:class:`SIRS`: The SIRS process
===============================

.. currentmodule:: epydemic

.. autoclass:: SIRS


Parameters
----------

As well as the usual :class:`SIR` parameters, SIRS also includes the
probability of becoming susceptible again.

.. autoattribute:: SIRS.P_RESUSCEPT


Building the model
------------------

.. automethod:: SIRS.build


Event methods
-------------

There is an extra event recorded when a node returns to being
susceptible.

.. autoattribute:: SIRS.RESUSCEPT

.. automethod:: SIRS.resuscept