Tracking the flu on Twitter

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The U.S. is experiencing its most severe flu seasons in years, and researchers at Johns Hopkins University have developed a method to quickly and accurately track the spread of illnesses. It's key component? Twitter.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=34wqFMZGKDY:7US5lDonQNs:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=34wqFMZGKDY:7US5lDonQNs:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=34wqFMZGKDY:7US5lDonQNs:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=34wqFMZGKDY:7US5lDonQNs:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=34wqFMZGKDY:7US5lDonQNs:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=34wqFMZGKDY:7US5lDonQNs:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=34wqFMZGKDY:7US5lDonQNs:gIN9vFwOqvQ)
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