ArticleWestern Pacific surveillance and response journal : WPSAR
Establishing seasonal and alert influenza thresholds in Cambodia using the WHO method: implications for effective utilization of influenza surveillance in the tropics and subtropics.
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Who cites it
28 citing papers in PubMed.
- Article
- Mapping Sub-National Respiratory Virus Circulation in Cambodia Using Metatranscriptomic Sequencing: A Multi-Center Hospital-Based Surveillance Study.Influenza and other respiratory viruses · 2026Article
- Global region-specific influenza early warning by establishing an epidemic intensity threshold system: a modeling study.Frontiers in public health · 2026Article
- Attitudes and practices of healthcare professionals in a comprehensive tertiary hospital regarding traditional Chinese medicine for the treatment of influenza.Scientific reports · 2025Article
- Application of the moving epidemic method for influenza surveillance in Kunming.Frontiers in public health · 2025Article
- Epidemiologic and Virologic Characteristics of Influenza in Lao PDR, 2016-2023.Influenza and other respiratory viruses · 2024Article
- Identify future epidemic threshold and intensity for influenza-like illness in Iraq by using the moving epidemic method.IJID regions · 2024Article
- Applying the Moving Epidemic Method to Establish the Influenza Epidemic Thresholds and Intensity Levels for Age-Specific Groups in Hubei Province, China.International journal of environmental research and public health · 2022Article
- Comparison of clinical characteristics and outcomes between respiratory syncytial virus and influenza-related pneumonia in China from 2013 to 2019.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2021Article
- Epidemiology of Coronavirus Disease 2019 in Japan: Descriptive Findings and Lessons Learned through Surveillance during the First Three Waves.JMA journal · 2021Article
- Deep learning for differentiating novel coronavirus pneumonia and influenza pneumonia.Annals of translational medicine · 2021Article
- Article
- Nowcasting (Short-Term Forecasting) of Influenza Epidemics in Local Settings, Sweden, 2008-2019.Emerging infectious diseases · 2020Article
- Applying the moving epidemic method to determine influenza epidemic and intensity thresholds using influenza-like illness surveillance data 2009-2018 in Tunisia.Influenza and other respiratory viruses · 2020Article
- The impact of early neuraminidase inhibitor therapy on clinical outcomes in patients hospitalised with influenza A-related pneumonia: a multicenter, retrospective study.BMC infectious diseases · 2020Article
- Impact of early neuraminidase inhibitor treatment on clinical outcomes in patients with influenza B-related pneumonia: a multicenter cohort study.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020Article
- Establishing seasonal and alert influenza thresholds in Morocco.BMC public health · 2020Article
- FluA-p score: a novel prediction rule for mortality in influenza A-related pneumonia patients.Respiratory research · 2020Article
- Severity and outcomes of influenza-related pneumonia in type A and B strains in China, 2013-2019.Infectious diseases of poverty · 2020Article
- Circulation and characterization of seasonal influenza viruses in Cambodia, 2012-2015.Influenza and other respiratory viruses · 2019Article
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12 authors.
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Abstract
objectiveTo establish seasonal and alert thresholds and transmission intensity categories for influenza to provide timely triggers for preventive measures or upscaling control measures in Cambodia.
methodsUsing Cambodia's influenza-like illness (ILI) and laboratory-confirmed influenza surveillance data from 2009 to 2015, three parameters were assessed to monitor influenza activity: the proportion of ILI patients among all outpatients, proportion of ILI samples positive for influenza and the product of the two. With these parameters, four threshold levels (seasonal, moderate, high and alert) were established and transmission intensity was categorized based on a World Health Organization alignment method. Parameters were compared against their respective thresholds.
resultsDistinct seasonality was observed using the two parameters that incorporated laboratory data. Thresholds established using the composite parameter, combining syndromic and laboratory data, had the least number of false alarms in declaring season onset and were most useful in monitoring intensity. Unlike in temperate regions, the syndromic parameter was less useful in monitoring influenza activity or for setting thresholds.
conclusionInfluenza thresholds based on appropriate parameters have the potential to provide timely triggers for public health measures in a tropical country where monitoring and assessing influenza activity has been challenging. Based on these findings, the Ministry of Health plans to raise general awareness regarding influenza among the medical community and the general public. Our findings have important implications for countries in the tropics/subtropics and in resource-limited settings, and categorized transmission intensity can be used to assess severity of potential pandemic influenza as well as seasonal influenza.
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