a></code>) estimates growth rates for
consecutive time intervals of cases and calculates the rolling average
of observations (cases or incidence) in the selected time intervals. The
burden levels (<code><a href="../reference/seasonal_burden_levels.html">seasonal_burden_levels()</a></code>) use the previous
seasons to estimate the burden levels of the current season. The
algorithm allows for surveillance of pathogens, by alarming when the
observations have significant growth in the selected time interval and