Publications

2020

• A. C. Miller, A. M. Segre, S. V. Pemmaraju, D. K. Sewell, and P. M. Polgreen, “Association of Household Exposure to Primary Clostridioides difficile Infection with Secondary Infection in Family Members,” JAMA Network Open, vol. 3, iss. 6, 2020.
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• S. Pai, P. M. Polgreen, A. M. Segre, D. K. Sewell, and S. V. Pemmaraju, “Spatiotemporal Clustering of In-Hospital Clostridioides difficile Infection (CDI),” Infection Control and Hospital Epidemiology, vol. 41, iss. 4, pp. 418-424, 2020.
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• R. B. Slayton, J. J. O’Hagan, S. Barnes, S. Rhea, R. Hilscher, M. Rubin, E. Lofgren, B. Singh, A. M. Segre, and P. Paul, “Modeling Infectious Diseases in Healthcare Network (MInD-Healthcare) Framework for Describing and Reporting Multidrug Resistant Organism and Healthcare-Associated Infections Agent-Based Modeling Methods,” Clinical Infectious Diseases, 2020.
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2019

• H. Jang, S. Justice, P. M. Polgreen, A. M. Segre, D. K. Sewell, and S. V. Pemmaraju, “Evaluating Architectural Changes to Alter Pathogen Dynamics in a Dialysis Unit,” in Proceedings of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2019.
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• D. K. Sewell, J. E. Simmering, S. Justice, S. V. Pemmaraju, A. M. Segre, and P. M. Polgreen, “Estimating the Attributable Disease Burden and Effects of Inter-Hospital Patient Sharing on Clostridium difficile Infections,” Infection Control and Hospital Epidemiology, vol. 40, pp. 656-661, 2019.
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• M. T. Lash, J. Slater, P. M. Polgreen, and A. M. Segre, “21 Million Opportunities: A 19 Facility Investigation of Factors Affecting Hand Hygiene Compliance via Linear Predictive Models,” Journal of Healthcare Informatics Research, 2019.
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• R. S. Zahr, C. A. Anthony, P. M. Polgreen, J. E. Simmering, C. J. Goerdt, A. B. Hoth, M. L. Miller, M. Suneja, A. M. Segre, B. L. Carter, and L. A. Polgreen, “A Texting-Based Blood Pressure Surveillance Intervention,” Journal of Clinical Hypertension, 2019.
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• D. K. Sewell, “Analysis of network interventions with an application to hospital acquired infections,” Statistics in Medicine, vol. 38, pp. 5376-5390, 2019.

2018

• S. Pai, S. V. Pemmaraju, P. M. Polgreen, A. M. Segre, and D. K. Sewell, “Spatiotemporal Clustering of CDI at the University of Iowa Hospitals and Clinics (Abstract),” Open Forum Infectious Diseases, vol. 5, iss. S1, p. S188-189, 2018.

• A. C. Miller, I. Singh, E. Koehler, and P. M. Polgreen, “A Smartphone-Driven Thermometer Application for Real-time Population- and Individual-Level Influenza Surveillance,” Clinical Infectious Diseases, vol. 67, iss. 3, pp. 388-397, 2018.
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• R. Butler, M. N. Monsalve, G. W. Thomas, T. Herman, A. M. Segre, P. M. Polgreen, and M. Suneja, “Estimating Time Physicians and Other Healthcare Workers Spend with Patients in an Intensive Care Unit Using a Sensor Network,” The American Journal of Medicine, 2018.
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• L. J. Carr, A. L. Gremaud, J. E. Simmering, N. J. Evans, J. F. Cremer, A. M. Segre, L. A. Polgreen, and P. M. Polgreen, “Gamifying Accelerometer Use Increases Physical Activity Levels of Sedentary Office Workers,” Journal of the American Heart Association, vol. 7, iss. 13, 2018.
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• L. A. Polgreen, C. A. Anthony, L. J. Carr, J. E. Simmering, N. J. Evans, E. D. Foster, A. M. Segre, J. F. Cremer, and P. M. Polgreen, “The Effect of Automated Text Messaging and Goal Setting on Pedometer Adherence and Physical Activity in Patients with Diabetes,” PLOS One, vol. 13, iss. 5, 2018.
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2017

• M. T. Lash, J. Slater, P. M. Polgreen, and A. M. Segre, “A Large-Scale Exploration of Factors Affecting Hand Hygiene Compliance Using Linear Predictive Models,” in IEEE International Conference on Healthcare Informatics, Park City, UT, 2017, pp. 66-73.

