Scholars@Duke
Gayani Tillekeratne

Gayani Tillekeratne

Associate Professor of Medicine
Medicine, Infectious Diseases
gayani.tillekeratne@duke.edu
310 Trent Drive #213, Durham, NC 27705

Overview

Global health
Antimicrobial resistance/ stewardship
Acute respiratory tract infections 
Emerging infections/ dengue

Current Duke Appointments & Affiliations

Associate Professor of Medicine · 2023 - Present Medicine, Infectious Diseases, Medicine
Associate Research Professor of Global Health · 2023 - Present Duke Global Health Institute, University Institutes and Centers

Recent News Items

Published April 15, 2022
Inside Sri Lanka's Deepening Economic Crisis
Published December 10, 2018
A Century Later: Are We Better Prepared For the Next Influenza Pandemic?
Published April 20, 2016
Technology Enables DGHI Professors To Teach Across the World

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Recent Scholarly Works

TREATment of Lower Respiratory Tract Infection in Selected Hospitals in Southern Sri Lanka (TREAT-SL): study protocol for a stepped-wedge, cluster-randomized clinical trial.

Journal article Trials · March 18, 2026 BACKGROUND: Lower respiratory tract infection (LRTI) is a leading cause of hospitalization and antibacterial use globally. In low- and middle-income countries (LMICs), limited diagnostic resources contribute to inappropriate antibacterial use for LRTI. The ... Full text Link to item Cite

Perspectives from Sri Lankan physicians on current approaches to diagnosing and managing lower respiratory tract infections.

Journal article BMC Res Notes · February 21, 2026 OBJECTIVES: Lower respiratory tract infections (LRTIs) pose significant diagnostic challenges, especially in low- and middle-income countries (LMICs), where access to diagnostics and clinical tools is limited. This qualitative study explored Sri Lankan phy ... Full text Link to item Cite
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Recent Grants

Combined pathogen and host-based diagnostic to identify etiology of lower respiratory tract infection

ResearchPrincipal Investigator · Awarded by National Institutes of Health · 2025 - 2028

Host-Pathogen Dynamics in Leptospirosis - P4

ResearchInvestigator · Awarded by University of California - Los Angeles · 2023 - 2028

A randomized controlled trial of a novel, evidence-based algorithm for managing lower respiratory tract infection in a resource-limited setting

ResearchPrincipal Investigator · Awarded by National Institute of Allergy and Infectious Diseases · 2022 - 2027

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Education

Duke University · 2014 M.Sc.
Duke University, School of Medicine · 2007 M.D.