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Displaying results 553 - 560 of 618
  • Spatial cluster detection in schools using school catchment information

    Content Type: Abstract

    The H1N1 outbreak in the spring of 2009 in NYC originated in a school in Queens before spreading to others nearby. Active surveillance established epidemiological links between students at the school and new cases at other schools through… read more
    … percentage of enrollment and total influenza-like illness visits. For each day, the observed values were compared with … schools have increased absenteeism or school nurse visits. The analysis has a couple of limitations: (1) a …
  • Estimating the incidence of influenza cases that present to emergency departments

    Content Type: Abstract

    Our laboratory previously established the value of over-the-counter (OTC) sales data for the early detection of disease outbreaks. We found that thermometer sales (TS) increased significantly and early during influenza (flu) season.… read more
    … the following formula, which assumes that TS and ED visits are proportional to population size (pop) and that … of predicting outcomes that are related to flu ED visits based on TS. Our results suggest that the use of TS, …
  • in silico Surveillance: Highly detailed agent-based models for surveillance system evaluation and design

    Content Type: Abstract

    Modern public health surveillance systems have great potential for improving public health. However, evaluating the performance of surveillance systems is challenging because examples of baseline disease distribution in the population are limited to… read more
    … seeking behavior and a surveillance system for outpatient visits. The resulting in silico surveil- lance data contain … specified surveillance system create a data stream of ILI visits. Outbreaks of influenza are artificially inserted …
  • Electronic Surveillance for Injury Prevention Using a Physician-Operated System

    Content Type: Abstract

    When hazardous materials or products emerge in the market, injury prevention researchers take action to promote awareness and legislation with the goal to prevent further injuries. This cannot be achieved without reliable data on trends and outcomes… read more
    … Marija Borjan* and Margaret Lumia Role of Influenza in ED Visits and Hospitalizations of Adults Over 65 Years in … 2, Umashanthi Pavalanathan1, 3 and Courtney D. Corley1 ED Visits Related to Marijuana Exposures in the Denver … Case Detection of Marijuana-Related Emergency Department Visits Kathryn H. DeYoung*1, Robert Beum1, Yushiuan Chen2, …
  • Use of syndromic surveillance in decision making during the H1N1 pandemic in Ontario, Canada

    Content Type: Abstract

    For public health surveillance to achieve its desired purpose of reducing morbidity and mortality, surveillance data must be linked to public health response. While there is evidence of the growing popularity of syndromic surveillance (1,2), the… read more
    … intensive care unit and ventilator use data, immunization visits, flu assessment centre visits and provincial surveillance bulletins and …
  • Using injury surveillance to assess sport and recreation-related heat illness

    Content Type: Abstract

    Although heat illness is preventable, it is a leading cause of death among U.S. high school and college athletes (1). Despite this, the total burden of heat illness during sports and recreation is unknown. With over 250 million U.S. residents… read more
    … 5946 (95% confidence interval [CI]�4194�7698) ED visits for sports- and recreation-related heat illnesses … U.S. hospital EDs Entire U.S. population Nonfatal ED visits with a reference to heat illness (e.g., ‘‘heat …
  • The Utility of Biosurveillance for Public Health Practice: The Findings from Two Case Studies

    Content Type: Abstract

    States and localities are using biosurveillance for a variety purposes including event detection, situational awareness, and response. However, little is known about the impact of biosurveillance on the operational components… read more
    … and Tarrant County, Texas Advance Practice Center. Site visits were conducted to each of these cases in July, 2007 …
  • A Temporal Change-Point Framework for Syndromic Surveillance in an Academic Environment

    Content Type: Abstract

    The H5N1 avian influenza virus is now considered endemic in poultry in some parts of the world and the continued exposure in humans suggests that the risk of the virus evolving into a more transmissible agent in humans − a step… read more
    … As this is ongo- ing research, we plan to collect patient visits with flu- like symptoms from the University Health …