• A. L. Gremaud, J. E. Simmering, S. Coe, N. J. Evans, L. A. Polgreen, J. F. Cremer, A. M. Segre, P. M. Polgreen, and L. J. Carr, “More than Just a Game? A Randomized Controlled Trial of Pokèmon Go on Physical Activity Habits (Poster),” 38th Annual Meeting of the Society for Behavioral Medicine, 2017.

• A. L. Gremaud, J. E. Simmering, S. Coe, N. J. Evans, L. A. Polgreen, J. F. Cremer, A. M. Segre, P. M. Polgreen, and L. J. Carr, “MapTrek As a Mobile Health Game for Increasing Physical Activity Levels in Sedentary Office Workers (Poster),” in Workshop of the Fraternal Order of Eagles Diabetes Research Center, 2017.

• Y. H. Wu, E. Stangl, O. Chipara, S. S. Hasan, A. Welhaven, and J. Oleson, “Characteristics of Real-World Signal-to-Noise Ratios and Speech Listening Situations of Older Adults with Mild-to-Moderate Hearing Loss,” Ear and Hearing, 2017.
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2016

• P. M. Polgreen and A. M. Segre, “Network Models, Patient Transfers and Infection Control,” Clinical Infectious Diseases, vol. 63, iss. 7, pp. 894-895, 2016.
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• A. C. Miller, L. A. Polgreen, J. E. Cavanaugh, and P. M. Polgreen, “Hospital Clostridium difficile infection (CDI) incidence as a risk factor for hospital-associated CDI,” American Journal of Infection Control, vol. 44, iss. 7, pp. 825-829, 2016.
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-N. Evans, L. Carr, L. A. Polgreen, A. M. Segre, and P. M. Polgreen, “An mHealth Intervention to Encourage Physical Activity (Poster),” 37th Annual Meeting of the Society for Behavioral Medicine, 2016.

• A. C. Miller, L. A. Polgreen, J. E. Cavanaugh, and P. M. Polgreen, “Hospital Clostridium difficile Infection Rates and Prediction of Length of Stay in Patients Without C. difficile Infection,” Infection Control and Hospital Epidemiology, vol. 37, iss. 4, pp. 404-410, 2016.
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• J. Y. Chen, J. F. Cremer, K. Zarei, A. M. Segre, and P. M. Polgreen, “Using Computer Vision and Depth Sensing to Measure Healthcare Worker-Patient Contacts and Personal Protective Equipment Adherence within Hospital Rooms,” Open Forum Infectious Diseases, vol. 3, iss. 1, 2016.
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• Y. H. Wu, H. C. Ho, S. H. Hsiao, R. Brummet, and O. Chipara, “Predicting Three-Month and 12-Month Post-Fitting Real-World Hearing-Aid Outcome Using Pre-Fitting Acceptable Noise Level (ANL),” International Journal of Audiology, 2016.
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2015

• M. N. Monsalve, S. V. Pemmaraju, S. Johnson, and P. M. Polgreen, “Improving Risk Prediction of Clostridium Difficile Infection Using Temporal Event-Pairs,” in 2015 International Conference on Healthcare Informatics, 2015, pp. 140-149.
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• P. M. Polgreen, T. L. Tassier, and A. M. Segre, “Network Position and Health Care Worker Infections,” Journal of Economic Interaction and Coordination, 2015.
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• C. A. Anthony, L. A. Polgreen, J. P. Chounramany, E. D. Foster, C. J. Goerdt, M. L. Miller, M. Suneja, A. M. Segre, B. L. Carter, and P. M. Polgreen, “Outpatient Blood Pressure Monitoring Using Bi-Directional Text Messaging,” Journal of the American Society of Hypertension, vol. 9, iss. 5, pp. 375-381, 2015.
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• G. C. Fairchild, S. DelValle, L. DeSilva, and A. M. Segre, “Eliciting Disease Data From Wikipedia Articles,” in ICWSM Workshop on Wikipedia Research Challenges and Opportunities, Stanford, CA, 2015.

