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Displaying results 1009 - 1016 of 1194
  • Does Climate Predict the Timing of Peak Influenza Activity in the United States?

    Content Type: Abstract

    Though spatio-temporal patterns of influenza spread have often suggested that environmental factors, such as temperature, solar radiation and humidity play a key role, few studies have directly assessed their effect on the timing… read more
    … in the United States using pediatric hospitalization visits with ICD-9 codes equal to 486.00, 487.00, 487.10 or …
  • Performances of a Syndromic Surveillance System during a Heat Wave

    Content Type: Abstract

    The 2003 heat wave in France (15,000 extra deaths in 10 days) led the French institute for public health surveillance to modify its public health surveillance system. One of the major objectives of this program was a real time… read more
    … (4). RESULTS Fifteen hospitals were selected and 118,119 visits were recorded during the 3 months. Sensitivity and …
  • Preliminary Findings from the BioSense Evaluation Project

    Content Type: Abstract

    In October 2006, the Centers for Disease Control and Prevention funded four institutions, including Emory University, to conduct evaluations of the BioSense surveillance system. These evaluations include investigations of situations… read more
    … or locally initiated syndromic surveil- lance for ED visits or 911 calls, sentinel surveillance, ad hoc active …
  • Improving Detection Timeliness by Modeling and Correcting for Data Availability Delays

    Content Type: Abstract

    The performance of even the most advanced syndromic surveillance systems can be undermined if the monitored data is delayed before it arrives into the system.  In such cases, an outbreak may be detected only after it is too late for appropriate… read more
    … 2005. These models predict the percentage of total visits from a given date that will be available to the …
  • Active Fever Surveillance During Malaria Outbreak in Western Jamaica

    Content Type: Abstract

    Malaria, major leading cause of morbidity and mortality in third world countries has been successfully eliminated from Jamaica since 1965. This, however, is being constantly challenged by lack of sustained vector control… read more
    … a confirmed case of malaria is identified, house to house visits were also made to the area where the case came from …
  • The Predictive Accuracy of Non-Regression Data Analysis Methods

    Content Type: Abstract

    Analysis of time series data requires accurate calculation of a predicted value. Non-regression methods such as the Early Aberration Reporting System CuSum are computationally simple, but most do not adjust for day of week… read more
    … for cluster detection, adjustment for total number of visits, and assessment using other data sources and events. …
  • Evaluating Pandemic Influenza Surveillance and Response Systems in Developing Countries: Framework and Pilot Application

    Content Type: Abstract

    A pandemic caused by influenza A/H5N1 or another novel strain could kill millions of people and devastate economies worldwide. Recent computer simulations suggest that an emerging influenza pandemic might be contained in Southeast Asia through rapid… read more
    … questionnaires provided to system operators and site visits. We will develop recommen- dations for system …
  • Linking Public Health and Healthcare Data for Syndromic Surveillance

    Content Type: Abstract

    A number of syndromic surveillance systems include tools that quickly identify potentially large disease outbreak events. However, the high falsepositive rate continues to be a problem in all of these systems. Our earlier work… read more
    … in the patient encounter dataset, same day office visits corresponded well with the flu epidemic curve. …