Department of Medicine

Department of Medicine

 Division of Infectious Diseases

[Return To Index page]
photo Ghady Haidar, MD

Clinical Assistant Professor of Medicine

Associate Program Director for the Infectious Diseases Fellowship Training Program


Phone: 412-648-6601

Office: Falk Medical Bldg, Suite 3A
3601 Fifth Avenue, 7th Floor
Pittsburgh, PA 15213
Phone: 412-648-6601
Fax: 412-648-6399
Education and Training
Bachelor of Science, Biology, American University of Beirut, 2007
Medical Doctor, American University of Beirut, 2011
Internal Medicine Residency, Case Western Reserve University/University Hospitals Case Medical Center/Louis Stokes VA Medical Center, 2014
Fellowship, Infectious Diseases, University of Pittsburgh Medical Center, 2016
Transplant Infectious Diseases Fellowship, University of Pittsburgh Medical Center, 2017
Research Interest
My research has focused on clinical and translational studies related to extensively drug-resistant Gram-negative bacteria. We have shown that resistance to ceftazidime-avibactam in KPC-producing Klebsiella pneumonia emerges via reversion of the KPC-3 beta-lactamase into an ESBL-like enzyme. In addition, we have described AmpC beta-lactamase-mediated resistance towards ceftolozane-tazobactam among MDR Pseudomonas aeruginosa. I am also intersted in clinical research involving SOT recipients and am currently involved in projects sponsored by the American Society of Transplantation ID Community of Practice. I am overseeing HIV-to-HIV organ transplantation at UPMC as part of the multicenter HOPE trial, which aims at determining the safety and efficacy of transplanting an HIV-positive organ into an HIV-positive recipient.
Clinical Interest
My clinical interest is in infections of organ and hematopietic cell transplant recipients, particularly MDR Gram-negative bacteria, mold infections, cryptococcosis, and drug-resistant CMV.
Educational Interest
I am one of the Associate Program Directors for the ID Training Program and give the "Introduction to SOT Immunology and Infections" lecture to the ID fellows. I participate in the "Introduction to Being a Physician" and "Problem-Based-Learning" courses given to first-year medical students. I also oversee the weekly ID Grand Rounds.
For my complete bibliography, Click Here.
Selected Publications:
Ghady Haidar, Nathan J Philips, Ryan K Shields, Daniel Snyder, Shaoji Cheng, Brian A Potoski, Yohei Doi, Binghua Hao, Ellen G Press, Vaughn S Cooper, Cornelius J Clancy, M. Hong Nguyen. Ceftolozane-tazobactam for the treatment of multi-drug resistant Pseudomonas aeruginosa infections: Clinical effectiveness and evolution of resistance. Clin Infect Dis. 2017; 65: 110-120.
Ghady Haidar, Cornelius J Clancy, Ryan K Shields, Binghua Hao, Shaoji Cheng, M. Hong Nguyen. Mutations in blaKPC-3 that confer ceftazidime-avibactam resistance encode novel KPC-3 variants that function as extended-spectrum ß-lactamases. Antimicrob Agents Chemother. 2017; Epub ahead of print.
Ghady Haidar, Nina Singh. The Times, They are a-Changing: HOPE for HIV-to-HIV Organ Transplantation. Transplantation. 2017; Epub ahead of print.
Haidar, G, Alkroud, A, Cheng S, Churilla, TM, Churilla, BM, Shields, RK, Doi, Y, Clancy, CJ, Nguyen, MH. Association between presence of aminoglycoside modifying enzymes and in vitro activity of gentamicin, tobramycin, amikacin and plazomicin against KPC and ESBL-producing Enterobacter spp. Antimicrobial Agents and Chemotherapy. 2016; 60(9): 5208-5214.
Notable Achievements
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
Speaker, ASM Microbe Conference, Boston, MA, 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
Speaker, 2nd Symposium on Infectious Diseases in the Immunocompromised Host, sponsored by the Fred Hutchinson Cancer Research Institute, Seattle, WA, 2017