• T. L. Tassier, P. M. Polgreen, and A. M. Segre, “Vaccination Games with Peer Effects in a Heterogeneous Population,” Administrative Sciences, vol. 5, pp. 2-26, 2015.
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• A. C. Miller, L. A. Polgreen, J. E. Cavanaugh, D. B. Hornick, and P. M. Polgreen, “Missed Opportunities to Diagnose Tuberculosis Are Common Among Hospitalized Patients and Patients Seen in Emergency Departments,” Open Forum Infectious Diseases, vol. 2, iss. 4, p. ofv171, 2015.
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2014

• V. Galluzzi, T. Herman, D. J. Shumaker, D. R. Macinga, J. W. Arbogast, E. M. Segre, A. M. Segre, and P. M. Polgreen, “Electronic Recognition of Hand-Hygiene Technique and Duration,” Infection Control and Hospital Epidemiology, vol. 35, iss. 10, pp. 1298-1300, 2014.
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• M. N. Monsalve, S. V. Pemmaraju, G. W. Thomas, T. Herman, A. M. Segre, and P. M. Polgreen, “Do Peer Effects Improve Hand Hygiene Adherence Among Healthcare Workers?,” Infection Control and Hospital Epidemiology, vol. 35, iss. 10, pp. 1277-1285, 2014.
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• J. A. Fries, P. M. Polgreen, and A. M. Segre, “Mining the Demographics of Craigslist Casual Sex Ads to Inform Public Health Policy,” in IEEE International Conference on Healthcare Informatics, Verona, Italy, 2014.

• J. Furgason, P. M. Polgreen, and A. M. Segre, “Near Real-Time Electronic Feedback to Improve Hand Hygiene Adherence (Poster),” in Association for Professionals in Infection Control and Epidemiology 41st Annual Conference, Anaheim, CA, 2014.

• A. C. Miller, L. A. Polgreen, and P. M. Polgreen, “Optimal Screening Strategies for Healthcare Associated Infections in a Multi-Institutional Setting,” PLOS Computational Biology, vol. 10, iss. 1, pp. 1-11, 2014.
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• S. S. Hasan, O. Chipara, Y. H. Wu, and N. Aksan, “Evaluating Auditory Contexts and their Impacts on Hearing Aid Outcomes with Mobile Phones,” in Proceedings of the International Conference on Pervasive Computing Technologies for Healthcare (PervasiveHealth), 2014.
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• Y. H. Wu, S. S. Hasan, O. Chipara, and E. Standgl, “Using GPS Location Data of Smartphones to Predict Listening Demand (Poster),” in Proceedings of the Annual Conference of American Audiology Society, 2014.

2013

• D. E. Curtis, C. S. Hlady, G. Kanade, S. V. Pemmaraju, P. M. Polgreen, and A. M. Segre, “Healthcare Worker Contact Networks and the Prevention of Hospital-Acquired Infections,” PLOS One, 2013.
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• G. C. Fairchild, P. M. Polgreen, E. Foster, G. Rushton, and A. M. Segre, “How Many Suffice? A Computational Framework for Sizing Sentinel Surveillance Networks,” International Journal of Health Geographics, vol. 12, iss. 56, 2013.
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• J. A. Fries, A. M. Segre, and P. M. Polgreen, “Reply to ‘A Rapid Cycle Quality Improvement Initiative to Increase Compliance with Infection Precautions in a Pediatric Ward’,” Infection Control and Hospital Epidemiology, vol. 34, iss. 2, pp. 214-215, 2013.
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• M. Adamczyk, D. Parker, O. Chipara, J. Cremer, J. Picone, A. Harati, and P. M. Polgreen, “A Mobile Phone Application for Pertussis Classification Based on Machine Learning,” in Proceedings of International Meeting on Emerging Diseases and Surveillance (IMED), 2013.

