Literature search flow.

<p>Literature search flow.</p

Some needs for advancement of influenza forecasting.

<p>Some needs for advancement of influenza forecasting.</p

Forecast outcomes used in model validation.

<p>Forecast outcomes used in model validation.</p

Validation metrics used in incidence forecasts.

<p>MAE, Mean absolute error; MdAE, Median absolute error; MAPE, Mean absolute percent error; RMSE, Root mean square error.</p>a<p>Forecast confidence was defined as “the percentage of forecast values within a predefined difference of the actual data during an influenza peak (here chosen as 20% of the mean of the maximal point of the influenza peak).”</p

Number of published evaluations and variables on identified EEBS’s.

<p>*Not all EEBS’s were operational at the time of this report. URL provided when one could be identified.</p><p>Number of published evaluations and variables on identified EEBS’s.</p

Assessment of variables across EEBS evaluations.

<p>Assessment of variables across EEBS evaluations.</p