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. 2015 May 20;10(5):e0127406. doi: 10.1371/journal.pone.0127406

Fig 2. Number of HealthMap meningococcal case alerts in twenty US states reporting disease activity from 2010–2013.

Fig 2

The majority of internet-based case alerts derived from meningococcal disease activity in Oklahoma/Colorado (12.0% and 55.4% in 2010), Colorado/Oregon (16.7%/26.2% in 2011), Oregon/California (34.6% and 32.1% in 2012), and California/New Jersey (50.0% and 32.6% in 2013). Bars indicate actual number of alerts. Blue color indicates case alerts in 2010, orange color indicates case alerts in 2011, light grey color indicates case alerts in 2012, and dark grey color indicates case alerts in 2013.