• S. S. Hasan, F. Lai, O. Chipara, and Y. H. Wu, “AudioSense: Enabling Real-Time Evaluation of Hearing Aid Technology In-Situ,” in Proceedings of the International Symposium on Computer-Based Medical Systems (CBMS), 2013.
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• M. N. Monsalve, S. V. Pemmaraju, and P. M. Polgreen, “Interactions in an Intensive Care Unit: Experiences Pre-processing Sensor Network Data,” in Proceedings of the 4th Conference on Wireless Health, New York, NY, USA, 2013, p. 5:1-5:8.
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2012

• J. A. Fries, A. M. Segre, and P. M. Polgreen, “Towards Linking Anonymous Authorship in Casual Sexual Encounter Ads (Poster),” in 2012 International Society for Disease Surveillance Conference, 2012.

• T. Hornbeck, D. Naylor, A. M. Segre, G. Thomas, T. Herman, and P. M. Polgreen, “Using Sensor Networks to Study the Effect of Peripatetic Healthcare Workers on the Spread of Hospital-Associated Infections,” Journal of Infectious Diseases, vol. 206, iss. 10, pp. 1549-1557, 2012.
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• J. A. Fries, A. M. Segre, and P. M. Polgreen, “Using Online Classfied Ads to Identify the Geographic Footprints of Anonymous, Casual Sex-Seeking Individuals,” in Proceedings of the ASE/IEEE International Conference on Social Computing, 2012.

• T. Herman, M. N. Monsalve, S. V. Pemmaraju, P. M. Polgreen, A. M. Segre, D. Sharma, and G. Thomas, “Inferring Realistic Intra-Hospital Contact Networks Using Link Prediction and Computer Logins (Poster),” in Proceedings of the ASE/IEEE International Conference on Social Computing, 2012.

• J. A. Fries, A. M. Segre, G. Thomas, T. Herman, K. Ellingson, and P. M. Polgreen, “Monitoring Hand Hygiene via Human Observers: How Should We be Sampling?,” Infection Control and Hospital Epidemiology, vol. 33, iss. 7, pp. 689-695, 2012.
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• E. C. Leira, G. C. Fairchild, A. M. Segre, G. Rushton, M. T. Froehler, and P. M. Polgreen, “Primary Stroke Centers Should Be Located Using Maximal Coverage Models for Optimal Access,” Stroke, vol. 43, pp. 2417-2422, 2012.
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• M. Gupta, J. Bertrand, S. Babu, P. M. Polgreen, and A. M. Segre, “An Evolving Multi-Agent Scenario Generation Framework for Simulations in Preventive Medicine Education,” in 2nd ACM International Conference on Health Informatics, 2012.

2011

• S. Tolentino, S. V. Pemmaraju, P. M. Polgreen, A. T. Y. Ho, M. N. Monsalve, and A. M. Segre, “Changes in the Spatial Distribution of Syphilis,” in 2011 International Society for Disease Surveillance Conference, 2011.

• A. Signorini, P. M. Polgreen, and A. M. Segre, “Inferring Travel From Social Media,” in 2011 International Society for Disease Surveillance Conference, 2011.

• T. McCarty, E. Foster, A. M. Segre, and P. M. Polgreen, “Changes to Alcohol-Related Travel Behavior Due to an Under 21 Ordinance (Poster),” in 2011 International Society for Disease Surveillance Conference, 2011.

• J. A. Fries, D. E. Curtis, A. M. Segre, and P. M. Polgreen, “Who Should We Be Listening to? Applying Models of Authority to Detecting Emerging Topics on the EIN,” in 2011 International Society for Disease Surveillance Conference, 2011.

• G. C. Fairchild, A. M. Segre, G. Rushton, E. Foster, and P. M. Polgreen, “Comparing Methods for Sentinel Surveillance Site Placement,” in 2011 International Society for Disease Surveillance Conference, 2011.

