My research interests are:
-The microbiome of SOT recipients colonized or infected with CRE and other Gram-negative pathogens
-Metagenomics approaches for the diagnosis of infections in immunocompromised hosts
-Novel agents for the treatment of Carbapenem-resistant Enterobacteriaceae (CRE) and MDR Pseudomonas infections
-HIV-to-HIV organ transplantation
-Phage therapy, particularly in transplant recipients
-Fungal infections in patients with hematological malignancies, particularly CAR-T-cell therapy recipients
I am an attending physician on the inpatient and outpatient transplant infectious diseases services. I see organ transplant recipients/candidates and patients with hematological malignancies (hematopoietic cell transplant, CAR-T-cell therapy, leukemia, lymphoma, and myeloma).
I am the program director for the transplant ID fellowship and one of the associate program directors for the ID fellowship. I direct the weekly ID Grand Rounds and give the annual "Introduction to SOT Immunology and Infections" lecture to the ID fellows. I am enthusiastic about working with trainees, both on the clinical transplant ID services and on research projects in the field of transplant ID.
- BS, Biology, American University of Beirut, 2007
- MD, American University of Beirut, 2011
- Residency, Internal Medicine, Case Western Reserve University/University Hospitals Case Medical Center/Louis Stokes VA Medical Center, 2014
- Fellowship, Infectious Diseases, University of Pittsburgh Medical Center, 2016
- Fellowship, Transplant Infectious Diseases, University of Pittsburgh Medical Center, 2017
Education & Training
Haidar G, Boechkh M, Singh N. Cytomegalovirus Infection in Solid Organ and Hematopoietic Cell Transplantation: State-of-the Evidence. Journal of Infectious Diseases. 2020; 221(S1): S23-31.
Haidar G, Dorritie K, Farah R, Bogdanovich T, Nguyen MH, Samanta P. Invasive Mold Infections After Chimeric Antigen Receptor–Modified T-cell Therapy: A Case Series, Review of the Literature, and Implications for Prophylaxis. Clinical Infectious Diseases. 2019; 71(3): 672-676.
Haidar G, Philips NJ, Shields RK, Snyder D, Cheng S, Potoski BA, Doi Y, Hao B, Press EG, Cooper VS, Clancy CJ, Nguyen MH. Ceftolozane-Tazobactam for the Treatment of Multidrug-Resistant Pseudomonas aeruginosa Infections: Clinical Effectiveness and Evolution of Resistance. Clinical Infectious Diseases. 2017; 65(1): 110-120.
Haidar G, Clancy CJ, Shields RK, Hao B, Cheng S, Nguyen MH. Mutations in blaKPC-3 That Confer Ceftazidime-Avibactam Resistance Encode Novel KPC-3 Variants That Function as Extended-Spectrum ß-Lactamases. Antimicrob Agents Chemother. Antimicrobial Agents and Chemotherapy. 2017; 61(5): e02534-16.
- Scholar, National Institute of Allergy and Infectious Diseases/Infectious Diseases Society of America (NIAID/IDSA) ID Research Careers Meeting, Bethesda, MD, 2016
- First Place Winner, Department of Medicine Annual Fellows’ Teaching Competition, Univeristy of Pittsburgh Medical Center, 2016
- American Society of Microbiology - Infectious Disease Travel Award, 2016
- Gerald P. Bodey Immunocompromised Host Scholarship at the University of Texas MD Anderson Cancer Center, Houston, TX, 2017
- ID Week 2017 Travel Grant, San Diego, CA, 2017
- Early Career Member at Large (elected), American Society of Transplantation Infectious Diseases Community of Practice, 2019-2020
Title: The Gut Microbiome in Carbapenem-Resistant Enterobacteriaceae Colonization, Persistence, Infection, and Tolerance
Role: Principal Investigator
Funding Agency: National Institute of Allergy & Infectious Diseases
Grant Number: K23 AI154546
Start Year: 2021
End Year: 2026
