Gayani Tillekeratne

Gayani Tillekeratne
Duke University Medical Center | DUMC

About

55
Publications
5,510
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
461
Citations
Citations since 2016
47 Research Items
441 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120

Publications

Publications (55)
Article
Full-text available
Background: Mass drug administration (MDA) is a strategy to improve health at the population level through widespread delivery of medicine in a community. We surveyed the literature to summarize the benefits and potential risks associated with MDA of antibacterials, focusing predominantly on azithromycin as it has the greatest evidence base. Main...
Article
Full-text available
Background The Southern Province of Sri Lanka is endemic with dengue, with frequent outbreaks and occurrence of severe disease. However, the economic burden of dengue is poorly quantified. Therefore, we conducted a cost analysis to assess the direct and indirect costs associated with hospitalized patients with dengue to households and to the public...
Article
Full-text available
Background To develop effective antimicrobial stewardship programs (ASPs) for low- and middle-income countries (LMICs), it is important to identify key targets for improving antimicrobial use. We sought to systematically describe the prevalence and patterns of antimicrobial use in three LMIC hospitals. Methods Consecutive patients admitted to the...
Article
Full-text available
Background Healthcare systems in dengue-endemic countries are often overburdened due to the high number of patients hospitalized according to dengue management guidelines. We systematically evaluated clinical outcomes in a large cohort of patients hospitalized with acute dengue to support triaging of patients to ambulatory versus inpatient manageme...
Article
Full-text available
Viruses cause a wide spectrum of clinical disease, the majority being acute respiratory infections (ARI). In most cases, ARI symptoms are similar for different viruses although severity can be variable. The objective of this study was to understand the shared and unique elements of the host transcriptional response to different viral pathogens. We...
Article
Antibiotic resistance is an emerging global public health threat. One of the main drivers of this threat is the inappropriate use of antibiotics. In Sri Lanka, antibiotic consumption is increasing, but little is known locally about how patients perceive antibiotics. We conducted a qualitative study to gain a better understanding of the knowledge, p...
Article
Full-text available
Background The timing of and risk factors for intestinal colonization with multidrug-resistant Enterobacteriaceae (MDRE) are still poorly understood in areas with high MDRE carriage. We determined the prevalence, timing, and risk factors associated with MDRE intestinal colonization among infants in southern Sri Lanka. Methods Women and their newbo...
Article
Full-text available
Background Antimicrobial resistance has been named as one of the top ten threats to public health in the world. Hospital-based antimicrobial stewardship programs (ASPs) can help reduce antimicrobial resistance. The purpose of this study was to determine perceived barriers to the development and implementation of ASPs in tertiary care centers in thr...
Article
Full-text available
Background Inappropriate antibiotic use is linked to the spread of antimicrobial resistance worldwide, but there are limited systemic data on antibiotic utilization in low- and middle-income countries. The purpose of this study was to evaluate the prevalence and patterns of antibiotic prescription in an ambulatory care setting in Sri Lanka. Method...
Article
Full-text available
Background Antimicrobial resistance has been named as one of the top ten threats to health in the world. The World Health Organization has endorsed the implementation of hosptial-based antimicrobial stewardship programs (ASPs) to reduce antimicrobial resistance. We conducted a qualitative study to determine perceived barriers to the development and...
Article
Full-text available
Background Antimicrobial stewardship programs (ASPs) are being developed internationally to mitigate the misuse of antimicrobials. An understanding of current practices and prescribing patterns is necessary to determine targets to develop context-specific ASPs in low- and middle-income country (LMIC) hospitals. Methods We conducted a prospective s...
Poster
Full-text available
Background: Lower respiratory tract infection (LRTI) is the most common infectious cause of death worldwide. The most common bacterial agent for LRTI is Streptococcus pneumoniae. The conjugate pneumococcal vaccine protects against S. pneumoniae but is not available through the public healthcare sector of Sri Lanka. Data regarding LRTI burden d...
Conference Paper
Full-text available
Lower respiratory tract infection (LRTI) is the most common infectious cause of death worldwide. The most common bacterial agent for LRTI is Streptococcus pneumoniae. The conjugate pneumococcal vaccine protects against S. pneumoniae but is not available through the public healthcare sector of Sri Lanka. Data regarding LRTI burden due to S. pneumoni...
Article
Full-text available
Abstract Objectives: To determine aetiology of illness among children and adults presenting during outbreak of severe respiratory illness in Southern Province, Sri Lanka, in 2018. Design: Prospective, cross-sectional study. Setting: 1600-bed, public, tertiary care hospital in Southern Province, Sri Lanka. Participants: 410 consecutive patients,...
Article