• K. Ellingson, P. M. Polgreen, A. Schnieder, L. Shinkunas, L. C. Kaldjian, D. Wright, G. W. Thomas, A. M. Segre, T. Herman, L. C. McDonald, and R. Sinkowitz-Cochran, “Healthcare Personnel Perceptions of Automated Hand-Hygiene Adherence Monitoring Technology,” Infection Control and Hospital Epidemiology, vol. 32, iss. 11, pp. 1091-1096, 2011.
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• P. Rhomberg, P. M. Polgreen, and A. M. Segre, “Comparing Agent-Based and Continuous Compartmental Epidemiology Models (Poster),” in [latex]Epidemics^3[/latex]: The Third International Conference on Infectious Disease Dynamics, 2011.

• T. Hornbeck, A. M. Segre, G. Thomas, T. Herman, and P. M. Polgreen, “On Hand Hygiene Compliance and Diminishing Marginal Returns: An Empirically-Driven Agent-Based Simulation Study,” in Computational Social Science Society of the Americas Annual Conference, 2011.

• D. E. Curtis, P. M. Polgreen, S. V. Pemmaraju, and A. M. Segre, “The Systematic Bias of Random Graphs in Modeling Disease Spread Dynamics (Poster),” in [latex]Epidemics^3[/latex]: The Third International Conference on Infectious Disease Dynamics, 2011.

• G. Thomas, P. M. Polgreen, T. Herman, D. Sharma, B. Johns, H. Chen, G. Scranton, D. Naylor, M. Ireland, T. McCarty, T. Decker, and A. M. Segre, “Improving Patient Safety with Hand Hygiene Compliance Monitoring,” 55th Annual Meeting of the Human Factors and Ergonomics Society, 2011.

• A. Signorini, A. M. Segre, and P. M. Polgreen, “The Use of Twitter to Track Levels of Disease Activity and Public Concern in the US During the Influenza A H1N1 Pandemic,” PLOS One, 2011.
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• D. E. Curtis, T. Herman, G. Thomas, A. M. Segre, and P. M. Polgreen, “Contact Patterns for Healthcare Workers: Not Everyone is the “Average” (Poster),” 21st Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, 2011.

• C. S. Hlady, D. E. Curtis, J. A. Fries, M. Yang, A. M. Segre, and P. M. Polgreen, “iScrub: A Pilot Intervention with Feedback from a Companion Website,” 21st Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, 2011.

• J. A. Fries, S. Tolentino, G. Thomas, T. Herman, A. M. Segre, and P. M. Polgreen, “Monitoring Hand Hygiene via Human Observers: How Should We Be Sampling?,” 21st Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, 2011.

• J. Bertrand, S. Babu, M. Gupta, A. M. Segre, and P. M. Polgreen, “A 3D Virtual Reality Hand Hygiene Compliance Training Simulator (Poster),” 21st Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, 2011.

• J. Paton, F. Nelson, A. M. Segre, and P. M. Polgreen, “Samos: A Community-Driven Open-Access Prediction Market System (Poster),” International Meeting on Emerging Diseases and Surveillance, 2011.

• D. Naylor, T. Hornbeck, A. M. Segre, and P. M. Polgreen, “Analyzing the Impact of Superspreading Using Hospital Contact Networks (Poster),” International Meeting on Emerging Diseases and Surveillance, 2011.

• J. A. Fries, A. T. Y. Ho, A. M. Segre, and P. M. Polgreen, “Using Craigslist Messages for Syphilis Surveillance (Poster),” International Meeting on Emerging Diseases and Surveillance, 2011.

• M. N. Monsalve, S. Tolentino, S. V. Pemmaraju, and P. M. Polgreen, “Can we identify “bellwether” states with respect to syphilis incidence? (abstract),” Emerging Health Threats Journal, vol. 4, iss. 11134, 2011.
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2010

• G. C. Fairchild, A. M. Segre, P. M. Polgreen, and G. Rushton, “Evaluating the Performance of Two Alternative Geographic Surveillance Schemes,” in 2010 International Society for Disease Surveillance Conference, 2010.

