Figure 5From: Assessing the use of hospital staff influenza-like absence (ILA) for enhancing hospital preparedness and national surveillanceRates of London-ILI (red), hospital staff-ILA (blue), estimated true symptomatic cases (green) from Bayesian model, and estimated true asymptomatic and symptomatic infections (yellow) from Bayesian model for April 2009 through January 2010. Model estimates from Birrell et al. [1].Back to article page