A photo of David Haslam.

David B. Haslam, MD

  • Director, Antimicrobial Stewardship Program
  • Director, Microbial Genomics and Metagenomics Laboratory
  • Professor, UC Department of Pediatrics
I work with my patients and their families as a team and feel that taking care of children is a wonderful privilege and a responsibility.



I was influenced by my father, who was a pediatrician and took great satisfaction in caring for children. As a pediatric infectious disease specialist, I work with my patients and their families as a team and feel that taking care of children is a wonderful privilege and a responsibility.

In my practice, I try to be flexible by coordinating my patients’ appointments with those of other providers when possible. I’m committed to providing continuity and to being accessible between visits.

I’m the director of the Antimicrobial Stewardship Program and the Microbial Genomics and Metagenomics Laboratory. I've received several teaching and research awards, including the Pediatric Infectious Disease Society Young Investigator Award.

The main focus of my research is on the microbiome, which is the community of bacteria, viruses, fungi and other organisms that live on the human body. The goal is to understand how the microbiome influences disease and contributes to health in children. A healthy microbiome helps protect against infection, allergy, gastrointestinal diseases, heart disease, diabetes and diseases of premature infants.

In my free time, I enjoy riding my bike.

MD: University of Calgary, Calgary, Alberta.

Rotating Internship: McGill University, Montreal, Quebec.

Residency: University of Ottawa, Ottawa, Quebec.

Fellowship: Washington University School of Medicine, St. Louis, MO.

Services and Specialties

Infectious Diseases, Autoimmune Liver Disease

Research Areas

Infectious Diseases

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Antibiotic exposure prevents acquisition of beneficial metabolic functions in the preterm infant gut microbiome. Xu, Y; Milburn, O; Beiersdorfer, T; Du, L; Akinbi, H; Haslam, DB. Microbiome. 2022; 10.

Multi-omic characterization of pediatric ARDS via nasal brushings. Williams, JG; Joshi, R; Haslam, D; Yehya, N; Jones, RL; Paranjpe, A; Pujato, M; Roskin, KM; Lahni, PM; Wong, HR; et al. Respiratory Research. 2022; 23.

Single Site Experience of the use of Monoclonal Antibodies for the Treatment of COVID-19 in High-risk Pediatric and Young Adult Patients. Bahakel, H; Murphy, C; Frenck, RW; Grimley, MS; Marsh, RA; Paulsen, GC; Haslam, DB; Phillips, CL; Courter, J; Spearman, P; et al. Pediatric Infectious Disease Journal. 2022; 41:985-988.

Friendly fungi: symbiosis with commensal Candida albicans. Shao, TY; Haslam, DB; Bennett, RJ; Way, SS. Trends in Immunology. 2022; 43:706-717.

Candida albicans oscillating UME6 expression during intestinal colonization primes systemic Th17 protective immunity. Shao, TY; Kakade, P; Witchley, JN; Frazer, C; Murray, KL; Ene, IV; Haslam, DB; Hagan, T; Noble, SM; Bennett, RJ; et al. Cell Reports. 2022; 39.

Aligning Provider Prescribing With Guidelines for Soft Tissue Infections. Kovaleski, C; Courter, JD; Ghulam, E; Hagedorn, PA; Haslam, DB; Kurowski, EM; Rudloff, J; Szczesniak, R; Dexheimer, JW. Pediatric Emergency Care. 2022; 38:e1063-e1068.

Lethal Pediatric Cerebral Vasculitis Triggered by Severe Acute Respiratory Syndrome Coronavirus 2. Poisson, KE; Zygmunt, A; Leino, D; Fuller, CE; Jones, BV; Haslam, D; Staat, MA; Clay, G; Ting, TV; Wesselkamper, K; et al. Pediatric Neurology. 2022; 127:1-5.

A unique gut microbiota signature in pulmonary arterial hypertension: A pilot study. Jose, A; Apewokin, S; Hussein, WE; Ollberding, NJ; Elwing, JM; Haslam, DB. Pulmonary Circulation. 2022; 12.

Future Applications of Metagenomic Next-Generation Sequencing for Infectious Diseases Diagnostics. Haslam, DB. Journal of the Pediatric Infectious Diseases Society. 2021; 10:S112-S117.

Commensal segmented filamentous bacteria-derived retinoic acid primes host defense to intestinal infection. Woo, V; Eshleman, EM; Hashimoto-Hill, S; Whitt, J; Wu, SE; Engleman, L; Rice, T; Karns, R; Qualls, JE; Haslam, DB; et al. Cell Host and Microbe. 2021; 29:1744-1756.e5.

From the Blog

Antibiotics Are Not Always the Answer
Blog Healthy Living

Antibiotics Are Not Always the Answer

By David B. Haslam, MD3/2/2018

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