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A New Study Shows How Twitter Can Monitor Disease Outbreaks

A recent study by a computer science class from Brigham Young University has found that Twitter could be used to track the outbreak of diseases.

The researchers sampled 24 million tweets from 10 million unique users, discovering that 15% of the tweets could be located using GPS or information from the users profile.

In fact, only 2% of the tweets in the survey contained GPS data, far less than suggested by survey data, a figure that surprised BYU professor Christophe Giraud-Carrier:

“There is this disconnect that’s well known between what you think you are doing and what you are actually doing,” Giraud-Carrier said.

Each tweet was then searched for words such as “fever,” “flu” and “coughing”, to find out whether flu had been contracted by people in a city or state.

“One of the things this paper shows is that the distribution of tweets is about the same as the distribution of the population so we get a good representation of the country” said Giraud-Carrier. “That’s another nice validity point especially if you’re going to look at things like diseases spreading.”

To monitor outbreaks on Twitter, says Scott Burton, lead author of the study, health officials can use the GPS and keyword information:

“The first step is to look for posts about symptoms tied to actual location indicators and start to plot points on a map” said Burton.  “You could also look to see if people are talking about actual diagnoses versus self-reported symptoms, such as ‘The doctor says I have the flu.’”

The advantage of using Twitter to monitor epidemics is obvious: the speed of the service provides information in real-time, speed which could help health officials warn those living close to an outbreak:

“If people from a particular area are reporting similar symptoms on Twitter, public health officials could put out a warning to providers to gear up for something” said Professor Josh West who collaborated on the project. “Under conditions like that, it could be very useful.”

Professor Giraud-Carrier (@ChristopheGC) and his students have published the study in an issue of the Journal of Medical Internet Research.

Do you think Twitter could be used to monitor epidemics?

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Will Sigsworth

Follow us @SocialMediaF & @WillAtSMF

www.socialmediafrontiers.com
















A New Study Shows How Twitter Can Monitor Disease Outbreaks Reviewed by Unknown on Friday, January 25, 2013 Rating: 5
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