-Analysis of Children with Extensively Drug-Resistant Tuberculosis.
  Emerging infectious diseases 2019 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, …
• Not So Fast: Slowing Tuberculosis Decline in California.
  American journal of public health 2019 Higashi J, Barry P
• Introduction and evaluation of multidrug-resistant tuberculosis supplemental surveillance in the United States.
  Journal of clinical tuberculosis and other mycobacterial diseases 2019 Belanger A, Morris SB, Brostrom R, Yost D, Goswami N, Oxtoby M, Moore M, Westenhouse J, Barry PM, Shah NS
• Epidemiology, detection, and management of tuberculosis among end-stage renal disease patients.
  Infection control and hospital epidemiology 2018 Okada RC, Barry PM, Skarbinski J, Chitnis AS
• Treatment correlates of successful outcomes in pulmonary multidrug-resistant tuberculosis: an individual patient data meta-analysis.
  Lancet (London, England) 2018 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…
• Treatment and outcomes in children with multidrug-resistant tuberculosis: A systematic review and individual patient data meta-analysis.
  PLoS medicine 2018 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, …
• Using evidence to improve adherence and outcomes: personalized packages of patient support.
  The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease 2018 Barry PM, True L
• Tuberculosis Mortality in the United States: Epidemiology and Prevention Opportunities.
  Annals of the American Thoracic Society 2018 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, …
• Interferon-γ Release Assay Performance for Tuberculosis in Childhood.
  Pediatrics 2018 Kay AW, Islam SM, Wendorf K, Westenhouse J, Barry PM
• Benefit of the Shorter Multidrug-Resistant Tuberculosis Treatment Regimen in California and Modified Eligibility Criteria.
  American journal of respiratory and critical care medicine 2017 Barry PM, Lowenthal P, True L, Henry L, Schack G, Wendorf K, Flood J, Shah N
• Mainstreaming Latent Tuberculosis Infection Testing and Treatment in the United States: Who and How.
  JAMA internal medicine 2017 Flood J, Barry PM
• Epidemiology of Pediatric Multidrug-Resistant Tuberculosis in the United States, 1993-2014.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2017 Smith SE, Pratt R, Trieu L, Barry PM, Thai DT, Ahuja SD, Shah S
• Traffic-Related Air Pollution and All-Cause Mortality during Tuberculosis Treatment in California.
  Environmental health perspectives 2017 Blount RJ, Pascopella L, Catanzaro DG, Barry PM, English PB, Segal MR, Flood J, Meltzer D, Jones B, Balmes J, Nahid P
• A systematic synthesis of direct costs to treat and manage tuberculosis disease applied to California, 2015.
  BMC research notes 2017 Oh P, Pascopella L, Barry PM, Flood JM
• Solid Organ Transplant-Transmitted Tuberculosis Linked to a Community Outbreak - California, 2015.
  MMWR. Morbidity and mortality weekly report 2017 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
• Re: "Prebiologic Therapy Tuberculosis Screening Experience in a Pediatric Rheumatology Center: TST and IGRA Are Both Necessary".
  The Pediatric infectious disease journal 2017 Lowenthal P, Barry PM, Flood J
• Use of Nucleic Acid Amplification Tests in Tuberculosis Patients in California, 2010-2013.
  Open forum infectious diseases 2016 Peralta G, Barry P, Pascopella L
• 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.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2016 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, …
• Clinical Impact on Tuberculosis Treatment Outcomes of Discordance Between Molecular and Growth-Based Assays for Rifampin Resistance, California 2003-2013.
  Open forum infectious diseases 2016 Shah NS, Grace Lin SY, Barry PM, Cheng YN, Schecter G, Desmond E
• Official American Thoracic Society/Centers for Disease Control and Prevention/Infectious Diseases Society of America Clinical Practice Guidelines: Treatment of Drug-Susceptible Tuberculosis.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2016 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, …
• Getting to Zero: Tuberculosis Elimination in California.
  Current epidemiology reports 2016 Barry PM, Kay AW, Flood JM, Watt J
• High Discordance Between Pre-US and Post-US Entry Tuberculosis Test Results Among Immigrant Children: Is it Time to Adopt Interferon Gamma Release Assay for Preentry Tuberculosis Screening?
  The Pediatric infectious disease journal 2016 Lowenthal P, Barry PM, Flood J
• Risk Factors for Central Nervous System Tuberculosis.
  Pediatrics 2015 Duque-Silva A, Robsky K, Flood J, Barry PM
• Review of nucleic acid amplification tests and clinical prediction rules for diagnosis of tuberculosis in acute care facilities.
  Infection control and hospital epidemiology 2015 Chitnis AS, Davis JL, Schecter GF, Barry PM, Flood JM
• Trends in Tuberculosis Cases Among Nursing Home Residents, California, 2000 to 2009.
  Journal of the American Geriatrics Society 2015 Chitnis AS, Robsky K, Schecter GF, Westenhouse J, Barry PM
• Increased risk of tuberculosis among foreign-born persons with diabetes in California, 2010-2012.
  BMC public health 2015 Demlow SE, Oh P, Barry PM
• Genomic epidemiology of multidrug-resistant Mycobacterium tuberculosis during transcontinental spread.
  The Journal of infectious diseases 2015 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
• Xpert MTB/RIF false detection of rifampin-resistant tuberculosis from prior infection.
  American journal of respiratory and critical care medicine 2014 Kelly JD, Grace Lin SY, Barry PM, Keh C, Higashi J, Metcalfe JZ
• Tuberculosis treatment managed by providers outside the Public Health Department: lessons for the Affordable Care Act.