• P. M. Polgreen, C. S. Hlady, M. A. Severson, A. M. Segre, and T. Herman, “Method for Automated Monitoring of Hand Hygiene Adherence without Radio-Frequency Identification,” Infection Control and Hospital Epidemiology, vol. 31, iss. 12, pp. 1294-1297, 2010.
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• J. A. Fries, A. M. Segre, L. A. Polgreen, and P. M. Polgreen, “The Use of Craigslist Posts for Risk Behavior and STI Surveillance,” in 2010 International Society for Disease Surveillance Conference, 2010.

• J. Paton, F. Nelson, A. M. Segre, and P. M. Polgreen, “Samos: A Community-Driven Open-Access Prediction Market System (Poster),” in 2010 International Society for Disease Surveillance Conference, 2010.

• A. Signorini, P. M. Polgreen, and A. M. Segre, “Using Twitter to Estimate H1N1 Influenza Activity,” in 2010 International Society for Disease Surveillance Conference, 2010.

• D. E. Curtis, C. L. Hlady, S. V. Pemmaraju, P. M. Polgreen, and A. M. Segre, “Modeling and Estimating the Spatial Distribution of Healthcare Workers,” in 1st ACM International Conference on Health Informatics, 2010.

• T. Hansen, J. P. Hourcade, A. M. Segre, C. S. Hlady, P. M. Polgreen, and C. Wyman, “Interactive Visualization of Hospital Contact Network Data on Multi-Touch Displays,” in Third Mexican Workshop on Human Computer Interaction, 2010.

• T. L. Tassier, P. M. Polgreen, and A. M. Segre, “Targeted Vaccine Subsidies for Healthcare Workers,” in The Computational Social Science Society of the Americas Annual Conference, Tempe, AZ, 2010.

• C. S. Hlady, M. A. Severson, A. M. Segre, and P. M. Polgreen, “A Mobile Handheld Computing Application for Recording Hand Hygiene Observations,” Infection Control and Hospital Epidemiology, vol. 31, iss. 9, pp. 975-977, 2010.
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• P. M. Polgreen, T. L. Tassier, S. V. Pemmaraju, and A. M. Segre, “Prioritizing Healthcare Worker Vaccinations on the Basis of Social Network Analysis,” Infection Control and Hospital Epidemiology, vol. 31, iss. 9, pp. 893-900, 2010.
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• S. Babu, J. Bertrand, P. M. Polgreen, and A. M. Segre, “Virtual Agents Based Simulation for Training Healthcare Workers in Hand Hygiene Procedures,” in Proceedings of the 10th International Conference on Intelligent Virtual Agents, 2010.

• D. E. Curtis, P. M. Polgreen, L. A. Polgreen, S. V. Pemmaraju, and A. M. Segre, “Peer Effects and Influenza Vaccination Among Healthcare Workers,” in 3rd Biennial Conference of the American Society of Health Economists, 2010.

• D. E. Curtis, C. S. Hlady, S. V. Pemmaraju, A. M. Segre, and P. M. Polgreen, “Social Network Influence on Vaccination Uptake Among Healthcare Workers,” in Proceedings of the 20th Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, San Diego, CA, 2010.

• C. S. Hlady, J. A. Fries, D. E. Curtis, A. M. Segre, M. A. Severson, and P. M. Polgreen, “iScrub Online: A System for Standardized Hand-Hygiene Observation and Feedback (Poster),” in Proceedings of the 20th Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, San Diego, CA, 2010.

• P. M. Polgreen, M. A. Severson, G. C. Fairchild, A. M. Segre, G. Rushton, and E. C. Leira, “Approaching Optimization for the Location of Primary Stroke Centers at a State Level (Abstract),” in International Stroke Conference, 2010.

• D. E. Curtis, S. V. Pemmaraju, and P. M. Polgreen, “Budgeted Maximum Coverage with Overlapping Costs: Monitoring the Emerging Infections Network,” in Proceedings of the Twelfth Workshop on Algorithm Engineering and Experiments, ALENEX 2010, Austin, Texas, USA, January 16, 2010, 2010, pp. 112-123.
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2009

• P. M. Polgreen, E. Chen, A. M. Segre, M. Harris, M. Pentella, and G. Rushton, “Optimizing Influenza Sentinel Surveillance at the State Level,” American Journal of Epidemiology, vol. 170, pp. 1300-1306, 2009.
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• C. S. Hlady, D. E. Curtis, M. A. Severson, J. A. Fries, S. V. Pemmaraju, A. M. Segre, T. Herman, and P. M. Polgreen, “A Near-Real-Time Method for Discovering Healthcare Worker Social Networks Via Wireless Devices (Poster),” 47th Annual Meeting of the Infectious Disease Society of America, 2009.

