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Displaying results 1 - 8 of 13
  • Traveling Epidemic Waves in Biosurveillance Data: Identifying Early Hotspots of Respiratory Illness

    Content Type: Abstract

    We have previously shown that timeliness of detection is influenced both by the data source (e.g., ambulatory vs. emergency department) and demographic characteristics of patient populations (e.g., age). Because epidemic waves are thought to… read more
    … large cities, patient distance from an urban center also may affect disease susceptibility and hence timing of visits. Here, we describe spatial models of local … of Respiratory Illness John S. Brownstein, Ph.D., Ben Y. Reis, PhD, Kenneth D. Mandl, M.D. Children’s Hospital …
  • Characterizing Socioeconomic Disparities in the Burden of Influenza and RSV Using Surveillance Data

    Content Type: Abstract

    To measure the impact, within administrative geographic areas, of household income on rates of visits due influenza and RSV among children using real-time syndromic surveillance.
    … geographic areas, of household income on rates of visits due influenza and RSV among children using real-time … geo- graphic areas, of household income on rates of visits due influenza and RSV among children using real- time … tion chief complaint data from emergency department visits at Miami Children’s Hospital in Miami, FL. We …
  • Can all-cause school absenteeism be used to optimize the timing of school closure in response to pandemic influenza?

    Content Type: Abstract

    School closure has long been proposed as a non-pharmaceutical intervention in reducing the transmission of pandemic influenza. Children are thought to have high transmission potential because of their low immunity to circulating… read more
    … data on the rate of influenza-related nurse visits in corresponding schools to validate our findings.   … using data on the rate of influenza-related nurse visits in corresponding schools to validate our findings. … public schools in New York City from 6 September 2005 to 26 June 2009. A model-adjusted school-specific z-score was …
  • 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
    … solar radiation, latitude and longitude so that we may better understand the factors that affect virus … solar radiation, latitude and longitude so that we may better understand the factors that affect virus … in the United States using pediatric hospitalization visits with ICD-9 codes equal to 486.00, 487.00, 487.10 or …
  • Comparison of Distribute and ILINet for national influenza surveillance

    Content Type: Abstract

    During the spring of 2009, a public health emergency was declared in response to the emergence of the 2009 Influenza A (H1N1) virus. Owing to the response, timely data were needed to improve situational awareness and to inform… read more
    … reports of influenza-like illness (ILI) and total patient visits to EDs from participating health jurisdictions, … reports of influenza-like illness (ILI) and total patient visits to EDs from participating health jurisdictions, … sites where data were available. The weekly percent of visits because of ILI were calculated for each system. For …
  • Crowdout: When do other events hinder informal disease surveillance?

    Content Type: Abstract

    Informal surveillance systems like HealthMap are effective at the early detection of outbreaks. However, reliance on informal sources such as news media makes the efficiency of these systems vulnerable to newsroom constraints, namely high-profile… read more
    …   Objective Reporting about large public health events may reduce effective disease surveillance by syndromic or … Difference 95% CI (low) 95% CI (high) Flu 1 Before 7.79 7.0 8.57 Flu 1 After 4.83 4.09 5.57 Flu 1 Parallel 1 4.89 … 4.56 Flu 2 After 4.56 2.55 6.57 Flu 2 Parallel 7.0 4.74 9.26 �ISDS 2011 Conference Abstracts Emerging Health Threats …
  • OutbreakMD: tracking and identifying disease outbreaks in post-earthquake Haiti

    Content Type: Abstract

    HealthMap is a real-time disease epidemic intelligence tracking and visualization system that collects information from general news media, individual first-hand reports and public health sources around the world. Gaps in this effort clearly occur… read more
    … occur during times of crisis where traditional mechanisms may be dismantled. Clinical information gathered by deployed … Hospital Boston, Boston, MA, USA E-mail: chunara@gmail.com Objective OutbreakMD is a mobile Web application that … occur during times of crisis where traditional mechanisms may be dismantled. Clinical information gathered by deployed …
  • Web Search Query Data to Monitor Dengue Epidemics: a New Model for Dengue Surveillance

    Content Type: Abstract

    With an estimated 500 million people infected each year, dengue ranks as one of the most significant mosquito-borne viral human diseases, and one of the most rapidly emerging vectorborne diseases. A variety of obstacles including bureaucracy and… read more
    … those of high morbidity and mortality or where a vaccine may not exist. Objective We aimed to assess whether web … query data. Nature. 2009;457:1012�4. 4. Polgreen PM, Chen Y, Pennock DM, Nelson FD. Using internet searches for … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …