Pharmacy Director, Johns Hopkins Hospital Pediatric Antimicrobial Stewardship Program

Assistant Professor, Department of Pediatrics, Division of Infectious Diseases

Program Director, PGY-2 Infectious Diseases Pharmacy Residency

Education and Training
Professional Memberships
Clinical and Research Interests
Selected Publications
Contact Information

Education and Training

Pharm.D., Rutgers, The State University of New Jersey Ernest Mario School of Pharmacy Piscataway, NJ (2007)
Pharmacy Practice Residency, The Johns Hopkins Hospital, Baltimore, MD (2008)
Infectious Diseases Specialty Residency, The Johns Hopkins Hospital, Baltimore, MD (2009)

Professional Memberships

Society of Infectious Disease Pharmacists
American Society of Health-System Pharmacists

Clinical and Research Interests

Dr. Hsu’s research interests include investigating the use of antimicrobials in the pediatric population, pediatric/adolescent HIV, and transplant infectious diseases.

Selected Publications

1. Hsu AJ, Simner PJ, Bergman Y, Mathers AJ, Tamma PD. Successful Treatment of Persistent Stenotrophomonas maltophilia bacteremia with Cefiderocol in an Infant. Open Forum Infect Dis. 2023 Mar 29;10(4):ofad174. doi: 10.1093/ofid/ofad174. eCollection 2023 Apr.
2. Hsu AJ, Lee CKK, McAteer J, Zhang SX, and Tamma PD. Boosting of Voriconazole Levels with Omeprazole, a CYP450 2C19 inhibitor. Pediatr Infect Dis J 2023 Mar 3. doi: 10.1097/INF.0000000000003898. Online ahead of print.
3. Hsu AJ, Tamma PD, Fisher BT. Challenges in the Treatment of Invasive Aspergillosis in Immunocompromised Children. Antimicrob Agents Chemother. 2022 Jul 19;66(7):e0215621. doi: 10.1128/aac.02156-21. Epub 2022 Jun 29.
4. Hsu AJ, Tamma PD, Zhang SX. Challenges with Utilizing the 1,3-Beta-d-Glucan and Galactomannan Assays To Diagnose Invasive Mold Infections in Immunocompromised Children. J Clin Microbiol. 2021 Aug 18;59(9):e0327620. doi: 10.1128/JCM.03276-20. Epub 2021 Aug 18.
5. Same RG, Hsu AJ, Cosgrove SE, Klein EY, Amoah J, Hersh AL, Kronman MP, Tamma PD. Antibiotic-Associated Adverse Events in Hospitalized Children. J Pediatric Infect Dis Soc. 2021 May 28;10(5):622-628. doi: 10.1093/jpids/piaa173.
6. Hsu AJ, Tamma PD. Impact of an Antibiotic Stewardship Program on the Incidence of Vancomycin-Associated Acute Kidney Injury in Hospitalized Children. J Pediatr Pharmacol Ther. 2019 Sep-Oct;24(5):416-420. doi: 10.5863/1551-6776-24.5.416.
7. Same RG, Hsu AJ, Tamma PD. Optimizing the Management of Uncomplicated Gram-Negative Bloodstream Infections in Children: Translating Evidence From Adults Into Pediatric Practice. J Pediatric Infect Dis Soc. 2019 Nov 6;8(5):485-488. doi: 10.1093/jpids/piz051.
8. Tamma PD, Hsu AJ. Defining the Role of Novel β-Lactam Agents That Target Carbapenem-Resistant Gram-Negative Organisms. J Pediatric Infect Dis Soc. 2019 Jul 1;8(3):251-260. doi: 10.1093/jpids/piz002.
9. Hsu AJ, Hamdy RF, Huang Y, Olson JA, Ghobrial S, Gerber JS, Hersh AL, Tamma PD. Association Between Vancomycin Trough Concentrations and Duration of Methicillin-Resistant Staphylococcus aureus Bacteremia in Children. J Pediatric Infect Dis Soc. 2018 Dec 3;7(4):338-341. doi: 10.1093/jpids/pix068.
10. Hamdy RF, Hsu AJ, Stockmann C, Olson JA, Bryan M, Hersh AL, Tamma PD, Gerber JS. Epidemiology of Methicillin-Resistant Staphylococcus aureus Bacteremia in Children. Pediatrics. 2017 Jun;139(6):e20170183. doi: 10.1542/peds.2017-0183. Epub 2017 May 5.

Contact Information

1800 Orleans Street, Bloomberg 7234
Baltimore, MD 21287
Email: [email protected]