• C. S. Hlady, M. A. Severson, D. E. Curtis, J. A. Fries, S. V. Pemmaraju, A. M. Segre, T. Herman, and P. M. Polgreen, “A Free iPhone Application for Recording Hand Hygiene Rates (Poster),” 47th Annual Meeting of the Infectious Disease Society of America, 2009.

• A. Signorini, A. M. Segre, and P. M. Polgreen, “The Use of Twitter to Track Public Concerns About Novel H1N1 Influenza (Poster),” 47th Annual Meeting of the Infectious Disease Society of America, 2009.

• D. E. Curtis, G. Kanade, S. V. Pemmaraju, P. M. Polgreen, and A. M. Segre, “Analysis of Hospital Healthcare Worker Contact Networks,” in 5th United Kingdom Social Networks Conference, Greenwich, UK, 2009.

• T. Herman, S. V. Pemmaraju, A. M. Segre, P. M. Polgreen, D. E. Curtis, J. A. Fries, C. S. Hlady, and M. A. Severson, “Wireless Applications for Hospital Epidemiology,” in 1st ACM International Workshop on Medical-Grade Wireless Networks, New Orleans, LA, 2009, pp. 45-50.

• D. E. Curtis, J. A. Fries, C. S. Hlady, G. Kanade, S. V. Pemmaraju, P. M. Polgreen, and A. M. Segre, “Health Care Workers’ Social Networks Display Small World Properties: Implications for Disease Control (Abstract),” in Proceedings of the 19th Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, San Diego, CA, 2009.

• J. A. Fries, C. S. Hlady, T. Herman, P. M. Polgreen, and A. M. Segre, “A Low-Cost Non-RFID Based Method for Automated Monitoring of Hand Hygiene Compliance (Poster),” in Proceedings of the 19th Annual Scientific Meeting of the Society for Healthcare Epidemiology of America, San Diego, CA, 2009.

• D. E. Curtis, S. V. Pemmaraju, C. S. Hlady, J. A. Fries, T. Herman, A. M. Segre, and P. M. Polgreen, “Vaccination Strategies for Healthcare Workers Based on Social Networks (Poster),” International Meeting on Emerging Diseases and Surveillance, 2009.

• G. C. Fairchild, E. Chen, G. Rushton, A. M. Segre, and P. M. Polgreen, “Identifying Surveillance Site Locations in Iowa Using a Maximal Population Coverage Model (Poster),” International Meeting on Emerging Diseases and Surveillance, 2009.

• C. S. Hlady, T. L. Tassier, A. M. Segre, T. Herman, S. V. Pemmaraju, and P. M. Polgreen, “Comparing the Length of Isolation Periods to Prevent the Nosocomial Spread of Mumps (Poster),” International Meeting on Emerging Diseases and Surveillance, 2009.
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• P. M. Polgreen, F. D. Nelson, G. R. Neumann, A. M. Segre, J. A. Fries, and L. C. Madoff, “The Use of a Prediction Market to Predict H5N1 Avian Influenza (Poster),” International Meeting on Emerging Diseases and Surveillance, 2009.

2008

• P. M. Polgreen, Z. Chen, A. M. Segre, M. A. Pentella, and G. Rushton, “Optimizing Influenza Sentinel Surveillance at the State Level (Abstract),” in International Conference on Emerging Infectious Diseases, 2008.

• P. M. Polgreen, T. L. Tassier, S. V. Pemmaraju, and A. M. Segre, “An Application of Social Network Theory to Optimize Influenza Vaccination Among Healthcare Workers (Abstract),” in International Conference on Emerging Infectious Diseases, 2008.