  This work presents a comparative analysis of Influenzanet data for influenza
itself and common cold in the Netherlands during the last 5 years, from the
point of view of modelling by linearised SIRS equations parametrically driven
by the ambient temperature. It is argued that this approach allows for the
forecast of common cold, but not of influenza in a strict sense. The difference
in their kinetic models is discussed with reference to the clinical background.
