avian influenza
Harmonizing Community Science Datasets to Model Highly Pathogenic Avian Influenza (HPAI) in Birds in the Subantarctic
Littauer, Richard, Bubendorfer, Kris
Community science observational datasets are useful in epidemiology and ecology for modeling species distributions, but the heterogeneous nature of the data presents significant challenges for standardization, data quality assurance and control, and workflow management. In this paper, we present a data workflow for cleaning and harmonizing multiple community science datasets, which we implement in a case study using eBird, iNaturalist, GBIF, and other datasets to model the impact of highly pathogenic avian influenza in populations of birds in the subantarctic. We predict population sizes for several species where the demographics are not known, and we present novel estimates for potential mortality rates from HPAI for those species, based on a novel aggregated dataset of mortality rates in the subantarctic.
- North America > United States > New York > Tompkins County > Ithaca (0.14)
- Europe > Austria > Vienna (0.14)
- Oceania > New Zealand > North Island > Auckland Region > Auckland (0.05)
- (23 more...)
- Information Technology > Artificial Intelligence (1.00)
- Information Technology > Data Science (0.68)
A Probabilistic Framework for Imputing Genetic Distances in Spatiotemporal Pathogen Models
Stone, Haley, Du, Jing, Xue, Hao, Scotch, Matthew, Heslop, David, Züfle, Andreas, MacIntyre, Chandini Raina, Salim, Flora
Pathogen genome data offers valuable structure for spatial models, but its utility is limited by incomplete sequencing coverage. We propose a probabilistic framework for inferring genetic distances between unsequenced cases and known sequences within defined transmission chains, using time-aware evolutionary distance modeling. The method estimates pairwise divergence from collection dates and observed genetic distances, enabling biologically plausible imputation grounded in observed divergence patterns, without requiring sequence alignment or known transmission chains. Applied to highly pathogenic avian influenza A/H5 cases in wild birds in the United States, this approach supports scalable, uncertainty-aware augmentation of genomic datasets and enhances the integration of evolutionary information into spatiotemporal modeling workflows.
- North America > United States > Minnesota > Hennepin County > Minneapolis (0.16)
- Oceania > Australia > New South Wales > Sydney (0.05)
- North America > United States > Wyoming (0.04)
- (7 more...)
- Information Technology > Data Science (1.00)
- Information Technology > Biomedical Informatics > Translational Bioinformatics (1.00)
- Information Technology > Artificial Intelligence > Machine Learning (1.00)
- Information Technology > Artificial Intelligence > Representation & Reasoning > Spatial Reasoning (0.94)
Health's weekend read includes solar eclipse eye safety, bird flu warnings and more
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- Europe (0.19)
- North America > United States > New York (0.08)
- North America > United States > South Carolina (0.05)
A decision support framework for prediction of avian influenza
For years, avian influenza has influenced economies and human health around the world. The emergence and spread of avian influenza virus have been uncertain and sudden. The virus is likely to spread through several pathways such as poultry transportation and wild bird migration. The complicated and global spread of avian influenza calls for surveillance tools for timely and reliable prediction of disease events. These tools can increase situational awareness and lead to faster reaction to events. Here, we aimed to design and evaluate a decision support framework that aids decision makers by answering their questions regarding the future risk of events at various geographical scales. Risk patterns were driven from pre-built components and combined in a knowledge base. Subsequently, questions were answered by direct queries on the knowledge base or through a built-in algorithm. The evaluation of the system in detecting events resulted in average sensitivity and specificity of 69.70% and 85.50%, respectively. The presented framework here can support health care authorities by providing them with an opportunity for early control of emergency situations.
- North America > United States > Alaska (0.47)
- Asia > Middle East > Saudi Arabia > Mecca Province > Jeddah (0.19)
- Asia > India > Madhya Pradesh (0.11)
- Asia > China (0.11)
Avian Influenza (H5N1) Warning System using Dempster-Shafer Theory and Web Mapping
Maseleno, Andino, Hasan, Md. Mahmud
Based on Cumulative Number of Confirmed Human Cases of Avian Influenza (H5N1) Reported to World Health Organization (WHO) in the 2011 from 15 countries, Indonesia has the largest number death because Avian Influenza which 146 deaths. In this research, the researcher built a Web Mapping and Dempster-Shafer theory as early warning system of avian influenza. Early warning is the provision of timely and effective information, through identified institutions, that allows individuals exposed to a hazard to take action to avoid or reduce their risk and prepare for effective response. In this paper as example we use five symptoms as major symptoms which include depression, combs, wattle, bluish face region, swollen face region, narrowness of eyes, and balance disorders. Research location is in the Lampung Province, South Sumatera. The researcher reason to choose Lampung Province in South Sumatera on the basis that has a high poultry population. Geographically, Lampung province is located at 103040' to 105050' East Longitude and 6045' - 3045' South latitude, confined with: South Sumatera and Bengkulu on North Side, Sunda Strait on the Side, Java Sea on the East Side, Indonesia Ocean on the West Side. Our approach uses Dempster Shafer theory to combine beliefs in certain hypotheses under conditions of uncertainty and ignorance, and allows quantitative measurement of the belief and plausibility in our identification result. Web Mapping is also used for displaying maps on a screen to visualize the result of the identification process. The result reveal that avian influenza warning system has successfully identified the existence of avian influenza and the maps can be displayed as the visualization.
- Asia > Indonesia > Sumatra > Lampung (0.66)
- Asia > Indonesia > Sumatra > South Sumatra (0.65)
- Pacific Ocean > North Pacific Ocean > Java Sea (0.24)
- (7 more...)
Avian Influenza (H5N1) Expert System using Dempster-Shafer Theory
Maseleno, Andino, Hasan, Md. Mahmud
Based on Cumulative Number of Confirmed Human Cases of Avian Influenza (H5N1) Reported to World Health Organization (WHO) in the 2011 from 15 countries, Indonesia has the largest number death because Avian Influenza which 146 deaths. In this research, the researcher built an Avian Influenza (H5N1) Expert System for identifying avian influenza disease and displaying the result of identification process. In this paper, we describe five symptoms as major symptoms which include depression, combs, wattle, bluish face region, swollen face region, narrowness of eyes, and balance disorders. We use chicken as research object. Research location is in the Lampung Province, South Sumatera. The researcher reason to choose Lampung Province in South Sumatera on the basis that has a high poultry population. Dempster-Shafer theory to quantify the degree of belief as inference engine in expert system, our approach uses Dempster-Shafer theory to combine beliefs under conditions of uncertainty and ignorance, and allows quantitative measurement of the belief and plausibility in our identification result. The result reveal that Avian Influenza (H5N1) Expert System has successfully identified the existence of avian influenza and displaying the result of identification process.