Week 51 Influenza Forecast for the 2012-2013 U.S. Season
  This document is part of a series of near real-time weekly influenza forecasts made during the 2012-2013 influenza season. Here we present results of a forecast initiated following assimilation of observations for Week 51 (i.e. the forecast begins December 23, 2012) for municipalities in the United States. The forecast was made on December 28, 2012. Results from forecasts initiated the four previous weeks (Weeks 47-50) are also presented. Predictions generated with an alternate SIRS model, run without absolute humidity forcing (no AH), are also presented. 
Jeffrey Shaman, Alicia Karspeck, Marc Lipsitch
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