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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:

  • Bone Infection (Osteomyelitis)
  • C. Difficile (Clostridium Difficile Diarrhea)
  • Fever
  • Herpes Simplex Virus (HSV)
  • HIV and AIDS
  • HIV Co-Infection
  • Infections
  • Sexually Transmitted Diseases (STD)

Description of Clinical Expertise

HIV care, general infectious disease care

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)
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • 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
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Vetrans Choice Program (6/2018 Not Active)

Education and Training

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

Memberships

AIDS Clinical Trial Group, National American College of Physicians, 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:

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 Journal of Clinical Investigation : 2018.

Fan Li, Liying Ma, Yi Feng, Yuhua Ruan, Jing Hu, Hongsuo Song, Pengtao Liu, Jun Ma, Baolin Rui, Kate Kerpen, Benjamin Scheinfeld, Tuhina Srivastava, David Metzger, Hui Li, Katharine J. Bar, Yiming Shao: 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.

Jiao Y, Zhang X, Wang C, Li L, Liu J, Bar KJ, Wei H, Hu Y, Huang P, Zeng Z, Jiang S, Du J, Shao Y, Metzger D, Li S, Ma L: Hepatitis C Virus Subtype and Evolution Characteristic Among Drug Users, Men Who Have Sex With Men, and the General Population in Beijing, China Medicine 95 (6): e2688,2016.

Lee FH, Mason R, Welles H, Learn GH, Keele BF, Roederer M, Bar KJ: Breakthrough virus neutralization resistance as a correlate of protection in a nonhuman primate heterologous SIV vaccine challenge study J Virol 89 (24): 12388-400,2015.

Sterret S, Edlefsen PT, Learn GH, Haynes BF, Hahn BH, Shaw GM and Bar KJ: Low multiplicity of HIV-1 infection and no vaccine enhancement in VAX003 injection drug users Open Forum Infect Dis 1 (2): ofu056,2014.

Li H, Blair L, Chen Y, Learn G, Pfafferott K, John M, Bhattacharya T, Hahn BH, Mallal S, Shaw GM, Bar KJ: Molecular mechanisms of HIV-1 prophylaxis failure revealed by single genome sequencing J Inf Dis 208 (10): 1598-1603,2013.

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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