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After Google Flu Trends, Wikipedia traffic used to track flu levels

After Google Flu Trends, Wikipedia traffic used to track flu levels

By Press Trust of India | Updated: 21 April 2014 13:06 IST

The number of hits recorded on Wikipedia articles could track the spread of flu and other illnesses faster than existing systems, scientists say.

Researchers at Boston Children's Hospital, US, have developed a method of estimating levels of influenza-like illness in the American population by analysing Internet traffic on specific flu-related Wikipedia articles.

The model by David McIver and John Brownstein estimates flu levels up to two weeks sooner than data from the Centers for Disease Control and Prevention becomes available, and accurately estimates the week of peak influenza activity 17 per cent more often than Google Flu Trends data.

McIver and Brownstein calculated the number of times certain Wikipedia articles were accessed every day from December 2007 to August 2013.

The model they developed performed well both through influenza seasons that are more severe than normal and through events such as the H1N1 pandemic in 2009 that received high levels of media attention.

"Each influenza season provides new challenges and uncertainties to both the public as well as the public health community," researchers said.

"We're hoping that with this new method of influenza monitoring, we can harness publicly available data to help people get accurate, near-realtime information about the level of disease burden in the population," they added.

Following further validation, the model could be used as an automatic system to model flu levels in the US, providing support for traditional influenza surveillance tools, researchers said.

The study was published in the journal PLOS Computational Biology.

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