  PloS one 2014 Ehman M, Flood J, Barry PM
• Death with tuberculosis in california, 1994-2008.
  Open forum infectious diseases 2014 Pascopella L, Barry PM, Flood J, DeRiemer K
• Epidemiology of tuberculosis cases with end-stage renal disease, California, 2010.
  American journal of nephrology 2014 Chitnis AS, Schecter GF, Cilnis M, Robsky K, Flood JM, Barry PM
• Rifampin monoresistant tuberculosis and HIV comorbidity in California, 1993-2008: a retrospective cohort study.
  AIDS (London, England) 2013 Prach LM, Pascopella L, Barry PM, Flood J, Porco TC, Hopewell PC, Metcalfe JZ
• Characteristics of males infected with common Neisseria gonorrhoeae sequence types in the Gonococcal Isolate Surveillance Project, San Francisco, California, 2009.
  American journal of epidemiology 2013 Bernstein KT, Marcus JL, Barry PM, Pandori MW, Buono S, Hess D, Philip SS
• Developing and using performance measures based on surveillance data for program improvement in tuberculosis control.
  Journal of public health management and practice : JPHMP 2013 Ehman M, Shaw T, Cass A, Lawton E, Westenhouse J, Young J, Royce S, Barry P
• Genome sequencing of a Neisseria gonorrhoeae isolate of a successful international clone with decreased susceptibility and resistance to extended-spectrum cephalosporins.
  Antimicrobial agents and chemotherapy 2012 Hess D, Wu A, Golparian D, Esmaili S, Pandori W, Sena E, Klausner JD, Barry P, Unemo M, Pandori M
• Using the Neisseria gonorrhoeae multiantigen sequence-typing method to assess strain diversity and antibiotic resistance in San Francisco, California.
  Microbial drug resistance (Larchmont, N.Y.) 2012 Buono S, Wu A, Hess DC, Carlson JS, Rauch L, Philip SS, Barry P, Bernstein K, Klausner JD, Pandori MW
• The use of cephalosporins for gonorrhea: an update on the rising problem of resistance.
  Expert opinion on pharmacotherapy 2012 Stoltey JE, Barry PM
• Multistate outbreak of MDR TB identified by genotype cluster investigation.
  Emerging infectious diseases 2012 Barry PM, Gardner TJ, Funk E, Oren E, Field K, Shaw T, Langer AJ
• Chlamydia trachomatis and Neisseria gonorrhoeae transmission from the female oropharynx to the male urethra.
  Sexually transmitted diseases 2011 Marcus JL, Kohn RP, Barry PM, Philip SS, Bernstein KT
• Results of a program to test women for rectal chlamydia and gonorrhea.
  Obstetrics and gynecology 2010 Barry PM, Kent CK, Philip SS, Klausner JD
• Chlamydia trachomatis and Neisseria gonorrhoeae transmission from the oropharynx to the urethra among men who have sex with men.
  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2009 Bernstein KT, Stephens SC, Barry PM, Kohn R, Philip SS, Liska S, Klausner JD
• Identification of a novel human gammapapillomavirus species.
  The Journal of general virology 2009 Li L, Barry P, Yeh E, Glaser C, Schnurr D, Delwart E
• Mosaic penicillin-binding protein 2 in Neisseria gonorrhoeae isolates collected in 2008 in San Francisco, California.
  Antimicrobial agents and chemotherapy 2009 Pandori M, Barry PM, Wu A, Ren A, Whittington WL, Liska S, Klausner JD
• The use of cephalosporins for gonorrhea: the impending problem of resistance.
  Expert opinion on pharmacotherapy 2009 Barry PM, Klausner JD
• Is jail screening associated with a decrease in Chlamydia positivity among females seeking health services at community clinics?-San francisco, 1997-2004.
  Sexually transmitted diseases 2009 Barry PM, Kent CK, Scott KC, Goldenson J, Klausner JD
• Risk factors for gonorrhea among heterosexuals--San Francisco, 2006.
  Sexually transmitted diseases 2009 Barry PM, Kent CK, Klausner JD
• Stay in school? Results of a sexually transmitted diseases screening program in San Francisco high schools-2007.
  Sexually transmitted diseases 2008 Barry PM, Scott KC, McCright J, Snell A, Lee M, Bascom T, Kent CK, Klausner JD
• Detection of quinolone-resistant Neisseria gonorrhoeae in urogenital specimens with the use of real-time polymerase chain reaction.
  International journal of STD & AIDS 2008 Siedner MJ, Pandori M, Leon SR, Barry PM, Espinosa BJ, Hall ER, Coates TJ, Klausner JD, NIMH Collaborative HIV/STD Prevention Trial Group
• Optimising sexually transmitted infection screening in correctional facilities: San Francisco, 2003-2005.
  Sexually transmitted infections 2007 Barry PM, Kent CK, Scott KC, Snell A, Goldenson J, Klausner JD
• Real-time PCR assay for detection of quinolone-resistant Neisseria gonorrhoeae in urine samples.
  Journal of clinical microbiology 2007 Siedner MJ, Pandori M, Castro L, Barry P, Whittington WL, Liska S, Klausner JD
• The impact of STIs.
  MLO: medical laboratory observer 2006 Barry PM, Klausner JD
• Invasive pneumococcal disease in a cohort of HIV-infected adults: incidence and risk factors, 1990-2003.
  AIDS (London, England) 2006 Barry PM, Zetola N, Keruly JC, Moore RD, Gebo KA, Lucas GM