Penn Medicine Provider
Travel Medicine, Infectious Diseases
Katharine J. Bar, MD
5.0
(56)
Accepting new patients
Sees patients age 18 and up
Penn International Travel Medicine and Immunization Clinic Perelman
View 1 additional location

About me

  • Director, Virology Core, Penn Center for AIDS Research
  • Associate Professor of Medicine (Infectious Diseases)

Education and training

  • Medical School: University of Iowa College of Medicine
  • Residency: Virginia Commonwealth University
  • Fellowship: University of Alabama at Birmingham (UAB Hospital)

What my patients think about me

Average Rating
5.0

56 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

April 2025
5.0
5.0
dr bar is very respectful, kind and i just really appreciate her
April 2025
5.0
5.0
i'm very satisfied with my doctors patient care.
March 2025
5.0
5.0
dr bar is the best!!!
March 2025
5.0
5.0
dr bar is a knowledgeable and a caring professional that goes far beyond expectations.

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
Dr. Bar is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Pahus MH, Zheng Y, Olefsky M, Gunst JD, Tebas P, Taiwo B, Søgaard OS, Peluso MJ, Lie Y, Reeves JD, Petropoulos CJ, Caskey M, Bar KJ. Evaluation and real-world experience of a neutralization susceptibility screening assay for broadly neutralizing anti-HIV-1 antibodies. , J Infect Dis, doi: 10.1093/infdis/jiae486: 2025


Mainou E, Berendam SJ, Obregon-Perko V, Uffman EA, Phan CT, Shaw GM, Bar KJ, Kumar MR, Fray EJ, Siliciano JM, Siliciano RF, Silvestri G, Permar SR, Fouda GG, McCarthy J, Chahroudi A, Conway JM, Chan C. Assessing the impact of autologous virus neutralizing antibodies on viral rebound time in postnatally SHIV-infected ART-treated infant rhesus macaques. , Epidemics, 48(100780): 2024


Tebas P, Jadlowsky JK, Shaw PA, Tian L, Esparza E, Brennan AL, Kim S, Naing SY, Richardson MW, Vogel AN, Maldini CR, Kong H, Liu X, Lacey SF, Bauer AM, Mampe F, Richman LP, Lee G, Ando D, Levine BL, Porter DL, Zhao Y, Siegel DL, Bar KJ, June CH, Riley JL CCR5-edited CD4+ T cells augment HIV-specific immunity to enable post-rebound control of HIV replication , J Clin Invest, 134(9): 2024,e181576


Whitehill GD, Joy J, Marino FE, Krause R, Mallick S, Courtney H, Park K, Carey J, Hoh R, Hartig H, Pae V, Sarvadhavabhatla S, Donaire S, Deeks SG, Lynch RM, Lee SA, Bar KJ Autologous neutralizing antibody responses after antiretroviral therapy in acute and early HIV-1 , J Clin Invest, 134(11): 2024


Miner MD, deCamp A, Grunenberg N, De Rosa SC, Fiore-Gartland A, Bar K, Spearman P, Allen M, Yu PC, Manso B, Frahm N, Kalams S, Baden L, Keefer MC, Scott HM, Novak R, Van Tieu H, Tomaras GD, Kublin JG, McElrath MJ, Corey L, Frank I; HVTN 085 Study Team Polytopic fractional delivery of an HIV vaccine alters cellular responses and results in increased epitope breadth in a phase 1 randomized trial , EBioMedicine, 100: 2024,104987


Maurine D. Miner, Allan deCamp, Nicole Grunenberg, Stephen C. De Rosa, Andrew Fiore-Gartland, Katherine Bar, Paul Spearman, Mary Allen, Pei-Chun Yu, Bryce Manso, Nicole Frahm, Spyros Kalams, Lindsey Baden, Michael C. Keefer, Hyman M. Scott, Richard Novak, Hong Van Tieu, Georgia D. Tomaras, James G. Kublin, M. Juliana McElrath, Lawrence Corey, Ian Frank, Artur Kalichman, Paul Edlefsen, Mary Enama, John Hural, Renee Holt, Debora Dunbar, Dave Crawford, Ian Maki, Jan Johannessen, Scharla Estep, Yevgeny Grigoriev, Tamra Madenwald, Marianne Hansen, Drienna Holman, Ramey Fair, Genevieve Meyer, Anya Luke-Kilolam Polytopic fractional delivery of an HIV vaccine alters cellular responses and results in increased epitope breadth in a phase 1 randomized trial. , eBioMedicine, 100: 2024


Reeves DB, Mayer BT, deCamp AC, Huang Y, Zhang B, Carpp LN, Magaret CA, Juraska M, Gilbert PB, Montefiori DC, Bar KJ, Cardozo-Ojeda EF, Schiffer JT, Rossenkhan R, Edlefsen P, Morris L, Mkhize NN, Williamson C, Mullins JI, Seaton KE, Tomaras GD, Andrew P, Mgodi N, Ledgerwood JE, Cohen MS, Corey L, Naidoo L, Orrell C, Goepfert PA, Casapia M, Sobieszczyk ME, Karuna ST, Edupuganti S. High monoclonal neutralization titers reduced breakthrough HIV-1 viral loads in the Antibody Mediated Prevention trials. , Nat Commun, 14(1): 2023,8299


Docken SS, McCormick K, Pampena MB, Samer S, Lindemuth E, Pinkevych M, Viox EG, Wu Y, Schlub TE, Cromer D, Keele BF, Paiardini M, Betts MR, Bar KJ, Davenport MP. Preferential selection of viral escape mutants by CD8+ T cell 'sieving' of SIV reactivation from latency. , PLoS Pathog, 19(11): 2023,e1011755


Tieu HV, Karuna S, Huang Y, Sobieszczyk ME, Zheng H, Tomaras GD, Montefiori DC, Shen M, DeRosa S, Cohen K, Isaacs MB, Regenold S, Heptinstall J, Seaton KE, Sawant S, Furch B, Pensiero M, Corey L, Bar KJ; HVTN 122 Study Team Safety and immunogenicity of a recombinant oligomeric gp145 subtype C Env protein (gp145 C.6980) HIV vaccine candidate in healthy, HIV-1-uninfected adult participants in the US. , Vaccine, 41(42): 2023,6309-6317


Podgorski RM, Robinson JA, Smith MD, Mallick S, Zhao H, Veazey RS, Kolson DL, Bar KJ, Burdo TH Transmitted/founder SHIV.D replicates in the brain, causes neuropathogenesis, and persists on combination antiretroviral therapy in rhesus macaques , Retrovirology, 20(1): 2023,13