Google gadget for influenza surveillance

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Case study:Case study:Google gadget for influenza surveillanceGoogle gadget for influenza surveillance

Where is the flu?Where is the flu?

Ta-Chien Chan, Peggy Lee, Chwan-Chuen King

Institute of Epidemiology, National Taiwan University

PRINCE MAHIDOL AWARD CONFERENCE 2010


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OutlineOutline

Background Aims of the project

Implementation

Preliminary Results

Discussion & Future Work


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BackgroundBackground Lessons from Typhoon Morakot during

August 8, 2009


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Southern

Taiwan

We are all at here!!We are all at here!!


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ProblemsProblems

Official reaction was slow, disorganized Unable to manage the crisis at its critical

beginning stages

Unofficial efforts occurred Activity was organized by volunteers

Use web-based methods to plot the currentneeds and situation of each known place onthe Google map


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Volunteers based reportingVolunteers based reporting


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InspirationInspiration

These successful interventions providedinspiration for a citizen-powered, web-based surveillance system for emerging

infectious diseases such as the 2009influenza pandemic.


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Aims of the projectAims of the project An informal surveillance system

utilizing bi-directional communication betweenresearchers, public health workers, and the publics.

The target population Citizens Added values: latest flu news and health education

(risk communication)

Reported flu cases in their surrounding environment

Easy to assess and manage Free software


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ImplementationImplementation Three priorities of choosing the platform Free, Accessible to the public,

Easily maintained

Solutions Google gadgets Google web page


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Technical structure of our systemTechnical structure of our system

Core Applications


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How it works in the website ?How it works in the website ?


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Temporal trend of reportedTemporal trend of reported

casescases

Reported Cases

Reported Cases/Population

International

Epidemics

1. Maps of world flu epidemic by WHO

2. Health Map

3. WWMR. by U.S. CDC

4. Japan surveillance by NIID

5. European Union Surveillance


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International epidemicsInternational epidemics


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EpiEpi. Features of reported cases. Features of reported cases

in last 7 daysin last 7 daysDifferent percentage of ILI

symptoms, such as fever,

cough

Different distribution of

age

Possible infected sites,such as schools, work

places, homes,

transportation


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Google gadget embedded in theGoogle gadget embedded in the

websitewebsite

Cases Report & Latest NewsCases Report & Latest News

Latest News

Health Education

Cases Report


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Movies (Health Education)Movies (Health Education)

YoutubeYoutube


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Health EducationHealth Education(Gadget feeding, Manually maintained)(Gadget feeding, Manually maintained)


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Keywords search in Google TrendsKeywords search in Google Trends


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Hospitalized flu casesHospitalized flu cases

maintained by TWmaintained by TW--CDCCDC


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Scientific researchScientific research


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Flu shot finder in Taipei CityFlu shot finder in Taipei City


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How it works in the Gadget ?How it works in the Gadget ?


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Functions of Google gadgetFunctions of Google gadget

Flu News Health Education Cases Reporting


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Google gadget in YourGoogle gadget in Your iGoogleiGoogle


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Management in Google spreadsheetManagement in Google spreadsheet

Databases & Symbology settingDatabases & Symbology setting


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Formula of attack rateFormula of attack rate Susceptible population

Infected population

Anonymous reporting duplicated

reporting Summation across all ages

Dynamic calculation on last 7 days

=

=

n

i

i

n

i

i

Population

ILI

1

1


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Preliminary ResultsPreliminary Results From Dec 17, 2009 to Jan 14, 2010, the

overall site visits are 2,707 visits Around 120 visitors per day

Among all page views, iGoogle Gadgetviews accounted for 82.97% page viewsand Gadget in the site accounted for

2.17% page views The new visitors are gradually increasing

everyday


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Site usageSite usage


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Gadget usageGadget usage


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Types of ReportingTypes of Reporting From late September to December, there

are only 53 persons reported.

The most of the reporting is from the

students (63%). It still needs further promotion to the

teachers, students, parents


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PromotionPromotion


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News PromoteNews Promote


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FacebookFacebook


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Future WorkFuture Work Flexibility on creating the new symptoms

Not only influenza

Other diseases like GI tract, vector-borne diseases

Multi-languages Gadget Localized system

We provided free platform for the interestedcountries to maintain and update the contents

Mobile application in the Africa


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Gadget in SmartphoneGadget in Smartphone

Latest Flu NewsLatest Flu News Health EducationHealth Education Case ReportingCase Reporting


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Contact information:Ta-Chien Chan

E-mail: [email protected]

(Thank You)

http://school.obec.go.th/watbangplamor/images/children.htm

Google gadget for influenza surveillance

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