This cross-sectional study aimed to assess HIV-related knowledge and attitudes of PHMs, the frontline community health workers in Sri Lanka. Two-hundred and ninety-one PHMs were recruited. PHMs’ knowledge level was good (79.9% of answers were correct) but could be improved. Those more knowledgeable about HIV and with higher education demonstrated a...
Article
Improved empiric antibiotic prescribing for acute cystitis with use of local urinary antibiogram and clinical decision support system - Christopher J. Shoff, Mary L. Townsend, L. Gayani Tillekeratne, Ryan D. Schulteis, Michael E. Yarrington, Nicholas A. Turner, Christopher W. Woods, Christopher J. Hostler
Article
Full-text available
Background Pathogen-based diagnostics for acute respiratory infection (ARI) have limited ability to detect etiology of illness. We previously showed that peripheral blood-based host gene expression classifiers accurately identify bacterial and viral ARI in cohorts of European and African descent. We determined classifier performance in a South Asia...
Article
Full-text available
Background: Dengue is a major cause of acute febrile illness in Sri Lanka. Dengue has historically been considered an urban disease. In 2012-2013, we documented that acute dengue was surprisingly associated with self-reported rural residence in the Southern Province of Sri Lanka. Methods: Patients admitted with an acute febrile illness were enro...
Conference Paper
Full-text available
Background Antimicrobial stewardship programs (ASPs) have been shown to improve the appropriate use of antimicrobials, especially in high-income countries. However, ASPs are relatively less well implemented in low-or-middle income countries. To improve the effectiveness of ASPs in these settings, it is important to determine the core actions and ta...
Article
Full-text available
Background Skin and soft-tissue infections (SSTI) are a common reason for antimicrobial use in the outpatient and inpatient settings. Inappropriate antimicrobial use for SSTI is common. We determined the prevalence of SSTI and associated inappropriate antimicrobial use among inpatients in Sri Lanka. Methods A point-prevalence study of antimicrobia...
Article
Full-text available
Background Antibiotic resistance is an emerging global public health threat with inappropriate use of antibiotics as one of the major drivers. In Sri Lanka, antibiotic consumption is increasing, while little is known about how patients perceive antibiotics. We conducted a qualitative study to better understand patients’ knowledge, perceptions, and...
Article
Full-text available
Background The global emergence of antimicrobial resistance poses a major public health threat. However, there are little data regarding antimicrobial use from many low- or middle-income countries. In this study, we determined the prevalence and patterns of antibiotic prescription among outpatients at a tertiary healthcare facility in Sri Lanka. M...
Article
Full-text available
BACKGROUND: Influenza virus, respiratory syncytial virus, parainfluenza virus, and metapneumovirus are the most common viruses associated with acute lower respiratory infections in young children (<5 years) and older people (≥65 years). A global report of the monthly activity of these viruses is needed to inform public health strategies and program...
Article
Full-text available
Background Acute respiratory infections are a common reason for antibiotic overuse. We previously showed that providing Sri Lankan clinicians with positive rapid influenza test results was associated with a reduction in antibiotic prescriptions. The economic impact of influenza diagnostic strategies is unknown. Methods We estimated the incremental...
Article
The contribution of respiratory viruses to acute febrile illness (AFI) burden is poorly characterized. We describe the prevalence, seasonality, and clinical features of respiratory viral infection among AFI admissions in Sri Lanka. We enrolled AFI patients ≥ 1 year of age admitted to a tertiary care hospital in southern Sri Lanka, June 2012-October...
Article
Full-text available
A point-prevalence study of antimicrobial use among inpatients at 5 public hospitals in Sri Lanka revealed that 54.6% were receiving antimicrobials: 43.1% in medical wards, 68.0% in surgical wards, and 97.6% in intensive care wards. Amoxicillin-clavulanate was most commonly used for major indications. Among patients receiving antimicrobials, 31.0%...
Article
Full-text available
Background Acute febrile illness is a frequent cause of hospitalization in the tropics and often presents with respiratory symptoms, even when caused by nonrespiratory pathogens. Previously, host-based gene expression signatures accurately identified acute respiratory infections as being bacterial or viral in a U.S. cohort. We determined signature...
Article
Full-text available
p> Background: Rubber production is an important component of the Sri Lankan economy. Prior reports have raised concerns about poverty and poor physical and social living conditions among rubber tappers. Objective: To assess rubber tappers’ psychological health and distress. Methods and Material: A cross-sectional survey was conducted among 300 r...
Article
Full-text available
Background Dengue is a leading cause of fever and mimics other acute febrile illnesses (AFI). In 2009, the World Health Organization (WHO) revised criteria for clinical diagnosis of dengue. Methodology/Principal findings The new WHO 2009 classification of dengue divides suspected cases into three categories: dengue without warning signs, dengue wi...
Article
Full-text available
