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Katharine J. Bar, MD

Katharine J. Bar, MD Physician

Director, Virology Core, Penn Center for AIDS Research Assistant Professor of Medicine

Dr. Bar is employed by Penn Medicine.

Patient Satisfaction Ratings

Patient Rating Breakdown

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

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.

Overall Ratings

Clinical Specialties

Specialty:

  • Infectious Diseases
  • Travel Medicine

Programs & Centers:

Board Certification:

  • Infectious Disease, 2009
  • Internal Medicine, 2005

Clinical Expertise:

  • Aspergillosis
  • Bone Infection (Osteomyelitis)
  • C. Difficile (Clostridium Difficile Diarrhea)
  • Cellulitis
  • Flu (Influenza)
  • Flu Shot Vaccination
  • Genital Warts (Condyloma Acuminatum)
  • Hepatitis
  • Hepatitis B
  • Hepatitis C
  • Herpes Simplex Virus (HSV)
  • HIV and AIDS
  • Lyme Disease
  • Malaria
  • Meningitis
  • Mycobacterium
  • Pneumonia
  • Sexually Transmitted Diseases (STD)
  • Shingles
  • Staph Infection
  • Swollen Lymph Nodes
  • Syphilis
  • Travelers' Diarrhea
  • Tuberculosis (TB)
View More

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: University of Iowa College of Medicine
Residency: Virginia Commonwealth University
Fellowship: University of Alabama Hospital

Memberships

AIDS Clinical Trial Group, National American College of Physicians, National Conference on Retroviruses and Opportunistic Infections, International Duke Human Vaccine Institute, Bridging Antibody Fc-mediated Antiviral Functions across Humans and Non-human Primates, National HIV Vaccine Trials Network (HVTN), National Infectious Diseases Society of America (IDSA), National National Institutes of Health, National

Hospital Affiliation

Dr. Bar is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.

Research

Description of Research Expertise:

We study the basic mechanisms of transmission, pathogenesis and persistence in HIV and other chronic viral infections.

Current projects include:

1. The HIV transmission bottleneck and virus phenotype in injection drug users

2. The viral dynamics of rebound viremia upon cART interruption, both in the presence and absence of treatment and curative strategies

3. The neutralization properties of SIV challenge swarms and their transmitted/founder viruses

4. The genetic signatures of Herpes Simplex Virus immune escape from vaccine pressure


Lab Personnel:

Benjamin Scheinfeld, technician
D. Brenda Salantes, graduate student

Selected Publications:

Nelson AN, Goswami R, Dennis M, Tu J, Mangan RJ, Saha PT, Cain DW, Curtis AD, Shen X, Shaw GM, Bar K, Hudgens M, Pollara J, De Paris K, Van Rompay KKA, Permar SR: SHIV.CH505-infected infant and adult rhesus macaques exhibit similar HIV Env-specific antibody kinetics, despite distinct T-follicular helper (Tfh) and germinal center B cell landscapes J Virol : pii: JVI.00168-19,2019.

Zahid MN, Wang S, Learn GH, Abt PL, Blumberg EA, Reese PP, Goldberg DS, Shaw GM, Bar KJ: High multiplicity infection following transplantation of hepatitis C virus-positive organs J Clin Invest 130 : pii: 127203,2019.

Boris Julg, #, Lynda DeeJintanat Ananworanich, Dan H. Barouch, Katharine Bar, Marina Caskey, Donn Colby, Liza Dawson, Krista Dong Karine Dubé, Joseph Eron, John Frater, Rajesh Gandhi, Romas Geleziunas, Phillip Goulder, George Hanna, Richard Jefferys, Rowena Johnston, Daniel Kuritzkes, Jonathan Z. Li, Udom Likhitwonnawut, Jan van Lunzen, Javier Martinez-Picado, Veronica Miller, Luis J. Montaner, Douglas F. Nixon, David Palm, Giuseppe Pantaleo, Holly Peay, Deborah Persaud, Jessica Salzwedel, Karl Salzwedel: Recommendations for Analytical Antiretroviral Treatment Interruptions in HIV Research Trials – Report of a Consensus Meeting The Lancet HIV 6 (4): e259-e268,2019.

