What I Do

Director of Public Health Programs


  • Ph.D., Texas A&M University, College of Medicine, Bryan, TX
  • MPH, University of Texas, School of Public Health, Houston, TX
  • B.S., Texas Christian University, Fort Worth, TX


Don Galbadage’s teaching focuses on the disciplines of public health, medical sciences and applied health sciences. His areas of expertises are in epidemiology, biostatistics, disease control, preventative medicine, human physiology, microbiology, molecular biology and wellness promotion. Galbadage’s goal in teaching is that at the end of a course, students will be able to accomplish five broad objectives: 1) Define important concepts pertinent to the discipline, 2) identify the creative work of God in science and health, 3) solve theoretical problem using definitions they learned, 4) critique the strengths and weaknesses of various methodologies used and 5) combine these methodologies to address any research hypothesis.

To accomplish his teaching goals and enhance students’ learning experience, Galbadage uses several different strategies. His teaching strategies promote a student-centered learning environment based on four learning principles: core-competencies, personalization, student-ownership and versatility. Galbadage encourages active student learning by giving his students ownership of their learning experience. This increases student engagement and helps foster a successful education. Education attained through meaningful learning is an invaluable foundation needed for students to build better lives and better careers. His mission as a teacher is to guide students through the process of meaningful learning and empower them to be independent lifelong learners.

The goal of Galbadage’s research is to help reduce the global burden of multidrug-resistant infections through innovative techniques, evidence-based patient education on antibiotic stewardship, and exploring infectious disease-specific health determinants. His research aims to further our current understanding of antibiotic resistance, develop effective alternative antimicrobials, and be good stewards of the currently available antibiotics through patient-centered education.

Outstanding professors are not only effective teachers and researchers but also excellent mentors. Inspired by many exceptional professors Galbadage has benefited from, he makes himself available as a mentor for any students who want to discuss their research, career plans, educational goals, or professional applications. His goal in mentoring students is to invest in their lives, be an example of Christ-centered living, and see them succeed in life.


  • 2020 to Present: American Public Health Association (APHA)


  • Sharan, R., Galbadage, T., Saenkham, P., Moule, M., Sule, P., Kong, Y., & Cirillo, J. D. (2019). Optical In Vivo Imaging in Tuberculosis Research. In Tuberculosis Host-Pathogen Interactions (pp. 155-200). Springer, Cham.
  • Park, J. Y., Galbadage, T., Lee H., Wang, D. C., Peterson, B. M. (2023). Mental health, substance use, and the importance of religion during the COVID-19 pandemic. Mental Health, Religion & Culture doi: 10.1080/13674676.2023.2202382
  • Holt A., Cahill J., Ramsey J., Martin C., O’Leary C., Moreland R., Maddox L.T., Galbadage T., Sharan R., Sule R., Cirillo J.D., Young R. (2021). Phage-Encoded Cationic Antimicrobial Peptide Required for Lysis. Journal of Bacteriology JB. 00214-21. doi: 10.1128/JB.00214-21
  • Galbadage, T., Peterson, B. M., Wang, D. C., Wang, J. S., & Gunasekera, R. S. (2020).
  • Biopsychosocial and Spiritual Implications of Patients with COVID-19 Dying in Isolation. Frontiers in Psychology 11:588623. doi: 10.3389/fpsyg.2020.588623
  • Galbadage, T., Peterson, B. M., Wang, J. S., Jayasekara, A., Ramirez, D. A., Awada, J., Walsh, J. P., & Gunasekera, R. S. (2020). Molecular Mechanisms Lead to Sex-Specific COVID-19 Prognosis and Targeted Therapies. Frontiers in Medicine (Lausanne) 7:589060. doi: 10.3389/fmed.2020.589060
  • Galbadage, T., Peterson, B. M., Awada, J., Buck, A. S., Ramirez, D. A., Wilson, J., & Gunasekera, R. S. (2020). Systematic Review and Meta-Analysis of Sex-Specific COVID-19 Clinical Outcomes. Frontiers in Medicine (Lausanne), 7, 348. doi: 10.3389/fmed.2020.00348
  • Galbadage, T., Peterson, B. M. & Gunasekera, R. S. (2020). Does COVID-19 Spread through Droplets Alone? Frontiers in Public Health, 8, 163. doi: 10.3389/fpubh.2020.00163
  • Gunasekera, R. S., Galbadage, T., Ayala Orozco, C., Liu, D., García-López, V., Troutman, B. E., Tour, J. J., Pal, R., Krishnan, S., Cirillo, J. D. & Tour, J. M. (2020). Molecular Nanomachines Can Destroy Tissue or Kill Multicellular Eukaryotes. ACS Applied Materials & Interfaces, 12, 13657-13670. doi: 10.1021/acsami.9b22595
  • Galbadage, T., Liu, D., Alemany, L. B., Pal, R., Tour, J. M., Gunasekera, R. S., & Cirillo, J. D. (2019). Molecular Nanomachines Disrupt Bacterial Cell Wall Increasing Sensitivity of Extensively Drug-Resistant Klebsiella pneumoniae to Meropenem. ACS nano, 13, 14377-14387. doi: 10.1021/acsnano.9b07836


  • 3rd Annual Texas A&M Postdoctoral Association (PDA) Research Symposium, College Station, TX. Presented on “Efficacy of peptides and peptoids against pan-resistant K. pneumoniae.” September 2018.
  • Texas Genetic Society (TGS) Annual Meeting, College Station, TX. Presented on “In vivo action of molecular nanomachines increases mortality in eukaryotes and destroys prokaryotes.” March 2018.

Research Interests

  • Antibiotic Resistance
  • Antibiotic Stewardship
  • Nanomedicine
  • Multidrug Resistance
  • COVID-19 Transmission


  • BIOS 236 Principles of Human Anatomy and Physiology
  • BIOS 282 Microbiology
  • KNES 107 Lifetime Wellness 
  • KNES 200 Principles of Public Health Practice
  • KNES 355 Health Care systems
  • KNES 475 Public Health Capstone Practicum
  • PHLT 505 Principles of Epidemiology
  • PHLT 610 Public Health Integrative Experience
  • PHLT 615 Graduate Project
  • PHLT 620 Public Health Practicum
  • PHLT 640 Global Communicable Disease Control
  • PHLT 650 Current Issues in Epidemiology
  • PHLT 652 Molecular Epidemiology
  • PHLT 654 Epidemiology of Chronic Disease

Areas of Expertise for Media Interviews

  • Aging
  • Bioethics
  • Biological Sciences
  • Healing
  • Health
  • Medicine
  • Philosophy of Science
  • Science
  • Public Health
  • Epidemiology
  • Biostatistics
  • Microbiology
  • Molecular Biology
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