A cluster randomized controlled trial was conducted to change diet, physical activity, smoking and alcohol consumption among participants through funeral societies in the Western Province .Twenty one administrative subdivisions in the Ragama area were randomized into intervention and control groups. Ten administrative subdivisions in the North West...
Conference Paper
Full-text available
Molecular and antibiotic profile confirmed that more than half of patients were colonised with CA-MRSA on admission .......
Article
Full-text available
In tropical and subtropical settings, the epidemiology of viral acute respiratory tract infections varies widely between countries. We determined the etiology, seasonality, and clinical presentation of viral acute respiratory tract infections among outpatients in southern Sri Lanka. From March 2013 to January 2015, we enrolled outpatients presentin...
Article
Full-text available
The four serotypes of dengue virus (DENV-1, -2, -3, and -4) have had a rapidly expanding geographic range and are now endemic in over 100 tropical and subtropical countries. Sri Lanka has experienced periodic dengue outbreaks since the 1960s, but since 1989 epidemics have become progressively larger and associated with more severe disease. The domi...
Article
Full-text available
Background Acute respiratory tract infections (ARTIs) are a common reason for antibiotic overuse worldwide. We previously showed that over 80% of outpatients presenting to a tertiary care hospital in Sri Lanka with influenza-like illness received antibiotic prescriptions, although almost half were later confirmed to have influenza. The purpose of t...
Article
Full-text available
Background Dengue is a frequent cause of acute febrile illness with an expanding global distribution. Since the 1960s, dengue in Sri Lanka has been documented primarily along the heavily urbanized western coast with periodic shifting of serotypes. Outbreaks from 2005–2008 were attributed to a new clade of DENV-3 and more recently to a newly introdu...
Article
Full-text available
Leprosy is caused by the Mycobacterium leprae bacillus. Pockets of high endemicity remain in a number of countries including Sri Lanka, in spite of the fact that elimination has been achieved at the national level. In 2012, in a village in the Puttlam district, dermatologists reported an increase in individuals with leprosy. This village had been e...
Article
Full-text available
Background Extended-spectrum ß-lactamase-producing Enterobacteriaceae (ESBL-PE) are increasingly reported as pathogens in urinary tract infections (UTIs). However, in Sri Lanka, the clinical and molecular epidemiology of ESBL-PE implicated in UTIs has not been well described. Materials and Methods We conducted prospective, laboratory-based surveil...
Article
Full-text available
Acute respiratory tract infections (ARTIs) are a common reason for unnecessary antibiotic prescriptions worldwide. Our objective was to determine if providing access to rapid influenza test results could reduce antibiotic prescriptions for ARTIs in a resource-limited setting. We conducted a prospective, pre-post study from March 2013 to October 201...
Article
Full-text available
Influenza accounts for a large burden of acute respiratory tract infections in high-income countries; data from lower-income settings are limited due to lack of confirmatory testing. Consecutive outpatients presenting to the largest tertiary care hospital in southern Sri Lanka were surveyed for influenza-like illness (ILI), defined as acute onset o...
Conference Paper
Background: Acute respiratory illnesses, including influenza, account for a large proportion of ambulatory care visits worldwide. In the developed world, these encounters commonly result in unwarranted antibiotic prescriptions; data from more resource-limited settings are lacking. Methods: Consecutive patients presenting to the Outpatient Dep...
Article
Background Health care-associated infections such as catheter-associated urinary tract infections (CAUTIs) are prevalent in resource-limited settings. This study was carried out to determine whether a multifaceted intervention targeting health care personnel would reduce CAUTI rates in a public hospital located in a resource-limited setting. Metho...
Article
The World Health Organization (WHO) has recommended the use of clinical staging alone and with total lymphocyte count to identify HIV infected children in need of antiretroviral therapy (ART) in resource-limited settings, when CD4 cell count is not available. We prospectively enrolled children obtaining care for HIV infection at the Kilimanjaro Chr...
Article
Community home-based care (CHBC) plays an integral role in the care of HIV-infected patients living in resource-limited regions. A longitudinal cohort study has recently been conducted, in the Kilimanjaro Region of northern Tanzania, in order to identify the components of an effective CHBC programme. Structured questionnaires were administered to c...
Article
In resource-limited settings lacking laboratory testing, clinical staging criteria may not identify all human immunodeficiency virus (HIV)-infected children who could benefit from antiretroviral therapy (ART). A retrospective analysis was conducted to identify clinical markers in children that could predict rapid progression and need for earlier AR...

Network

Cited By

Projects

Projects (2)
Project
To identify the detailed data on the proportion of colonization of the bacteria, it's spreading, potential risk factors to cause the diseases, resistance to antibiotics, relevant genotypic information and the influence of natural bacteria over the MRSA which are associated with hospitals, communities and other environments (animal and animal products) in Southern Province of Sri Lanka under a One-Health approach.