McLean RC, Reese PP, Acker M, Atluri P, Bermudez C, Goldberg L, Abt PL, Blumberg EA, Van Deerlin VM, Reddy KR, Bloom RD, Hasz R, Suplee L, Sicilia A, Woodards A, Zahid MN, Bar KJ, Porrett P, Levine M, Hornsby N, Gentile C, Smith J, Goldberg DS: Transplanting hepatitis C virus-infected hearts into uninfected recipients: A single-arm trial Am J Transplant : doi: 10.1111/ajt.15311,2019.

Salantes DB, Zheng Y, Mampe F, Srivastava T, Beg S, Lai J, Li JZ, Tressler RL, Koup RA, Hoxie J, Abdel-Mohsen M, Sherrill-Mix S, McCormick K, Overton ET, Bushman FD, Learn GH, Siliciano RF, Siliciano JM, Tebas P, Bar KJ: HIV-1 latent reservoir size and diversity are stable following brief treatment interruption J Clin Invest 128 (7): 3102-3115,2018.

Li F, Ma L, Feng Y, Ruan Y, Hu J, Song H, Liu P, Ma J, Rui B, Kerpen K, Scheinfeld B, Srivastava T, Metzger D, Li H, Bar KJ, Shao Y: HIV-1 and hepatitis C virus selection bottleneck in Chinese people who inject drugs AIDS 32 (3): 309-320,2018.

Barbian HJ, Jackson-Jewett R, Brown CS, Bibollet-Ruche F, Learn GH, Decker T, Kreider EF, Li Y, Denny TN, Sharp PM, Shaw GM, M.D., Lifson JD, Acosta EP, Saag MS, Bar KJ, Hahn BH: Effective Treatment of SIVcpz-Induced Immunodeficiency in a Captive Western Chimpanzee Retrovirology 14 (1): 35,2017.

Bar KJ, Sneller MC, Harrison LJ, Justement SJ, Overton ET, Petrone ME, Salantes BD, Seamon CA, Scheinfeld B, Kwan RW, Learn GH, Proschan MA, Kreider EF, Bazkova J, Bardsley M, Refsland EW, Messer M, Clarridge KE, Tustin NB, Madden PJ, Oden KS, O'Dell SJ, Jarocki B, Shiakolas AR, Tressler RL, Doria-Rose NA, Bailer RT, Ledgerwood JE, Capparelli EV, Lynch RM, Graham BS, Moir S, Koup RA, Mascola JR, Hoxie JA, Fauci AS, Tebas P, Chun T-W: Effect of HIV Antibody VRC01 on Viral Rebound after Treatment Interruption NEJM 375 (21): 2037-2050,2016.

Lopker MJ, Del Prete GQ, Estes JD, Li H, Reid C, Newman L, Lipkey L, Camus C, Easlick JL, Wang S, Decker JM, Bar KJ, Learn G, Pal R, Weiss DE, Hahn BH, Lifson JD, Shaw GM, Keele BF: Derivation and Characterization of Pathogenic Transmitted/Founder Molecular Clones from Simian Immunodeficiency Virus SIVsmE660 and SIVmac251 following Mucosal Infection J Virol 90 (19): 8435-53,2016.

Salazar-Gonzalez JF, Salazar MG, Tully DC, Ogilvie CB, Learn GH, Allen TM, Heath SL, Goepfert P, Bar KJ: Use of dried blood spots to elucidate full-length transmitted/founder HIV-1 genomes Pathogens and Immunity 1 (1): 129-153,2016.

Academic Contact Info

502 D Johnson Pavilion
3610 Hamilton Walk

Philadelphia, PA 19104-6073
Phone: (215) 573-8497
Patient appointments: 800-789-7366 (PENN)

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