A deterministic model of recurrent epidemics is constructed using a non linear relationship between infection rate and number of contacts. Epidemic waves which are not damped are predicted and a relationship between community size and the period of recurrence is established. A possible explanation of measles outbreaks is suggested.
Received: 1979-3-28
Revised: 1979-5-7
Published Online: 2014-6-2
Published in Print: 1979-8-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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